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Epson EL 486UC - page 1
EPSON ® EL 486UC User’s Guide This manual is printed on recycled paper and is 100% recyclable. ...
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Epson EL 486UC - page 2
FCC COMPLIANCE STATEMENT FOR AMERICAN USERS This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radi ...
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Epson EL 486UC - page 3
IMPORTANT NOTICE DISCLAIMER OF WARRANTY Epson America makes no representations or warranties, either express or implied, by or with respect to anything in this manual, and shall not be liable for any implied warranties of merchantability and fitness for a particular purpose or for any indirect, special, or consequential damages. Some states do not ...
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Epson EL 486UC - page 4
Important Safety Instructions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 Read all of these instructions and save them for later reference. Follow all warnings and instructions marked on the computer. Unplug the computer from the wall outlet before cleaning. Use a damp cloth for cleaning; do not use liquid or aerosol cleaners. Do not spill liquid of any kind on ...
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Epson EL 486UC - page 5
11. If you use an extension cord with the computer, make sure the total of the ampere ratings of the devices plugged into the extension cord does not exceed the ampere rating for the extension cord. Also, make sure the total of all products plugged into the wall outlet does not exceed 15 amperes. 12. Do not insert objects of any kind into this prod ...
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Epson EL 486UC - page 6
Instructions Importantes de Sécurité 1. 2. 3. 4. 5. 6. 7. 8. 9. Lire completement les instructions qui suivent et les conserver pour references futures. Bien suivre tous les avertissements et les instructions indiqués sur l’ordinateur. Debrancher l’ordinateur de toute sortie murale avant le nettoyage. Utiliser un chiffon humide; ne jamais ut ...
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11. Dans le cas où on utilise un cordon de rallonge avec l’ordinateur, on doits' assurer que la valeur totale d’amperes branches dans le cordon n’excede en aucun temps les amperes du cordon de rallonge. La quantité totale des appareils branches dans la prise murale ne doit jamais exceder 15 amperes. 12. Ne jamais inserer un objet de qu ...
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Epson EL 486UC - page 8
Contents Introduction VGA Utilitie s ...................... Optional Equipment ................. Microprocesso r .................. Mathcoprocessor ................ Memor y ...................... Drive s ....................... How to Use This Manua l ............... Where to Get Help .................. 2 2 2 2 2 2 2 2 Chapter 1 Setting Up Your Sys ...
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Enabling an External Cache ................. . l-19 Setting Shadow ROM Options ................ . l-19 Remapping Memory ..................... . l-19 Using Other Shadow Options ................ . l-20 Exiting the SETUP Program ................. . l-20 Post-SETUP Procedures ...................... . l-21 Turning Off the Computer ..................... ...
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Epson EL 486UC - page 10
Chapter 4 Installin g an d Removing Drives Installing a Hard Disk Drive in the Internal Drive Bay . . . . . 4-2 Removing the Mounting Frames . . . . . . . . . . . . . . . 4-3 Connecting the Hard Disk Drive Cables . . . . . . . . . 4-3 Installing the Hard Disk Below the Mounting Bracket . . 4-8 Installing the Hard Disk On the Mounting Bracket . . . ...
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Memory Module Problems .................... . 6-12 Mouse Problems ........................... 6-12 Controller Problems ........................ . 6-13 External Cache Problems ..................... . 6-13 Appendix A Specifications CPU and Memory .......................... . A-l Controllers .............................. . A-2 Interfaces ............ ...
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Epson EL 486UC - page 12
Introduction Your new Epson ® EL 486UC computer is a fast, high-performance, all-in-one system offering flexibility and expandability in a compact design. It provides the following features: 486SX, 25 MHz microprocessor upgradable to 486SX/33, 486DX/33,486DX2/50, or 486DX2/66 4MB of internal memory, expandable to 32MB System and video BIOS shadow ...
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Epson EL 486UC - page 13
The shadow RAM feature speeds up processing by moving the system and video BIOS into the RAM area of memory. With 512KB of video RAM, the VGA controller supports standard resolutions up to 640 x 480 in 16 colors and extended resolutions up to 640 x 480 in 256 colors or 1024 x 768 in 16 colors (interlaced or non-interlaced). With 1MB of video memory ...
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Math coprocessor You automatically install a math coprocessor when you upgrade your system with a 486DX microprocessor, because the coprocessor is built into the 486DX chip. Memory By adding 1MB, 4MB, 8MB, and 16MB SIMMs (single inline memory modules) to the main system board, you can expand the computer’s memory up to 32MB. Your system also supp ...
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Epson EL 486UC - page 15
Chapter 2 covers general operating procedures such as resetting the computer, using the password, and changing the processor speed. Chapter 3 describes how to remove and replace the computer’s cover, change jumper settings, and install optional equipment such as microprocessor upgrades, option cards, and memory modules. Chapter 4 explains how to ...
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Epson EL 486UC - page 16
Assistance in locating your nearest Authorized Epson Reseller or Service Center Sales of ribbons, supplies, parts, documentation, and accessories for your Epson product Sales of Epson computers and accessories through Epson Direct at (800) 374-7300 Customer Relations Epson technical information library fax service-also available directly by calling ...
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Epson EL 486UC - page 17
Chapter 1 Setting Up Your System This chapter briefly describes how to set up your computer. It includes the following information: Getting started Connecting the computer Running the SETUP program Post-SETUP procedures. Getti n g Started Follow the instructions below for choosing a location for your new system and unpacking it. Choosing a Location ...
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Epson EL 486UC - page 18
Good air circulation. Leave several inches of space around the computer so air can move freely. No electromagnetic interference. Do not place your system too close to any electrical device, such as a telephone or television, which generates an electromagnetic field. Appropriate power source. Connect all your equipment with the appropriate power cor ...
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Epson EL 486UC - page 19
Connecting the Computer Use the illustration below to locate the ports on the back of your system as you connect the keyboard, monitor, printer, and other devices. Connecting a Keyboard To connect a keyboard, hold the cable connector so the arrow on the connector faces up. Insert it into the port marked K/B. Connecting a Mouse Your system came with ...
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Epson EL 486UC - page 20
When you install the drivers for your mouse, make sure you identify the port to which you connected it. See the README file on the diskette that came with your mouse for more information. Connecting a Monitor The way you connect your monitor to the computer depends on the type of monitor you have. If you have a VGA monitor (or a multifrequency moni ...
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6. Plug the other end of the power cord into an appropriate grounded electrical outlet or into the power outlet on the back of the system. Caution Before you plug the monitor’s power cord into the back of your computer, make sure the monitor’s power requirements do not exceed 1 Amp. Connecting a Printer or Other Device Your computer has one par ...
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Epson EL 486UC - page 22
Using the serial ports If you have a printer, a modem, or a mouse with a serial interface, you can connect it to one of the serial (Rs232C) ports on the back of the computer. Make sure you have a cable compatible with a DB-9P connector. To connect a serial device, insert the connector into one of the ports marked COM1 and COM2. If you are connectin ...
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Epson EL 486UC - page 23
Turning On the Computer After you set up your system, you are ready to turn on the power. Use the illustration below to identify the parts of your system. Before you turn on your computer, check the following safety rules to avoid accidentally damaging your computer or injuring yourself: Do not connect or disconnect any peripheral device cables (in ...
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Epson EL 486UC - page 24
Follow these steps to turn on your system: 1. 2. 3. 4. 5. Turn your computer around so the front panel faces you. Place your monitor, printer, and other devices in a convenient arrangement. If there is a protective card in the diskette drive, remove it now. Turn on the monitor, printer, and any other devices connected to the computer. Turn on the c ...
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Epson EL 486UC - page 25
Running the SETUP Program You need to run the SETUP program the first time you use your computer. If your system was configured for you, you may still need to set the date and time. If your system came unconfigured, you need to define how it is set up. You may need to run the program again later if you change your configuration. SETUP is stored in ...
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Epson EL 486UC - page 26
Starting the SETUP Program You can run SETUP whenever you see the operating system command prompt, such as: C:> or A:> To start SETUP, hold down Ctrl and Alt, then press S. Also, whenever you start your computer, if the system detects an error in your system configuration, you will see the following message: Press the Fl key to continue, F2 ...
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Epson EL 486UC - page 27
Whenever you are in the SETUP program, the bottom of the screen lists the keys you can press to perform specific functions. Displaying System Information The SETUP program provides a system information screen that lists the following: Processor type Coprocessor type (if you’ve installed a 486DX microprocessor upgrade) Reserved memory BIOS version ...
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Epson EL 486UC - page 28
Setting the Diskette Drive(s) On your system, diskette drive A is the 3.5-inch high-density drive installed in the lower drive bay on your system. You may also have another drive of a different size or capacity; this is drive B. Check the settings for both drives and correct them if necessary. Note If you add a diskette drive and want to reassign t ...
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Hard disk drive types The table below lists standard hard disk drives. Check this table and your drive documentation to find the correct type number. If none of the types listed matches your drive, see page 1-15. Hard disk drive types Setting Up Your System ...
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Hard disk drive types (continued) 1-14 Setting Up Your System ...
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Defining your own drive type If the parameters for your hard disk (listed in its documentation) do not match any of the types listed in the table above, you can define your own type. Follow these steps: 1. 2. 3. 4. Move your cursor to Hard Disk 1 or 2 and press + or - until you see drive type 48 or 49. Press to move the cursor to the Cyl field. Typ ...
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Epson EL 486UC - page 32
Checking System Memory Your computer comes with 4MB of RAM on a SIMM. DOS and application programs that run under DOS use the first 640KB of memory. You can use the memory above 1MB as extended memory. When you boot your system, the system BIOS detects the type of RAM and updates the total memory size automatically. You see the memory configuration ...
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Epson EL 486UC - page 33
Video display type options Setting Keyboard Options Two options in the SETUP program allow you to control keyboard settings: the Keyboard option and the NumLock on at boot option. For this system, the Keyboard option in the SETUP program has no effect. The NumLock on at boot option determines the initial state of the num lock function when you turn ...
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Setting the Processor Speed The CPU Speed option sets the processor speed to fast or slow. At fast speed, your processor operates at its fastest speed (25,33, 50, or 66 MHz, depending on the speed of your microprocessor). At the slow speed setting, the processor operates at 8 MHz to provide compatibility with older application programs. Setting the ...
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Enabling an External Cache If you have installed external cache in your system, set the External Cache option to Enabled.You must also set your shadow video and BIOS options to Cacheable or WP-Shadow. Setting Shadow ROM Options Your computer can access RAM faster than ROM. Two options, Shadow BIOS ROM and Shadow Video ROM, allow your system to copy ...
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Epson EL 486UC - page 36
Using Other Shadow Options Eight additional shadow options are available, allowing you to shadow 16KB at the memory address listed on the screen. You may want to enable one or more of these shadow options if you are using option cards that contain ROM. Using these options, you can shadow the memory on the card to your system’s RAM or external cac ...
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Epson EL 486UC - page 37
Post-SETUP Procedures After you run SETUP for the first time, you may need to install the operating system on your computer. See your operating system manual for instructions. Once you have installed your operating system, install any software you plan to use. See your application program manuals for instructions. You may also want to install the o ...
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Epson EL 486UC - page 38
Chapter 2 Using Your Computer This chapter briefly describes the following operations: Inserting and removing diskettes Stopping a command or program Resetting the computer Using the password Changing the processor speed. Inserting and Removing Disks To insert a diskette into a 3.5-inch drive, hold the diskette with the label facing up and the meta ...
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Epson EL 486UC - page 39
To insert a diskette into a 5.25-inch drive, hold the diskette with the label facing up and the read/write slot leading into the drive. When you want to remove the diskette, make sure the drive light is off; then press the release button or turn the latch. Remove the diskette and store it properly. Never remove a diskette or reset or turn off the c ...
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Epson EL 486UC - page 40
Resetting the Computer Occasionally, you may want to clear the computer’s current settings or its memory without turning it off. You can do this by resetting the computer. For example, if an error occurs and the computer does not respond to your keyboard entries, you can reset it to reload your operating system and try again. However, resetting e ...
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Epson EL 486UC - page 41
Using a Password If you set a password when you ran the SETUP program, you must enter it every time you turn on or reset the computer. Follow these steps to use your password: 1. If you do not have a hard disk, insert your operating system diskette in drive A. 2. Turn on or reset the computer. You see this prompt: PASSWORD PLEASE: 3. Type your pass ...
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Epson EL 486UC - page 42
Changing the Processor Speed Your computer’s processor can operate at two speeds: fast speed (the speed of your microprocessor) or slow speed (8 MHz). The slow speed is available to provide compatibility with older application programs. When your computer is operating at fast speed, the TURBO light on the front panel is on. When the computer is o ...
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Note You can use the commands listed above while you are running a program. However, if the program uses one of these commands for another function, you cannot use it to change the processor speed. You can, however, change the processor speed through the SETUP program. The speed setting remains in effect until you do the following: Reset your compu ...
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Epson EL 486UC - page 44
Chapter 3 Installing and Removing Options You can enhance the performance of your computer by adding optional equipment such as system, video, or cache memory modules, option cards, or a microprocessor upgrade. This chapter first describes how to remove your computer’s cover to install options and how to replace the cover when you are finished. I ...
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Epson EL 486UC - page 45
Removing the Cover You need to remove the computer’s cover to install any of the options described in this chapter or to install or remove a disk drive (as described in Chapter 4). Follow these steps to remove the cover: 1. Turn off the computer and then any peripheral devices (including the monitor and printer). 2. Disconnect the computer’s po ...
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6. Grasp the sides of the cover and lift it straight up, as shown below: 7. Set the cover aside. 8. Ground yourself to the computer by touching the metal surface of the back panel. could damage a component when you touch it. Installing and Removing Options 3-3 ...
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Epson EL 486UC - page 47
Replacing the Cover When you are ready to replace the computer’s cover, follow these steps: 1. Make sure all the internal components are installed properly. 2. Check all cable connections, especially those that might have been loosened during your work. 3. Make sure all cables are out of the way so they do not catch on the cover. 4. Insert the fr ...
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Locating the Internal Components As you follow the instructions in this chapter, refer to the illustration below to locate the different components inside your computer. Installing and Removing Options 3-5 ...
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Changing the Jumper Settings The main system board in your computer has a number of jumpers that control certain functions. These jumpers are preset at the factory to default positions. See the illustration below to locate the jumpers on the system board. 3-6 Installing and Removing Options ...
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Use the information in the following tables to change jumper settings, if necessary. Jumper settings t If you change this jumper setting to position 2-3, make sure you select MONO for the video Card option in SETUP. Installing and Removing Options 3-7 ...
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Drive assignment jumper setting Processor type jumper settings Caution Do not remove jumper J42. If J42 is off, your system cannot write to RAM. 3-8 Installing and Removing Options ...
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Epson EL 486UC - page 52
Setting the Jumpers If you need to change any jumper settings, follow these steps: 1. Refer to the illustration on page 3-6 to locate the jumpers. 2. If there are any option cards installed in your computer, you need to remove them to access the jumpers. See page 3-17. 3. A jumper’s setting is determined by where the jumper is placed on the pins. ...
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To move a jumper from one position to the other, use needle-nose pliers or tweezers to pull it off its pins and gently move it to the desired position. Caution Be careful not to bend the jumper pins or damage any components on the main system board. 4. Replace any option cards you removed. See page 3-14 for instructions. Installing Memory Modules ( ...
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Epson EL 486UC - page 54
Before you install SIMMs, check the following guidelines to ensure that they will work properly: Use only tin-plated, 36-bit, 72-pin, fast-page mode SIMMs that operate at an access speed of 70ns (nanoseconds) or faster. Be sure all the SIMMs operate at the same speed. Use the correct SIMM configuration to add the amount of memory you want. See the ...
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3. Position the SIMM at an angle over the empty SIMM socket, as shown below. The components on the SIMM should face the power supply. 4. Push the SIMM into the socket until it is seated firmly in the slot. Then tilt it upright, as shown above, guiding the hole at each end of the SIMM over the retaining post at each end of the SIMM socket. If it doe ...
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Epson EL 486UC - page 56
Removing SlMMs If you need to remove SIMMs from your computer (to install different ones, for example), follow the steps below: 1. Remove any option cards that may be blocking your access to the SIMM sockets. (See page 3-17 for instructions.) 2. Use your fingers or a small screwdriver to carefully pull away the metal tabs that secure the SIMM at ea ...
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4. If you are inserting different SIMMs, follow the instructions on page 3-11 to install your new SIMMs. 5. Replace any option cards you removed, as described below, Installing an Option Card This s&ion explains how to install option cards in your computer. Your computer has three 16-bit, full-length slots and two 8-bit, half-length slots to ac ...
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Epson EL 486UC - page 58
Remove the two retaining screws securing the power supply to the back of the computer and the third retaining screw holding the power supply to the base of the computer, as shown below. Be careful not to disconnect any of the cables. Slide the power supply out of the way. 2. Remove the retaining screw securing the option slot cover to the computer, ...
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Epson EL 486UC - page 59
3. Slide out the slot cover and set it aside. (Store it in a safe place in case you remove the option card later.) 4. Unpack the option card and adjust any switches or jumpers on it, if necessary. (Check the option card instructions.) When you handle the card, be careful not to touch any of the components on the circuit board or the gold-edged conn ...
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Epson EL 486UC - page 60
Once the connectors reach the slot, push the card in firmly (but carefully) to insert it fully. You should feel the card fit into place. If it does not go in smoothly, do not force it; pull the card all the way out and try again. 6. Secure the end of the card to the computer with the retaining screw. Removing an Option Card You may need to remove a ...
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Epson EL 486UC - page 61
2. Remove the two retaining screws securing the option card connector board to the back of the computer, as shown below. 3. Pull the board straight up and out of its socket and set it aside. Replacing the Option Card Connector Board If you removed the option card connector board, follow these steps to replace it. Refer to the option card connector ...
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1. Position the board above its slot and push it straight into the connector, as shown below. 2. Secure the board to the back of the computer with its two retaining screws. 3. Re-install any option cards you removed. See page 3-14. Adding Video Memory Your computer comes with 512KB of video memory. You can increase your video memory to 1MB by insta ...
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Epson EL 486UC - page 63
For the memory to work properly, you must install chips in the following configuration (each bank contains two video memory sockets). Video memory chip configuration 1. Locate the memory chip sockets on the main system board, shown on page 3-5. Bank 0 contains two chips soldered to the system board, so you cannot add video memory in this bank. Bank ...
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Epson EL 486UC - page 64
If any of the pins are bent, straighten them gently with your fingers or with small tweezers to align them with the other pins. Be careful when you do this; the pins are fragile and can break off easily. 4. Position one of the memory chips over the first empty socket as shown below, aligning the pins on the chip with the holes in the socket. Make s ...
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Epson EL 486UC - page 65
Installing External Cache You can install either 32KB or 128KB of external cache on your system. Use five DRAM, 28-pin, 8 x 8,20ns or 25ns DIP chips to install 32KB or five 256 x 4,20ns DIP chips to install 128KB of external cache on your system. 1. Locate the external cache sockets on the main system board, shown on page 3-5. 2. If there is an opt ...
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Epson EL 486UC - page 66
4. 5. 6. Position one of the cache chips over the first socket as shown below, aligning the pins on the chip with the holes in the socket. Make sure the small notch on the end of the chip is aligned with the corresponding notch on the socket. Gently press the chip halfway into the socket (to make sure it is correctly aligned). If the chip goes in a ...
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Epson EL 486UC - page 67
10. Run SETUP to enable the External Cache option and check that the Shadow BIOS ROM and Shadow Video ROM options are set to Cacheable or WP-Shadow. Make sure you save your settings as you leave SETUP (see Chapter 1). When the computer restarts, it displays the amount of external cache you have installed on the system. Upgrading the Microprocessor ...
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Epson EL 486UC - page 68
Possible microprocessor upgrades Installing and Removing Options 3-25 ...
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Epson EL 486UC - page 69
Replacing the Processor Chip You’ll find it easier to remove your existing microprocessor if you remove the option card connector board. Refer to page 3-17 to remove the option card connector board, then follow these steps to replace the processor chip: 1. Use the illustration on page 3-5 to locate the microprocessor on the system board. Caution ...
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Epson EL 486UC - page 70
3. Gently pull the processor chip straight up and set it aside. 4. Remove the replacement chip from its package and inspect the pins. If they are bent, do not install the processor chip. Contact your vendor for a new microprocessor. 5. Position the processor chip over the socket, aligning the notched edge of the chip (marked with a dot) with pin 1 ...
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Epson EL 486UC - page 71
8. If you removed the option card connector board, see page 3-18 for instructions on replacing it. Then replace any option cards you removed. lnstalling a Heat Sink If you are installing a 486DX2/50 or a 486DX2/66 processor, you must install an EG&G heat sink (669-52AB) on the processor chip. Follow the instructions above to install the process ...
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Epson EL 486UC - page 72
Replacing the Oscillator If you are installing a 486SX/33, a 486DX/33, or a 486DX2/66 processor, you must replace the existing oscillator with an Ecliptek 33 MHz oscillator (EC1100). Follow these steps to remove the existing oscillator and replace it with the new oscillator: 1. 2. 3. 4. 5. Use the illustration on page 3-5 to locate the oscillator o ...
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Epson EL 486UC - page 73
6. Gently push the oscillator into the socket. 7. Secure the oscillator to the system board using a new tie wrap. (If you didn’t buy an upgrade kit, you must obtain the oscillator tie wrap separately.) Post-installation Procedures After you install or remove options such as memory modules or a microprocessor, you must run SETUP to update the comp ...
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Epson EL 486UC - page 74
Chapter 4 lnstalling and Removing Drives This chapter describes how to install and remove optional drives in your computer. You can use these instructions to install a variety of devices, including hard disk drives, a diskette drive, a tape drive, or a CD-ROM drive. Although your drive may look different from the ones illustrated here, you should b ...
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Epson EL 486UC - page 75
Installing a Hard Disk Drive in the Internal Drive Bay Your computer may have a hard disk drive already installed in the internal drive bay. If not, you can install a l-inch high by 3½ inch wide drive in this bay. Here you will find steps for the following procedures: Removing the mounting frames from the hard disk drive (if necessary) Connecting ...
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Epson EL 486UC - page 76
Removing the Mounting Frames If there are mounting frames attached to your hard disk drive, you need to remove them before you can install the drive. Follow these steps: 1. On your drive, there may be a plastic guiderail and metal grounding plate attached to one of the mounting frames. If so, remove the screws securing them to the mounting frame an ...
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Epson EL 486UC - page 77
The hard disk drive ribbon cable is attached to your system board. You may need to remove it, for instance, to install a cable that supports two hard disk drives in this system. See “Connecting the drive cable to the system board,” below, for instructions on reconnecting the cable to the system board. Otherwise, see page 4-6 for instructions on ...
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Epson EL 486UC - page 78
2. Locate the hard disk drive connector on the system board. 3. 4. Position one of the end connectors so that the red wire aligns with pin 1 of the connector on the system board. There is a “1” printed on the system board to identify pin 1. Make sure the holes in the cable connector fit over the pins in the system board connector; then push in ...
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Epson EL 486UC - page 79
Connecting the drive and power cables to the drive Follow the steps below to connect the hard disk drive ribbon cable and a power supply cable to the drive: 1. Locate the free connector on the end of the hard disk drive ribbon cable. 2. Locate pin 1 on the drive connector. If you do not see it on the connector casing, turn the drive over so you can ...
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Caution If you do not correctly align the holes with the pins, you could severely damage your hard disk drive when you push in the cable connector. 5. Locate one of the power supply cables that lead from the power supply. (They have multi-colored wires and a plastic connector on the end.) 6. Position the power supply cable connector so that its not ...
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Epson EL 486UC - page 81
Installing the Hard Disk Below the Mounting Bracket If you have a l-inch tall hard disk drive, you can install it below the hard disk drive mounting bracket. Refer to the illustrations below and follow these steps: 1. Remove the screw securing the mounting bracket to the base of the computer, as shown below. 2. Slide the mounting bracket toward the ...
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Epson EL 486UC - page 82
4. Align the hard disk drive so that the cables lead toward the diskette drive bays and the four holes at the base of the drive are above the four pegs, as shown below. 5. Gently lower the drive over the pegs. When the hard disk drive is resting on the pegs, it will not move from side to side. 6. Lower the mounting bracket over the hard disk drive, ...
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Epson EL 486UC - page 83
7. Slide the bracket toward the side of the computer, as shown below, until the tabs hold the bracket in place. 8. Secure the mounting bracket with a screw on each side, as shown above. Installing the Hard Disk On the Mounting Bracket You can install a hard disk drive on top of the mounting bracket rather than under it. Refer to the illustration of ...
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Epson EL 486UC - page 84
2. Lift the mounting bracket out of the computer. 3. Turn the hard disk drive over and locate the four mounting holes on the drive. 4. Position the bracket on the hard disk drive, aligning the holes in the bracket with the holes on the drive. 5. Secure the bracket to the drive with four screws. Installing and Removing Drives 4-11 ...
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Epson EL 486UC - page 85
6. Turn the drive and the mounting bracket over, then slide the slots in the mounting bracket under the tabs at the base of the computer until the tabs hold the bracket in place. Note If the drive does not fit within the internal bay, you can move the mounting frame toward the power supply and align only one set of the slots on the mounting bracket ...
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Epson EL 486UC - page 86
Removing a Hard Disk Drive From the Internal Drive Bay To remove a hard disk drive, reverse the installation steps outlined above. Then disconnect the hard disk drive ribbon cable and the power supply cable from the back of the drive. When you disconnect the cables, grasp the connectors and pull them straight out so you do not bend the pins; do not ...
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Epson EL 486UC - page 87
Follow these steps to install a drive in the upper horizontal drive bay: 1. Remove the faceplate from the bay. Place your hand behind the plate through the hole in the drive bay, and push the faceplate forward, as shown below. Keep the faceplate in a safe place in case you remove a drive later. 2. Remove any brackets or mounting frames from the dri ...
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3. Slide the drive into the bay until it is flush with the front of the computer. 4. Align the slots at the side of the drive bay with the mounting holes in the drive. Then secure both sides of the drive to the drive bay using the retaining screws. drive bay Installing and Removing Drives 4-15 ...
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Epson EL 486UC - page 89
Connecting the Drive and Power Cables To connect the drive to the computer, you need to connect both the drive ribbon cable and a power supply cable. Follow the steps below. 1. If you are installing a diskette drive, locate the diskette drive ribbon cable. (The connector in the middle of the cable is already connected to the system board.) 2. If yo ...
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Epson EL 486UC - page 90
If you are installing a hard disk drive in the upper horizontal bay, make sure you use the proper hard disk drive ribbon cable and connect the ribbon cable to the hard disk drive connector. Also, if this is the second hard disk drive in your system, make sure you set the jumpers on both hard disk drives to indicate which is the master and which is ...
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Epson EL 486UC - page 91
If you installed a diskette drive in the upper bay, it is drive B; the lower drive is A. However, if you want to reassign the upper diskette drive as drive A, you can change jumpers J35 through J38. See Chapter 3 for instructions. Removing a Drive from the Upper Drive Bay To remove a drive from the upper drive bay, follow these steps: 1. Remove bot ...
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Epson EL 486UC - page 92
2. Identify pin 1 on the drive and align the connector so that the red wire is at pin 1, as shown below. red wire 3. 4. Locate the multi-colored power supply cable with the small connector. This cable is attached to the system board rather than the power supply. Position the power supply cable connector so that the holes fit over all the pins. The ...
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Epson EL 486UC - page 93
Post-installation Procedures After you install or remove your drive(s) and replace the cover on your computer, you need to run the SETUP program to define the correct configuration for your newly-installed drive. See Chapter 1 for instructions. 4-20 Installing and Removing Drives ...
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Epson EL 486UC - page 94
Chapter 5 Installing Video Drivers The Utility diskettes included with your system contain enhanced VGA (video graphics array) drivers and utilities for your computer’s built-in VGA adapter. This chapter describes how to install and use these drivers and utilities. Your computer’s built-in VGA adapter is compatible with IBM VGA. The drivers and ...
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Epson EL 486UC - page 95
This chapter describes installation procedures for these common applications: Lotus 1-2-3 and Symphony, version 2.x (see page 5-3) Microsoft Windows, version 3.1 (see page 5-4) Microsoft Word, version 5.0 (see page 5-5) Quattro Pro, version 2.x (see page 5-6) WordPerfect, version 5.1 (see page 5-7) Your Utility diskettes contain VGA utilities and d ...
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Epson EL 486UC - page 96
Lotus 1-2-3 or Symphony If you have not yet installed Lotus 1-2-3 or Symphony, follow the instructions in your Lotus documentation to install it. Then follow these steps to install the drivers: 1. 2. 3. 4. 5. 6. 7. 8. Insert Utility Diskette 1 in drive A. Typ e A : and pres s Ente r to log onto drive A. Copy the drivers from the Utility Diskette 1 ...
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Epson EL 486UC - page 97
9. Selec t Text displa y to modify the text mode or Graphic s displa y to modify the graphics resolution. Then press Enter. 10. Select the TVGA driver you want to install from the displayed list and press Enter. 11. Select Return to menu and press Enter. 12. At the Installation menu, select Save changes. 13. At the prompt, type the name you want to ...
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Epson EL 486UC - page 98
5. Insert the Utility Diskette 1 in drive A. 6. Type the following path and press Enter: A:WIN 7. Select the driver you want to install. 8. Follow the instructions on the screen to finish running SETUP. Microsoft Word If you have not yet installed Word 5.0, follow the instructions in your Word documentation to install it. Then follow these instruc ...
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Epson EL 486UC - page 99
9. Press F1 to list the display modes available. Press to see additional drivers. Choose the display mode you want to use. Note Mouse support is not available for 132-column modes. Your Word application now uses the display mode you selected. Quattro Pro If you have not yet installed your Quattro Pro application, follow the instructions in the Quat ...
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Epson EL 486UC - page 100
Your Quattro Pro application now uses the display mode you selected. WordPerfect If you have not yet installed WordPerfect 5.1, follow the instructions in your WordPerfect documentation to install it. Then follow the instructions below to install the new drivers. 1. 2. 3. Log onto the WordPerfect directory on your hard disk. Insert the Utility Disk ...
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Epson EL 486UC - page 101
13. Select 0 to exit. Your selection is saved and used for displaying text as well as the print preview and graphics functions of WordPerfect. 5-8 Installing Video Drivers ...
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Epson EL 486UC - page 102
Chapter 6 Troubleshooting If you have any problems as you set up and use your computer, refer to this chapter. You can correct most problems by adjusting a cable connection, repeating a software procedure, or resetting the computer. The troubleshooting suggestions in this chapter are organized in general categories, such as “The computer will not ...
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Epson EL 486UC - page 103
Use these guidelines to locate information about your system: Serial number: Video BIOS version: System BIOS version: System configuration: DOS version: Software versions: Look on the back panel of the computer to see the serial number. Restart your system. You’ll see the video BIOS version number displayed on the screen when your system performs ...
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Epson EL 486UC - page 104
The Computer Will Not Start The power light is on, but the computer does not start. Replace your main operating system diskette and turn on the computer again. Caution If you turn off the computer, always wait at least 20 seconds before turning it back on. This prevents damage to the computer’s electrical circuitry. The computer does not start an ...
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Epson EL 486UC - page 105
You installed of removed system components, and now your computer does not start. Check to make sure you have reconnected all the internal and external cables correctly. You may have installed option cards that exceed the system’s power requirements. Check the power requirements in Appendix A. If you replace the microprocessor, make sure the proc ...
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Epson EL 486UC - page 106
Keyboard Problems The screen displays a keyboard error message when you turn on of reset the computer. Make sure the keyboard is securely connected to the correct port. Nothing happens when you type on the keyboard. See “The Computer Does Not Respond,” above. The cursor keys on the numeric keypad do not work properly. If the Num Lock light in t ...
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Epson EL 486UC - page 107
If you installed a display adapter card, make sure your monitor and display adapter match. Also check to see if the card’s switches or jumpers are set properly. If your display adapter card is not VGA, make sure you have your service representative disable the system’s built-in VGA adapter for you. If you are using a monochrome monitor that is ...
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Epson EL 486UC - page 108
Diskette Problems You see a diskette error message. Reinsert the diskette, making sure you insert it all the way. If the drive has a latch, turn it down to secure the diskette. Also, check to see that you have inserted the right type of diskette in the drive. For example, make sure you are not inserting a high-density diskette in a double-density d ...
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Epson EL 486UC - page 109
Diskette Drive Problems A newly-installed diskette drive is not working properly. Make sure you have installed the drive correctly and check all the cable connections. You see a diskette drive error when you start your computer. Run the SETUP program and configure your system for the correct type of diskette drive. The diskette drive is making loud ...
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Epson EL 486UC - page 110
You are unable to store data on th e har d disk drive. Make sure you have partitioned and formatted the drive correctly for your operating system. Use the procedures provided in your operating system manual. Also, make sure your hard disk drive has been physically formatted by the manufacturer. (All Epson-supplied drives are physically formatted at ...
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Epson EL 486UC - page 111
Software Problems The application program does not start. Check that you are following the correct procedure for starting the program and that it is installed correctly. If you do not have a hard disk, make sure the correct diskette is in the diskette drive. If you need help, contact your software manufacturer. The application program is having tro ...
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Epson EL 486UC - page 112
The printer prints garble d information. Check the printer manual for the printer’s correct DIP switch or control panel settings. Also, make sure you have the proper drivers installed for your printer and make sure you’ve selected the correct printer within your software application. Option Card Problems A newly installed option card is not wor ...
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Epson EL 486UC - page 113
An external device connected to the option curd is not working correctly. Make sure you are using the proper cable to connect the device to the card. Memory Module Problems The memory count displayed by the power-on diagnostics program is incorrect. You may have installed the SIMMs incorrectly. They may be the wrong type or speed, or they may not b ...
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Epson EL 486UC - page 114
Controller Problems You see a controller error for the hard disk drive controller or the I/O port controllers when you start your system. The indicated controller on your system board may be faulty. If you have an option card with a controller that will work with your device, you can install it and change the jumper settings on the system board to ...
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Epson EL 486UC - page 115
Appendix A Specifications CPU and Memory 32-bit CPU Intel 80486SX/25 microprocessor; upgradable to 486SX/33, 486DX/33, 486DX2/50, or 486DX2/66 System speed Fast and slow speeds available; fast speed is 25 MHz or the speed of your upgraded microprocessor, slow speed is 8 MHz; speed selection through SETUP program and keyboard commands Memory 4MB RAM ...
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Epson EL 486UC - page 116
Clock/ calendar Controllers Video Diskette Hard disk lnterfaces Monitor Parallel Serial Game Keyboard Real-time clock, calendar, and CMOS RAM socketed on main system board with built-in battery backup Trident VGA controller on main system board; provides resolutions up to 1024 x 768 in 256 colors Controller on main system board supports up to two d ...
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Epson EL 486UC - page 117
Option slots Three 16-bit, full-length and two 8-bit, half-length I/O expansion slots, ISA compatible, 8 MHz bus speed Speaker Internal Muss storage Two 3 ½ inch wide, third-height drives (one internal mount) and one 5 ¼ inch wide, half-height drive Diskette drives Your system supports the following diskette drives: 3.5-inch diskette drive, 1.44M ...
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Epson EL 486UC - page 118
Physical Characteristics Width 15.6 inches (396 mm) Depth 14.5 inches (368 mm) Height 4.1 inches (104 mm) Weight 15 lb (6.8 kg), without drives or keyboard Power Supply Type input ranges Maximum outputs Frequency 65 Watt, fan-cooled 90 to 260 VAC +5 VDC at 7.5 Amps, +12 VDC at 2.0 Amps, -12 VDC at 0.3 Amps 47 to 63 Hz Option Slot Power Limits (Tota ...
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Epson EL 486UC - page 119
Environmental Requirements Tested Operating Environments Although your system will run most software applications, the following operating environments have been tested for compatibility with your system. As new environments become available, these also will be tested. MS-DOS 3.3 through 6.0 DR DOS 6.0 Novell NetWare 3.11* Novell NetWare 2.2* Novel ...
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Epson EL 486UC - page 120
Available Options The following list represents only a few of the options supported for this product. Call your nearest marketing location or Epson Direct for more information on specific options. A-6 Specifications ...
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Epson EL 486UC - page 121
Specifications A-7 ...
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Epson EL 486UC - page 122
A-8 Specifications ...
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Epson EL 486UC - page 123
Index A AC power inlet, 1-4, 1-6, 6-3 Addresses, memory, 1-11, 1-20 Air circulation, 1-21 Altitude, A-5 Analog connector, 1-4 VGA input, 5-1 Application program copy protected, 2-5 display problems, 6-6 exiting, 1-21, 2-3 loading automatically, 1-8 problems, 6-10 requiring slow speed, 1-18, 2-5 stopping, 2-2 timing requirements, 2-5 VGA drivers, 5- ...
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Epson EL 486UC - page 124
CGA (color graphics adapter), 1-17 Chassis, 3-4 Checking system memory, 1-16 CHKDSK command, 6-7 Choosing a location, 1-1 Clock, real-time, 1-11, A-2 CMOS RAM, 1-9, A-2 Command prompt, 1-8, 1-10, 1-20 Compatibility, VGA driver, 5-2 Computer problems, 6-3 Configuration changing, 1-9-10, 1-20 drive, 4-20 files, 3-30 SIMM, 1-16, 3-10-11 system, 6-1 Co ...
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Epson EL 486UC - page 125
Diskette label, 2-1-2 problems, 6-7 removing, 1-21, 2-1 type, 6-7 write-protected, 6-7 Diskette drive assignment jumpers, 1-12, 3-8, 4-18 bay, 1-7, 3-5 cable, 4-16-19, 6-8 caution, 4-17 configuration through SETUP, 4-20, 6-B controller, A-2 errors, 6-8 faulty, 6-7 installing, 4-1-20 jumpers, 3-8, 4-18 latch, 2-2, 6-7 light, 2-2 power cable, 4-16-18 ...
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Epson EL 486UC - page 126
Formatting diskettes, 6-7 hard disk drive, 6-9 Four-pin jumper, 3-9 Frequency, power supply, A-4 Full-length option slots, A-3 Function keys, SETUP, 1-10 G Game port, Intro-1, A-2 Game port jumpers, 3-7 Grounding plate, 4-3 Grounding yourself, 3-3, 3-20 , 3-26 Guiderail, 4-3 H Half-length option slots, A-3 Hard disk drive bays, 3-5 cable, 4-3-7, 4- ...
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Epson EL 486UC - page 127
J Jumpers cache, 3-8, 3-23 changing settings, 3-6, 3-9 CPU, 3-8 diskette drive assignment, 1-12, 3-8, 4-18 display adapter, 6-6 four-pin, 3-9 game port, 3-7 hard disk drive, 4-2, 4-17, 6-8 location, 3-5 main system board, 3-5, 3-7 option card(s), 3-14, 3-16, 6-11 port settings, 3-7 processor type settings, 3-8 reassigning diskette drive, 1-12, 3-8, ...
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Epson EL 486UC - page 128
Modem, Intro-1, 1-6 Monitor assigning type, 1-17 brightness, 1-8,6-5 cables, 1-34 connecting, 1-4 contrast, 1-8,6-5 monochrome, 1-17,6-6 multifrequency, 1-4,5-1 power cord, 1-4,6-6 power switch, 6-6 problems, 6-5 reconnecting, 3-4 turning off, 1-21,3-2 turning on, 1-8 VGA port, Intro-1, 1-4,1-16 Mounting bracket identifying, 4-2 installing hard dis ...
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Epson EL 486UC - page 129
Port parallel, Intro-1, 1-5, 3-7, A-2 RS-232C, 1-6, A-2 serial, Intro-1, l-3-5,3-7, A-2 VGA, Intro-1, l-4, 1-16 Post-installation procedures, 3-30 Power button, l-8 inlet, AC, l-4, 1-6, 6-3 light, 6-3, 6-5 monitor switch, 6-5-6 Power cable computer, l-5, l-7, 3-2, 3-4 diskette drive, 4-16-18, 6-8 hard disk drive, 4-2-3, 4-6-7, 4-13, 4-17 monitor, 1 ...
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Epson EL 486UC - page 130
Serial port connecting, 1-3-5 controller, A-2 description, Intro-1 jumpers, 3-7 Settings, clearing, 2-3 SETUP assigning drive type, 4-2 booting sequence, 1-18 changing processor speed, 1-18, 2-6, A-1 changing values, 1-11 date and time function, 1-11 drive configuration, 4-20 enabling cache, 1-19 exit menu, 1-20 factory default settings, 1-20 funct ...
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Epson EL 486UC - page 131
Turning on computer, 1-7 TVGA, 5-4, 5-7 Two-pin jumper, 3-9 U Upgrading the processor, Intro-2 User-defined drive type, 1-14 Utility disk compaction, 6-9 diskettes, 5-1 VGA, Intro-2, 5-1-2 V VGA controller, Intro-2, A-2 diskettes, 5-1 driver compatibility, 5-2 drivers, Intro-4, 1-21, 5-l-8 IBM, 5-1 interface, A-2 Lotus 1-2-3 drivers, 5-3 port, Intr ...
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Epson EL 486UC - page 132
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