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American Megatrends MAN-759 - page 1
Pegasus Pentium® II PCI ISA Motherboard User's Guide MAN-759 7/3/97 ...
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American Megatrends MAN-759 - page 2
Pegasus PCI Motherboard User’s Guide ii © Copyright 1997 American Megatrends, Inc. All rights reserved. American Megatrends, Inc. 6145F Northbelt Parkway Norcross, GA 30071 This publication contains proprietary information which is protected by copyright. No part of this publication may be reproduced, transcribed, stored in a retrieval system, t ...
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American Megatrends MAN-759 - page 3
Preface iii Preface To the OEM Thank you for purchasing the high performance American Megatrends Pegasus Pentium II PCI ISA motherboard. This product is a state of the art motherboard that includes the famous AMIBIOS. It is assumed that you have also licensed the rights to use the American Megatrends documentation for the American Megatrends Pegasu ...
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American Megatrends MAN-759 - page 4
Pegasus PCI Motherboard User’s Guide iv American Megatrends BBS The American Megatrends BBS permits OEMs, VARs, and system integrators to access technical information about motherboard and BIOS products. Product Engineering Change Notices, Tech Tips, Technical Notes, and complete technical manuals are available. Data Transmission Rates The Americ ...
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American Megatrends MAN-759 - page 5
Chapter 1 Hardware Installation 1 1 Hardware Installation Overview The American Megatrends Pegasus PCI Pentium II ISA motherboard features include: • an Intel Pentium II CPU operating at 233, 266, 300 MHz or higher speeds , • up to 768 MB of system memory on the motherboard, • parity checking or ECC (Error Checking and Correction), • PCI lo ...
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American Megatrends MAN-759 - page 6
Pegasus PCI Motherboard User’s Guide 2 Pegasus PCI Dimensions The motherboard is approximately 8.55” by 13” (baby AT size). The motherboard height restrictions are shown below: Warning This motherboard contains sensitive electronic components that can be easily damaged by static electricity. Follow the antistatic instructions carefully to ens ...
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American Megatrends MAN-759 - page 7
Chapter 1 Hardware Installation 3 Pegasus PCI Motherboard Layout P1 BANK 0 BANK 2 BANK 1 P3 J8 Parallel J4 Floppy J1 PS/2 Mouse J2 COM2 J10 Kbd ...
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American Megatrends MAN-759 - page 8
Pegasus PCI Motherboard User’s Guide 4 Step 1 Unpack the Motherboard Step Action 1 Inspect the cardboard carton for obvious damage. If damaged, call 770-246 -8645. Leave the motherboard in its original packing. 2 Perform all unpacking and installation procedures on a ground- connected anti -static mat. Wear an anti -static wristband grounded at t ...
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American Megatrends MAN-759 - page 9
Chapter 1 Hardware Installation 5 Step 2 Configure CPU Speed J16, J17, J18, and J19 are 2-pin bergs that help set the CPU speed. J21 is a 3- pin berg and J22 is an 8-pin berg that set the CPU speed, as described below. A visual display of the CPU speed jumper settings is shown below. CPU Speed J16 J17 J18 J19 J21 J22 200 MHz Shorted OPEN Shorted OP ...
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American Megatrends MAN-759 - page 10
Pegasus PCI Motherboard User’s Guide 6 Step 3 Configure CPU Voltage J12 J12 is a 10-pin berg that sets the voltage for the Pentium II CPU in CPU Slot1. Core CPU Voltage J5 and J15 Setting 3.50V Short Pins 2-7 Short Pins 3-8 Short Pins 4-9 Short Pins 5-10 3.40V Short Pins 2-7 Short Pins 3-8 Short Pins 4-9 3.3V Short Pins 2-7 Short Pins 3-8 Short P ...
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American Megatrends MAN-759 - page 11
Chapter 1 Hardware Installation 7 Core CPU Voltage J5 and J15 Setting 1.85V Short Pins 1-6 Short Pins 2-7 Short Pins 4-9 Short Pins 5-10 1.8V Short Pins 1-6 Short Pins 2-7 Short Pins 4-9 No CPU None Step 4 Install Voltage Regulator A Voltage Regulator Module (VRM) is shipped with every Pegasus motherboard. You can order VRMs for Intel Pentium II CP ...
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American Megatrends MAN-759 - page 12
Pegasus PCI Motherboard User’s Guide 8 Step 5 Connect CPU Fan J6 (shown below) is a 3-pin berg that connects the fan on the CPU heat sink to the motherboard power. All Pentium II CPUs are shipped with a heat sink and a CPU fan . The connector from the CPU fan usually has three leads (has red, yellow, and black leads). Connect the Red lead to Pin ...
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American Megatrends MAN-759 - page 13
Chapter 1 Hardware Installation 9 Step 6 Install CPU The Pentium II CPU is on an Intel Slot1 adapter card. Insert the Slot1 card into the CPU card socket on the motherboard. See the motherboard drawing for the CPU Slot1 location. Warning Improper CPU installation can damage the CPU and the motherboard. You must follow the procedures in this section ...
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American Megatrends MAN-759 - page 14
Pegasus PCI Motherboard User’s Guide 10 Step 7 Install Memory, Continued Memory Display System memory is reported by AMIBIOS as it boots and again when the AMIBIOS System Configuration Screen is displayed just before the operating system boots. The memory displayed by AMIBIOS on the System Configuration Screen is 384 KB less than the total memory ...
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American Megatrends MAN-759 - page 15
Chapter 1 Hardware Installation 11 Step 8 Install the Motherboard The motherboard mounting hole pattern is shown on the following page. Standoffs and mounting screws are not supplied with the motherboard. The chassis manufacturer should supply these parts. Step Action 1 Place the chassis on an anti -static mat. Connect the chassis to ground to avoi ...
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American Megatrends MAN-759 - page 16
Pegasus PCI Motherboard User’s Guide 12 Step 9 Attach Cables Connectors The motherboard connectors are listed below. Connector Power supply connectors P1, P2, P3, and P14 Drain CMOS RAM power – J29 Keyboard connector J10 PS/2 mouse connector J1 Chassis intrusion LED – J23 External SMI connector – J30 Hardware Reset switch J27 Speaker J32 In ...
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American Megatrends MAN-759 - page 17
Chapter 1 Hardware Installation 13 Step 9 Attach Cables, Continued Connect Power Supply The power supply should match the physical configuration of the chassis. Make sure the power switch is off before assembly. Before attaching all components, make sure the proper voltage has been selected. Power supplies often can run on a wide range of voltages ...
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American Megatrends MAN-759 - page 18
Pegasus PCI Motherboard User’s Guide 14 Step 9 Attach Cables, Continued Power Connector Keys The power connectors are keyed to prevent incorrect installation. The keys on the connector must be cut to fit on some power supplies, as shown below. P2 Pinout Pin Description 1 Power Good (Orange wire) (Not used) 2 VCC (Red wire) 3 +12 Volts (Yellow wir ...
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American Megatrends MAN-759 - page 19
Chapter 1 Hardware Installation 15 Step 9 Attach Cables, Continued P14 Pinout Pin Description 1 5V 2 5V 3 5V 4 Ground 5 Ground 6 Ground P3 Pinout Pin Description 1 Ground 2 Ground 3 Ground 4 3.3V 5 3.3V 6 3.3V J29 Erase Password J29 is a 2-pin berg that can be used to erase the contents of CMOS RAM, where all system configuration information is sto ...
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American Megatrends MAN-759 - page 20
Pegasus PCI Motherboard User’s Guide 16 Step 9 Attach Cables, Continued J10 Keyboard Connector The keyboard connector is a 6-pin DIN socket. The pinout is shown below. Pin Assignments 1 Keyboard clock 2 Keyboard data 3, 6 Not used 4 Ground 5 VCC Connect Mouse Cable The mouse connector (J1 ) is a 10-pin berg. The mouse cable is the same as the ser ...
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American Megatrends MAN-759 - page 21
Chapter 1 Hardware Installation 17 Step 9 Attach Cables, Continued J27 Reset Switch Connector J27 is a 2-pin single-inline berg that is attached via a cable to an externally-mounted reset switch. When the reset switch is pressed, the system performs a hard reset. Pin 1 is ground and Pin 2 is Hard Reset. J32 Speaker Connector J32 is a 4-pin single - ...
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American Megatrends MAN-759 - page 22
Pegasus PCI Motherboard User’s Guide 18 Step 9 Attach Cables, Continued J25 Keyboard Lock J25 is a 5-pin single -inline berg that is attached via a cable to the keyboard lock connector (or separate keyboard lock and Power LED connectors). The computer chassis may not include the keyboard lock and Power LED on a single connector. The keyboard lock ...
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American Megatrends MAN-759 - page 23
Chapter 1 Hardware Installation 19 Step 9 Attach Cables, Continued Optional USB Cable You can only use a custom USB cable with this motherboard. You can order this USB cable (AMI part number CBLKIT-USB-1) from American Megatrends at 800-828-9264. Warning The pinout for the optional USB Cable Box is: Pin 1 Red VCC Pin 2 Green Data + Pin 3 White Data ...
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American Megatrends MAN-759 - page 24
Pegasus PCI Motherboard User’s Guide 20 Step 10 Connect I/O Onboard Adapters The Pegasus PCI motherboard has: • two serial ports (J2 and J3), • a parallel port (J8), • an IDE controller on the PCI bus (the primary IDE connector is J11 and the secondary IDE connector is J9), and • a floppy controller (J4). The serial and parallel port conn ...
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American Megatrends MAN-759 - page 25
Chapter 1 Hardware Installation 21 Step 10 Connect I/O, Continued J8 Parallel Port J8 is a 25-pin connector for a parallel port. The J8 pinout is shown below. Connect the 16-pin to DB25 cable provided with the motherboard to J8. The parallel port interface supports: • the standard Centronics-compatible parallel port, • the ECP (Extended Capabil ...
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American Megatrends MAN-759 - page 26
Pegasus PCI Motherboard User’s Guide 22 Step 10 Connect I/O, Continued J4 Floppy J4 is a 34-pin dual-inline berg. Connect the cable from the floppy drive to J4, as shown below. The onboard floppy controller cannot be used if a hard disk card with a floppy controller is installed. Choose Standard Setup and Peripheral Setup to configure the floppy ...
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American Megatrends MAN-759 - page 27
Chapter 1 Hardware Installation 23 Step 10 Connect I/O, Continued J4 Floppy Connector Pinout Pin Use Pin Use 1 GND 2 DENSE1 3 GND 4 N/C 5 GND 6 DRATE0 7 GND 8 -INDEX 9 GND 10 -MOTOR0 11 GND 12 -FDSEL1 13 GND 14 -FDSEL0 15 GND 16 -MOTOR1 17 GND 18 DIR 19 GND 20 - 21 GND 22 -WDATA 23 GND 24 -WGATE 25 GND 26 -TRK0 27 GND 28 -WRPROT 29 GND 30 -RDATA 31 ...
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American Megatrends MAN-759 - page 28
Pegasus PCI Motherboard User’s Guide 24 Step 10 Connect I/O, Continued IDE Drives Attach the IDE drives in the following manner. Choose Peripheral Setup in WINBIOS Setup to enable the onboard IDE controller. Cont’d ...
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American Megatrends MAN-759 - page 29
Chapter 1 Hardware Installation 25 Step 10 Connect I/O, Continued Attach IDE Cable J11 is the primary IDE (Integrated Drive Electronics) hard disk drive connector. Both the primary master and the primary slave IDE drives must be connected by cable to J11, as shown below. ...
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American Megatrends MAN-759 - page 30
Pegasus PCI Motherboard User’s Guide 26 Step 10 Connect I/O, Continued J11 Pinout J11 is the primary IDE connector. The J11 pinout is: Pin Use Pin Use 1 -RESET 2 GND 3 DATA7 4 DATA8 5 DATA6 6 DATA9 7 DATA5 8 DATA10 9 DATA4 10 DATA11 11 DATA3 12 DATA12 13 DATA2 14 DATA13 15 DATA1 16 DATA14 17 DATA0 18 DATA15 19 GND 20 KEY (N/C) 21 -REQ 22 GND 23 - ...
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American Megatrends MAN-759 - page 31
Chapter 1 Hardware Installation 27 Step 10 Connect I/O, Continued J9 Pinout J9 is the secondary IDE connector. The J9 pinout is: Pin Use Pin Use 1 -RESET 2 GND 3 DATA7 4 DATA8 5 DATA6 6 DATA9 7 DATA5 8 DATA10 9 DATA4 10 DATA11 11 DATA3 12 DATA12 13 DATA2 14 DATA13 15 DATA1 16 DATA14 17 DATA0 18 DATA15 19 GND 20 KEY (N/C) 21 -REQ 22 GND 23 -IOW 24 G ...
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American Megatrends MAN-759 - page 32
Pegasus PCI Motherboard User’s Guide 28 Step 12 Test and Configure Review the following points before powering up: • make sure that all adapter cards are seated properly, • make sure all connectors are properly installed, • make sure the CPU is seated properly, • make sure there are no screws or other foreign material on the motherboard, ...
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American Megatrends MAN-759 - page 33
Chapter 1 Hardware Installation 29 ...
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American Megatrends MAN-759 - page 34
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American Megatrends MAN-759 - page 35
Chapter 2 WINBIOS Setup 31 2 WINBIOS® Setup In ISA and EISA computers, the system parameters (such as amount of memory, type of disk drives and video displays, and many other elements) are stored in NVRAM (Non-Volatile Random Access Memory), also called CMOS RAM. Unlike the DRAM (dynamic random access memory) that is used for standard system memor ...
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American Megatrends MAN-759 - page 36
Pegasus PCI Motherboard User’s Guide 32 Using a Mouse with WINBIOS Setup WINBIOS Setup has a built-in mouse driver and can be accessed by either a serial mouse or PS/2-style mouse. WINBIOS Setup supports Microsoft- Compatible serial mice and all PS/2-type mice. The mouse click functions are: single click to change or select both global and curren ...
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American Megatrends MAN-759 - page 37
Chapter 2 WINBIOS Setup 33 WINBIOS Setup Menu The WINBIOS Setup main menu, shown below, is organized into four sections. Each of these sections corresponds to a section in this chapter. Each section contains several icons. Clicking on each icon activates a specific AMIBIOS function. The WINBIOS Setup main windows and related functions are described ...
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American Megatrends MAN-759 - page 38
Pegasus PCI Motherboard User’s Guide 34 Section 1 Setup Standard Setup Standard Setup options are displayed by choosing the Standard icon from the WINBIOS Setup main menu. All Standard Setup options are described in this section. Date/Time Select the Standard option. Select the D ate and Time icon. The current values for each category are display ...
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American Megatrends MAN-759 - page 39
Chapter 2 WINBIOS Setup 35 Standard Setup, Continued Pri Master, Pri Slave, Sec Master, Sec Slave Select one of these hard disk drive icons to configure the hard disk drive named in the option. Select Auto from the drive parameters screen to let AMIBIOS automatically configure the drive. A screen with a list of drive parameters appears. Click on OK ...
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American Megatrends MAN-759 - page 40
Pegasus PCI Motherboard User’s Guide 36 Standard Setup, Continued Entering Drive Parameters You can also enter the hard disk drive parameters. The drive parameters are: Parameter Description Type The number for a drive with certain identification parameters. Cylinders The number of cylinders in the disk drive. Heads The number of heads. Write Pre ...
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American Megatrends MAN-759 - page 41
Chapter 2 WINBIOS Setup 37 Standard Setup, Continued Hard Disk Drive Types Type Cylinders Heads Write Precompensation Landing Zone Sectors Capacity 1 306 4 128 305 17 10 MB 2 615 4 300 615 17 20 MB 3 615 6 300 615 17 31 MB 4 940 8 512 940 17 62 MB 5 940 6 512 940 17 47 MB 6 615 4 65535 615 17 20 MB 7 462 8 256 511 17 31 MB 8 733 5 65535 733 17 30 M ...
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American Megatrends MAN-759 - page 42
Pegasus PCI Motherboard User’s Guide 38 Advanced Setup Advanced Setup options are displayed by choosing the Advanced icon from the WINBIOS Setup main menu. All Advanced Setup options are described in this section. Typematic Rate This option sets the rate at which characters on the screen repeat when a key is pressed and held down. The settings ar ...
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American Megatrends MAN-759 - page 43
Chapter 2 WINBIOS Setup 39 Advanced Setup, Continued Hit <DEL> Message Display Set this option to Disabled to prevent Hit <DEL> if you want to run Setup from appearing when the system boots. The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are Enabled. Wait for <F1> If Error AMIBIOS POST runs system ...
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American Megatrends MAN-759 - page 44
Pegasus PCI Motherboard User’s Guide 40 Advanced Setup, Continued Pause on Config. Screen This option specifies the length of time that the AMIBIOS configuration screen appears. The settings are 2 sec, 3 sec, 4 sec, 5 sec, 6 sec, 7 sec, 8 sec, 9 sec, 10 sec, or Disabled . The Optimal and Fail-Safe default settings are Disabled. Boot Up Num Lock S ...
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American Megatrends MAN-759 - page 45
Chapter 2 WINBIOS Setup 41 Advanced Setup, Continued Floppy Access Control This option specifies the read/write access that is set when booting from a floppy drive. The settings are Read/Write or Read-Only. The Optimal and Fail-Safe default settings are Read/Write. Hard Disk Access Control This option specifies the read/write access that is set whe ...
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American Megatrends MAN-759 - page 46
Pegasus PCI Motherboard User’s Guide 42 Advanced Setup, Continued 1 st Boot Device This option sets the type of device for the first boot drives that the AMIBIOS attempts to boot from after AMIBIOS POST completes. The settings are Disabled, Network, Floptical, SCSI, CDROM, IDE-0, IDE-1, IDE-2, or IDE- 3. The Optimal and Fail-Safe default settings ...
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American Megatrends MAN-759 - page 47
Chapter 2 WINBIOS Setup 43 Advanced Setup, Continued L1/L2 Cache This option sets the type of caching algorithm used by the L1 internal cache memory on the CPU and the L2 secondary cache memory. The settings are WriteBack, WriteThru, or Disabled. The Optimal and Fail-Safe default settings are WriteBack. System BIOS Cacheable When set to Enabled, th ...
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American Megatrends MAN-759 - page 48
Pegasus PCI Motherboard User’s Guide 44 Advanced Setup, Continued Shadow C800,16K Shadow CC00,16K Shadow D000,16K Shadow D400,16K Shadow D800, 16K Shadow DC00,16K These options enable shadowing of the contents of the ROM area named in the option. ROM areas not used by ISA adapter cards are allocated to PCI adapter cards. The settings are: Setting ...
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American Megatrends MAN-759 - page 49
Chapter 2 WINBIOS Setup 45 Chipset Setup Chipset Setup options are displayed by choosing the Chipset icon from the WINBIOS Setup main menu. All Chipset Setup options are described in this section. PCI 2.1 Compliance Set this option to Enabled to program the chipset to comply with the PCI Version 2.1 specification. The settings are Enabled or Disabl ...
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American Megatrends MAN-759 - page 50
Pegasus PCI Motherboard User’s Guide 46 Chipset Setup, Continued DRAM ECC Mode This option sets the type of system memory checking. The settings are: Setting Description Disabled No error checking or error reporting is done. Level I Multibit errors are detected and reported as parity errors. Single-bit errors are corrected by the chipset. Correct ...
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American Megatrends MAN-759 - page 51
Chapter 2 WINBIOS Setup 47 Chipset Setup, Continued PCI VGA USWC/Video Frame Buffer Set this option to Enabled to enable the USWC memory attribute and improve video performance when a PCI video adapter is installed. However, VGA card drivers may not behave correctly when this option is set to Enabled. This option is only available if the PCI VGA ca ...
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American Megatrends MAN-759 - page 52
Pegasus PCI Motherboard User’s Guide 48 Chipset Setup, Continued ISA 16 Bit I/O Recovery This option specifies the length of the delay that is added to the CPU cycle between consecutive 16-bit I/O operations. The length of the delay is related to the CPU type and frequency. The settings are 1 Sysclock, 2 Sysclocks, 3 Sysclocks, 4 Sysclocks, or Di ...
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American Megatrends MAN-759 - page 53
Chapter 2 WINBIOS Setup 49 Power Management Setup The AMIBIOS Setup options described in this section are selected by choosing the Power Management Setup icon from the Setup section on the AMIBIOS Setup main menu. Standard Power Management Set this option to Enabled to enable standard power management, including SMI support. The settings are Enable ...
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American Megatrends MAN-759 - page 54
Pegasus PCI Motherboard User’s Guide 50 Power Management Setup, Continued DPMS Video Power Down Mode This option specifies the power state that a DPMS (Display Power Management Specification)-compliant video subsystem enters when AMIBIOS places it in a power saving state after the specified period of display inactivity has expired. The settings a ...
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American Megatrends MAN-759 - page 55
Chapter 2 WINBIOS Setup 51 Power Management Setup, Continued Standby Timeout This option specifies the length of a period of system inactivity while in Full power on state. When this length of time expires, the computer enters Standby power state. The settings are Disabled, 1 min. (minute), 2 min, 3 min., 4 min., 5 min., 6 min, 7 min., 8 min., 9 mi ...
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American Megatrends MAN-759 - page 56
Pegasus PCI Motherboard User’s Guide 52 Power Management Setup, Continued IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ15 When set to Monitor, these options enable event monitoring on the specified hardware interrupt request line. If set to Monitor and the computer is in a power saving state, AMIBIOS watches for activity on the specified IRQ lin ...
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American Megatrends MAN-759 - page 57
Chapter 2 WINBIOS Setup 53 PCI/PnP Setup Choose the PCI/PnP Setup icon from the WINBIOS Setup screen to display the PCI and Plug and Play Setup options, described below. PCI VGA Palette Snoop When this option is set to Enabled, multiple VGA devices operating on different buses can handle data from the CPU on each set of palette registers on every v ...
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American Megatrends MAN-759 - page 58
Pegasus PCI Motherboard User’s Guide 54 PCI/PnP Setup, Continued PCI Slot-1 Latency Timer PCI Slot-2 Latency Timer PCI Slot-3 Latency Timer PCI Slot-4 Latency Timer USB Device Latency Timer These options specify the latency timings (in PCI clocks) for PCI devices installed in the PCI expansion slots. The settings are 32, 64, 96, 128, 160, 192, 22 ...
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American Megatrends MAN-759 - page 59
Chapter 2 WINBIOS Setup 55 PCI/PnP Setup, Continued IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ14 IRQ15 These options specify the bus that the specified IRQ line uses. Use these options to reserve IRQs for legacy ISA adapter cards. The setting determines if AMIBIOS should remove an IRQ from the pool of available IRQs passed to devices that can b ...
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American Megatrends MAN-759 - page 60
Pegasus PCI Motherboard User’s Guide 56 PCI/PnP Setup, Continued DMA Channel 0 DMA Channel 1 DMA Channel 3 DMA Channel 5 DMA Channel 6 DMA Channel 7 These options allow you to specify the bus type used by each DMA channel. The settings are PnP or ISA. The Optimal and Fail-Safe default settings are PnP. Reserved ISA Card Memory Size This option sp ...
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American Megatrends MAN-759 - page 61
Chapter 2 WINBIOS Setup 57 Peripheral Setup Peripheral Setup options are displayed by choosing the Peripheral Setup icon from the WINBIOS Setup main menu. All Peripheral Setup options are described in this section. Onboard Floppy Controller Set this option to Enabled to enable the floppy drive controller on the motherboard. The settings are Enabled ...
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American Megatrends MAN-759 - page 62
Pegasus PCI Motherboard User’s Guide 58 Peripheral Setup, Continued Offboard PCI/ISA IDE Card This option specifies the expansion slot that the offboard PCI or ISA IDE Controller adapter card is installed in. The Onboard Primary/Secondary IDE option must be set to Disabled if this option is set to any value except Disabled. The settings are Absen ...
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American Megatrends MAN-759 - page 63
Chapter 2 WINBIOS Setup 59 Peripheral Setup, Continued Serial Port1 FIFO This option enables the FIFO buffer for the first serial port. The settings are Enabled or Disabled. The Optimal default setting is Disabled. The Fail-Safe default setting is Disabled. Caution Do not enable the Serial Port 1 FIFO option if a mouse is attached to COM1. Serial P ...
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American Megatrends MAN-759 - page 64
Pegasus PCI Motherboard User’s Guide 60 Peripheral Setup, Continued IR Transmission Mode This option specifies the infrared transmission method. This option only appears if the Onboard Serial Port2 option is not set to Auto or Disabled. The settings are Full (Duplex) or Half (Duplex) . The Optimal default setting is Full. There is no Fail-Safe de ...
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American Megatrends MAN-759 - page 65
Chapter 2 WINBIOS Setup 61 Peripheral Setup, Continued Parallel Port Mode This option specifies the parallel port mode. ECP and EPP are both bidirectional data transfer modes that adhere to the IEEE P1284 specifications. The settings are: Setting Description Normal The standard AT-compatible parallel port mode is used. EPP The parallel port can be ...
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American Megatrends MAN-759 - page 66
Pegasus PCI Motherboard User’s Guide 62 Section 2 Security Three icons appear in this part of the WINBIOS Setup screen: • Supervisor (Password), • User (Password), and • Anti-Virus. Two Levels of Passwords Both the Supervisor and the User icons configure password support. If you use both, the Supervisor password must be set first. The syste ...
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American Megatrends MAN-759 - page 67
Chapter 2 WINBIOS Setup 63 Setting a Password The password check option is enabled in Advanced Setup by choosing either Always (the password prompt appears every time the system is powered on) or Setup (the password prompt appears only when WINBIOS is run). The password is encrypted and stored in NVRAM. As shown on the above screen, you are prompte ...
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American Megatrends MAN-759 - page 68
Pegasus PCI Motherboard User’s Guide 64 Changing a Password Select the Supervisor or Use r icon from the Security section of the WINBIOS Setup main menu. Enter the password and press <Enter>. The screen does not display the characters entered. After the new password is entered, retype the new password as prompted and press <Enter>. If ...
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American Megatrends MAN-759 - page 69
Chapter 2 WINBIOS Setup 65 Section 3 Utility The icons in this section of the WINBIOS Setup main screen permit you to choose a different set of colors for the WINBIOS Setup screens and to display all WINBIOS Setup text displayed on the screen in a different language. If you choose to display the WINBIOS Setup screen text in a different language, th ...
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American Megatrends MAN-759 - page 70
Pegasus PCI Motherboard User’s Guide 66 Section 4 Default The icons in this section permit you to select a group of settings for all WINBIOS Setup options. Not only can you use these icons to quickly set system configuration parameters, you can choose a group of settings that have a better chance of working when the system is having configuration ...
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American Megatrends MAN-759 - page 71
Chapter 3 Programming the Flash ROM 67 3 Programming Flash ROM All versions of the Pegasus PCI motherboard use Flash EPROM to store the system BIOS. The advantage of Flash EPROM is the EPROM chip does not have to be replaced to update the BIOS. The end user can actually reprogram the BIOS, using a ROM file supplied by American Megatrends. Programmi ...
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American Megatrends MAN-759 - page 72
Pegasus PCI Motherboard User’s Guide 68 Programming the Flash ROM, Continued Bootblock Actions When you reprogram from system boot, the bootblock code: Step Action 1 Reads S759P.ROM from the root directory of the floppy disk in drive A:. 2 Erases the Flash EPROM. 3 Programs the Flash EPROM with the data read from the floppy disk in drive A:. 4 Ge ...
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American Megatrends MAN-759 - page 73
Chapter 3 Programming the Flash ROM 69 Programming the Flash ROM, Continued Beep Codes The bootblock code produces a series of beeps during Flash ROM programming to: signify completion of a step (as shown on the previous screen), or to signal an error. Error beeps are arranged in a coded sequence and have different meanings depending on when they o ...
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American Megatrends MAN-759 - page 74
Pegasus PCI Motherboard User’s Guide 70 Bootblock Code Checkpoint Codes Code Description E0h Verify the Boot Block BIOS checksum. Disable the internal cache, DMA, and interrupt controllers. Initialize the system timer. Start memory refresh. E1h Initialize the chipset registers. Set the BIOS size to 128K. Make the 512 KB base memory available. E2h ...
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American Megatrends MAN-759 - page 75
Chapter 4 Deleting a Password 71 4 Deleting a Password If you forget the passwords you set up through WINBIOS Setup, the only way you can restart the computer is to erase the system configuration information where the passwords are stored. System configuration data is stored in CMOS RAM, a type of memory that consumes very little power. Erase Old P ...
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American Megatrends MAN-759 - page 76
Pegasus PCI Motherboard User’s Guide 72 Avoid Static Electricity Static electricity can damage the motherboard and other computer components. Keep the motherboard in the anti-static bag until it is to be installed. Wear an anti-static wrist grounding strap before handling the motherboard. Make sure you stand on an anti-static mat when handling th ...
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American Megatrends MAN-759 - page 77
Chapter 4 Deleting a Password 73 A Specifications Engineering Specifications Temperature Ranges The following values are ambient temperatures inside the computer case. The board temperatures reflect the dual Pentium II CPU Heat dissipation requirements because they will be the hottest motherboard components. Temperature specifications vary with the ...
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