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Dell GX240 - page 1
www .dell.com support.dell.com Dell™ OptiPlex™ GX240 SERVICE MANUAL ...
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Dell GX240 - page 2
Notes, Notices, and Cautions NOTE: A NOTE indicates important informat ion that helps you make better use of your computer . NOTICE: A NOTICE indicates either potentia l damage to hardwa re or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury , or death. ______________ ...
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Dell GX240 - page 3
Contents 3 Contents 1 Before Y ou Begin Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 R ecommended T ools . . . . . . . . . . . . . . . . . . . . . . . 10 Precautionary Measures . . . . . . . . . . . . . . . . . . . . . . 10 2 Computer Cover Opening the Computer Cover . . . . . . . . . . . . . . . . . . . 14 Closing the C ...
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Dell GX240 - page 4
4 Contents Repla cing the Badge . . . . . . . . . . . . . . . . . . . . . . . . 31 Small Form-Factor Computer . . . . . . . . . . . . . . . . . 31 Small Desktop and Small Mini- T ower Computers . . . . . . . . 33 6 Chassis Intr usion Switch Removing the Chassis Intrusion Switch . . . . . . . . . . . . . . 36 Replacing the Chassis Intrusion Switch . ...
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Dell GX240 - page 5
Contents 5 Small Mini- T ower Computer . . . . . . . . . . . . . . . . . . . 64 Replacing the CD/DVD Drive . . . . . . . . . . . . . . . . . . . . 67 Small Form-Factor Computer . . . . . . . . . . . . . . . . . . 67 Small Desktop Computer . . . . . . . . . . . . . . . . . . . . 69 Small Mini- T ower Computer . . . . . . . . . . . . . . . . . . . 71 ...
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Dell GX240 - page 6
6 Contents 9 Expansion Card Cage (Small Desktop Computer Only) Removing the Expansion-Card Cage . . . . . . . . . . . . . . . 102 Replacing the Expansion-Card Cage . . . . . . . . . . . . . . . 102 Removing the PCI Riser Board . . . . . . . . . . . . . . . . . . 103 Replacing the PCI Riser Board . . . . . . . . . . . . . . . . . . 103 10 Front-P an ...
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Dell GX240 - page 7
Contents 7 14 P ower Supply Removing the P ower Supply . . . . . . . . . . . . . . . . . . . 132 Replacing the P ower Supply . . . . . . . . . . . . . . . . . . . 135 15 System Board System Board Components . . . . . . . . . . . . . . . . . . . . 138 Removing the System Board . . . . . . . . . . . . . . . . . . . 141 Replacing the System Board . . ...
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Dell GX240 - page 8
8 Contents ...
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Dell GX240 - page 9
www .dell.com | support.dell.com SECTION 1 Before Y ou Begin Getting Started Precautionary Measures ...
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Dell GX240 - page 10
10 Before Y ou Begin www .dell.com | support.dell.com Getting Started This section provides procedures for r emoving and r eplacing the components, assemblies, and subass emblies in the Dell™ OptiPlex™ GX240 small form-factor , small desk top, and small mini-tower computers. Unless otherwise noted, each pro cedure assumes that the following con ...
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Dell GX240 - page 11
Before Y ou Begin 11 3 Disconnect the computer and device s from their AC power sources. Also , disconnect any telephone or telecommunication lines from the computer . Doing so reduces the pot ential for personal injury or shock. If you are disconnecting a device fr om the computer or ar e r emoving a component from the system board, wait 15 to 30 ...
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Dell GX240 - page 12
12 Before Y ou Begin www .dell.com | support.dell.com ...
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Dell GX240 - page 13
www .dell.com | support.dell.com SECTION 2 Computer Cover Opening the Computer Cover Closing the Computer Cover ...
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Dell GX240 - page 14
14 Computer Cover www .dell.com | support.dell.com Opening the Computer Cover NOTE: If your computer is on a stand, remove the stand before you open the computer cover . Small F orm-F actor Computer 1 Security cable slot 2 P adlock ring 3 Release buttons (one on each side) 3 1 2 ...
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Dell GX240 - page 15
Computer Cover 15 Small Desktop Computer 1 P adlock ring 2 Release buttons (one on each side) 2 1 ...
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Dell GX240 - page 16
16 Computer Cover www .dell.com | support.dell.com Small Mini- T ower Computer 1 Remove the padlock from the padlock ring, if present. NOTICE: Do not open the cover if the computer is on the edge of a desk or table. Doing so may cause the computer to tip over and fall. Make sure that the computer is situated so that there is at least 12 inches of d ...
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Dell GX240 - page 17
Computer Cover 17 Closing the Computer Cover 1 Check all cable connections, especially those that might have come loose during your work. F o ld cables ou t of the way so that they do not catch on the computer cover . Make su re cables ar e not routed over the drive cage—they will prevent the cover from closing properly . 2 Check to see that no t ...
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Dell GX240 - page 18
18 Computer Cover www .dell.com | support.dell.com ...
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Dell GX240 - page 19
www .dell.com | support.dell.com SECTION 3 Inside the Computer Key Components Computer Cables ...
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Dell GX240 - page 20
20 Inside the Computer www .dell.com | support.dell.com K ey Components NOTE: User ser vice access points are color - coded green. Small F orm-F actor Computer 1 Hard drive 7 System board 2 3.5-inch floppy drive 8 P ower supply 3 CD/D VD drive 9 AC power connector 4 Cover release buttons (2) 10 I/O ports and connectors 5 Internal speaker 11 P adloc ...
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Dell GX240 - page 21
Inside the Computer 21 Small Desktop Computer 1 Cover release buttons (2) 8 AC power connector 2 Hard drive 9 P adlock ring 3 Internal speaker 10 I/O ports and connectors 4 Chassis intrusion switch 11 Heat sink and blower assembly 5 Expansion-card cage 12 System board 6 P ower supply 13 3.5-inch floppy drive 7 Expansion-card slots 14 CD/D VD drive ...
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Dell GX240 - page 22
22 Inside the Computer www .dell.com | support.dell.com Small Mini- T ower Computer 1 Cover release buttons (2) 8 AC power connector 2 Hard drive 9 P adlock ring 3 Internal speaker 10 Microprocessor and airflow shroud 4 Chassis intrusion switch 11 P ower supply 5 System board 12 3.5-inch floppy drive 6 Expansion-card slots 13 CD/DVD drive 7 I/O por ...
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Dell GX240 - page 23
Inside the Computer 23 Computer Cables Small F orm-F actor Computer 1 CD/DVD drive data cable 6 IDE data cable (hard drive) 2 Floppy drive data cable 7 Input/output cable 3 Control panel cable 8 Input/output audio cable 4 CD/DVD drive power cable 9 Microprocessor power cable 5 IDE drive power cable (hard drive) 10 CD/D VD audio cable 13 24 6 5 7 8 ...
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Dell GX240 - page 24
24 Inside the Computer www .dell.com | support.dell.com Small Desktop Computer 1 CD/D VD drive audio cable 5 Input/output cable 2 CD/D VD drive data cable 6 Input/output audio cable 3 Floppy drive data cable 7 IDE data cable (hard drive) 4 Control panel cable 12 4 36 7 5 ...
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Dell GX240 - page 25
Inside the Computer 25 Small Mini- T ower Computer 1 CD/D VD drive power cable 6 IDE drive power cable (hard drive) 2 CD/D VD drive audio cable 7 IDE drive data cable (hard drive) 3 CD/D VD drive data cable 8 Input/output cable 4 Floppy drive power cable 9 Input/output audio cable 5 Floppy drive data cable 1 3 2 45 7 6 8 9 ...
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Dell GX240 - page 26
26 Inside the Computer www .dell.com | support.dell.com Cable Colors Device Color Hard drive Blue Floppy drive Black CD/DVD drive Orange USB Gray A T A, IDE, or EIDE drive Green Control panel Y ellow CD/DVD audio Blue Computer audio Black ...
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Dell GX240 - page 27
www .dell.com | support.dell.com SECTION 4 Batter y Removing the Battery Replacing the Battery ...
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Dell GX240 - page 28
28 Batter y www .dell.com | support.dell.com R emoving the Battery CAUTION: There is a danger of the new battery exploding if it is incorrectly installed. Replace th e battery only with the same or equivalent type recommended by the manufacturer . Discard used batteries according to the manufacturer ’s instructions. 1 If possible, enter system se ...
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Dell GX240 - page 29
www .dell.com | support.dell.com SECTION 5 Badge Removing the Badge Replacing the Badge ...
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Dell GX240 - page 30
30 Badge www .dell.com | support.dell.com R emoving the Badge Small F orm-F actor Computer 1 Open the computer cover . 2 Using a flat-blade screwdriver , r eleas e the tabs from the inside of the computer and remove the plastic computer cover from the metal component. Computer Cover Removal 3 Remove the accent door by pressing the middle of the doo ...
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Dell GX240 - page 31
Badge 31 Small Desktop and Small Mini- T ower Computers 1 Open the front USB door . 2 F rom inside the door , push in the two tabs on either side of the badge to release the badge. 3 P ress on the badge until it is fr eed. R eplacing the Badge Small F orm-F actor Computer 1 Replace the plastic computer cover . Make sur e that the two metal hooks an ...
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Dell GX240 - page 32
32 Badge www .dell.com | support.dell.com Computer Cover Replacement T o help replace the plastic computer cover , remove the accent door and front mask from the plastic computer cover: a Remove the front mask by r eleasin g the tabs on the inside of the plastic computer cover . b Remove the accent door by press ing the middle of the door while lif ...
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Dell GX240 - page 33
Badge 33 Front Mask and Accent Door R emoval 2 Replace the badge by pressing it in to place, ensuring that the two tabs click, securing it into position. Small Desktop and Small Mini- T ower Computers Replace the badge by pressing it into pl ace, ensuring that the two tabs click, securing it into position. 1 Accent door 2 F ront mask 2 1 ...
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Dell GX240 - page 34
34 Badge www .dell.com | support.dell.com ...
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Dell GX240 - page 35
www .dell.com | support.dell.com SECTION 6 Chassis Intrusion Switch Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch Resetting the Chassis Intrusion Detector ...
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Dell GX240 - page 36
36 Chassis Intr usion Switch www .dell.com | support.dell.com R emoving the Chassis Intrusion Switch Small F orm-F actor Computer ...
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Dell GX240 - page 37
Chassis Intr usion Switch 37 Small Desktop Computer ...
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Dell GX240 - page 38
38 Chassis Intr usion Switch www .dell.com | support.dell.com Small Mini- T ower Computer 1 Disconnect the chassis intrusion sw itch cable connector from the control panel on the front of the chassis. Note the routing of the chassis intru sion cable as you remove it from the chassis. Chassis hooks may hold the cable in place inside the chassis. 2 S ...
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Dell GX240 - page 39
Chassis Intr usion Switch 39 R esetting the Chassis Intrusion Detector 1 Enter system setup by pressing <F2> during the computer's POST . NOTE: For instructions on using system setup, see the User's Guide . 2 Under the System Security tab, reset the Chassis Intrusion option by pressing the left- or right-arrow k ey to select R eset ...
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Dell GX240 - page 40
40 Chassis Intr usion Switch www .dell.com | support.dell.com ...
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Dell GX240 - page 41
www .dell.com | support.dell.com SECTION 7 Control Pa n e l ...
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Dell GX240 - page 42
42 Control P a nel www .dell.com | support.dell.com R emoving the Control P anel Small F orm-F actor Computer 1 Open the computer cover . 2 Using a flat-blade screwdriver , r eleas e the tabs from the inside of the computer and remove the plastic computer cover from the metal component. Computer Cover Removal 1 T abs (two on each side) 1 ...
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Dell GX240 - page 43
Control P anel 43 Control Panel R emoval 3 Remove the metal control-panel shield. 4 Remove the screw that holds the control panel to the computer . Small Desktop Computer 1 Remove the front I/O panel . ...
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Dell GX240 - page 44
44 Control P a nel www .dell.com | support.dell.com Control Panel R emoval 2 Remove the screw holding the control panel to the computer , and pull the panel up and away from the computer . Small Mini- T ower Computer 1 Lay the computer on its rig ht side and open the cover . 2 Remove the top and bottom panels of the computer by r eleasing the eight ...
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Dell GX240 - page 45
Control P anel 45 Front Bezel T abs—Small Mini- T ower Computer b Close the cover and remove the front bezel. 1 T op panel 2 Bottom panel 3 F ront-panel tabs (3) 4 T op-panel tabs (8) 3 1 2 4 ...
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Dell GX240 - page 46
46 Control P a nel www .dell.com | support.dell.com Control Panel R emoval 4 Remove the screw holding the control panel to the chassis, and pull the panel up and away from the chassis. R eplacing the Control P anel Small F orm-F actor Computer 1 Replace the control panel an d the control-panel shield. 2 Replace the plastic computer cover . Make sur ...
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Dell GX240 - page 47
Control P anel 47 Computer Cover Replacement T o help replace the plastic computer cover , remove the accent door and front mask from the plastic computer cover: a Remove the front mask by releasing the tabs on the inside of the plastic computer cover . b Remove the accent door by pressi ng the middle of the door while lifting away the sides of the ...
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Dell GX240 - page 48
48 Control P a nel www .dell.com | support.dell.com Front Mask and Accent Door R emoval—Small F orm-F actor Computer Small Desktop Computer 1 Replace the control panel and secure it to the computer by r eplacing the screw you r emoved in step 2 of the r emoval procedur e. 2 Replace the front I/O panel . Small Mini- T ower Computer F o llow the ? ...
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Dell GX240 - page 49
www .dell.com | support.dell.com SECTION 7 Drives Removing the Floppy Drive Replacing the Floppy Drive Removing the CD/DVD Drive Replacing the CD/DVD Drive Removing the Hard Drive Replacing the Hard Drive Adding a Second Hard Drive — Small Mini-Tower Computer ...
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Dell GX240 - page 50
50 Drives www .dell.com | support.dell.com R emoving the Floppy Drive Small F orm-F actor Computer 1 Disconnect the floppy-drive cable from the system board. 2 Remove the power cable from the interposer board. 3 Disconnect the CD/DVD drive cable and the power cable from the CD/DVD drive. 4 Remove or raise the drive by pressi ng the gr een tabs on e ...
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Dell GX240 - page 51
Drives 51 b T o release the floppy-drive cabl e from the connector , slide the lever until it is fully extended , and then lift the cable away . ...
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Dell GX240 - page 52
52 Drives www .dell.com | support.dell.com Removing the Floppy-Drive Cable or 1 2 1 2 ...
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Dell GX240 - page 53
Drives 53 6 Remove the floppy drive from its sled by pulling the sled tab out while pushing the drive up, and then sliding the drive out of the sled. Small Desktop Computer 1 Disconnect the power cable and the floppy-drive data cable from the drive. 2 Disconnect the data cable from the floppy-drive connector on the system board. Cable Removal 1 Flo ...
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Dell GX240 - page 54
54 Drives www .dell.com | support.dell.com 3 P ress inwar d on the two tabs on the sides of the drive bay to disengage the drive from the computer . 4 Slide the drive upward and r e move it from the computer . Floppy-Drive Removal 5 If the replacement drive does not have the brack et rails attached, remove the rails from the old drive by r emoving ...
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Dell GX240 - page 55
Drives 55 Small Mini- T ower Computer 1 Disconnect the power cable and the floppy-drive data cable from the drive. 2 Disconnect the data cable from the floppy-drive connector on the system board. Cable Removal R eplacing the Floppy Drive Small F orm-F actor Computer 1 Snap the replacement drive into the sled and ensur e that it is secur e. 1 P ower ...
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Dell GX240 - page 56
56 Drives www .dell.com | support.dell.com 2 Connect the interposer boar d to the floppy drive. a Slide the floppy-drive cable into the connector . b Close the lever so that the cable is secure in the connector . c Line up the hole on the bottom of the interposer board with the notch on the connector , and snap the interposer board onto the drive. ...
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Dell GX240 - page 57
Drives 57 Attaching the Floppy-Drive Data Cable 1 3 4 2 or 1 3 4 2 ...
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Dell GX240 - page 58
58 Drives www .dell.com | support.dell.com 4 Attach the power cable to the int erposer board on the floppy drive. 5 Attach the CD/DVD drive cable an d the power cable to the CD/DVD drive. 6 Connect the floppy-drive cable to t he DSKT connector on the system board. 7 Check all cable connections, and fold cables out of the way to provide airflow for ...
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Dell GX240 - page 59
Drives 59 Cable Replacement Small Mini- T ower Computer 1 If the replacement drive does not have the brack et rails attached, remove the rails from the old driv e by r emoving the two scr ews that secure each rail to the drive. Atta ch the brack et to the new drive by aligning the screw holes on the dr ive with the scr ew holes on the bracket rails ...
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Dell GX240 - page 60
60 Drives www .dell.com | support.dell.com Cable Replacement R emoving the CD/DVD Drive Small F orm-F actor Computer 1 Remove the interposer board from the CD/D VD drive. 1 P ower cable 2 Floppy-drive data cable 3 Floppy-drive connector 1 2 3 ...
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Dell GX240 - page 61
Drives 61 Interposer Board Removal 2 P ress inwar d on the two tabs on the sides of the drive to disengage the drive from the computer . 3 Slide the drive upward and r e move it from the computer . 1 Interposer board 1 or 1 ...
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Dell GX240 - page 62
62 Drives www .dell.com | support.dell.com CD/DVD Drive Removal Small Desktop Computer 1 Remove the data, power , and audio cables from the drive. ...
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Dell GX240 - page 63
Drives 63 Cable Removal 2 P ress inwar d on the two tabs on the sides of the drive bay to disengage the drive from the computer . 3 Slide the drive upward and r e move it from the computer . 4 If the replacement drive does not have the brack et rails attached, remove the rails from the old driv e by r emoving the two scr ews that secure each rail t ...
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Dell GX240 - page 64
64 Drives www .dell.com | support.dell.com Drive Bracket Rail R emoval Small Mini- T ower Computer 1 Remove the data, power , and audio cables from the drive. ...
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Dell GX240 - page 65
Drives 65 Cable Removal 2 P ress inwar d on the two tabs on the sides of the drive bay to disengage the drive from the computer . 3 Slide the drive upward and r e move it from the computer . 1 P ower cable 2 Audio cable 3 Data cable 4 Drive connector 2 1 3 4 ...
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Dell GX240 - page 66
66 Drives www .dell.com | support.dell.com CD/DVD Drive Removal 4 If the replacement drive does not have the brack et rails attached, remove the rails from the old drive by r emoving the two scr ews that secure each rail to the drive. Drive Bracket Rail R emoval ...
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Dell GX240 - page 67
Drives 67 R eplacing the CD/DVD Drive Small F orm-F actor Computer 1 Gently slide the drive into place unt il the tabs securely click into position. 2 Connect the interposer board to the CD/D VD drive. a Ensure that the interposer boar d tab fits secur ely under the notch on the inside of the cover . b Attach the power and audio cables to the inter ...
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Dell GX240 - page 68
68 Drives www .dell.com | support.dell.com Interposer Board Replacement 1 3 2 or 1 3 2 ...
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Dell GX240 - page 69
Drives 69 If your computer came with a CD drive, use the spare connector on the existing interface cable. Otherw ise, use the IDE interface cable provided in the drive kit. 3 Connect the data, power , and audio cables to the drive. 4 Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 5 If t ...
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Dell GX240 - page 70
70 Drives www .dell.com | support.dell.com Cable Replacement If your computer came with an ID E CD drive, use the spare connector on the existing interface cable. Ot herwise, use the IDE interface cable provided in the drive kit. 3 If you are installing a drive that ha s its own controller car d, install the controller card in an e xpansion slot. 4 ...
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Dell GX240 - page 71
Drives 71 5 If the drive bay was previously empt y , remove the front-panel insert from the front panel. a Release the insert tabs from inside the chassis. b Remove the insert by pressing it until it pops fr ee. c Replace the front-panel piece by snapping it into place. Small Mini- T ower Computer 1 Gently slide the drive into place unt il the tabs ...
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Dell GX240 - page 72
72 Drives www .dell.com | support.dell.com If your computer came with an ID E CD drive, use the spare connector on the existing interface cable. Ot herwise, use the IDE interface cable provided in the drive kit. 3 If you are installing a drive that ha s its own controller car d, install the controller card in an e xpansion slot. 4 Check all cable c ...
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Dell GX240 - page 73
Drives 73 Cable Removal 2 P ress in on the tabs on each side of the drive, and slide the drive toward the I/O panel until the notch in the drive rail allows the drive to be removed from the computer . 1 P ower cable 2 Hard-drive cable 1 2 ...
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Dell GX240 - page 74
74 Drives www .dell.com | support.dell.com Hard Drive Removal 3 If the replacement drive does not have the brack et rails attached, remove the rails from the old drive by r emoving the two scr ews that secure each rail to the drive. Small Desktop Computer 1 The hard drive may or may not have a plastic shroud cover . (Operating the computer without ...
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Dell GX240 - page 75
Drives 75 NOTE: Y our computer’s hard drive may or may not have a plastic shroud cover . Operating the computer without a hard- drive shroud does not affect its per for mance. Hard-Drive Shroud Removal 2 Disconnect the power and hard-drive data cables from the drive. ...
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Dell GX240 - page 76
76 Drives www .dell.com | support.dell.com Cable Removal 3 P ress in on the tabs on each side of the drive and slide it up and out. 1 Hard-drive cable 2 P ower cable 1 2 ...
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Dell GX240 - page 77
Drives 77 Hard Drive Removal 4 If the replacement drive does not have the brack et rails attached, remove the rails from the old driv e by r emoving the two scr ews that secure each rail to the drive. Small Mini- T ower Computer 1 Disconnect the power and hard-drive data cables from the drive. 1 Ta b s ( 2 ) 1 ...
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Dell GX240 - page 78
78 Drives www .dell.com | support.dell.com Cable Removal 2 P ress in on the tabs on each side of the drive and slide it up and out. 1 P ower cable 2 Hard-drive cable 1 2 ...
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Dell GX240 - page 79
Drives 79 Hard Drive Removal 3 If the replacement drive does not have the brack et rails attached, remove the rails from the old driv e by r emoving the two scr ews that secure each rail to the drive. R eplacing the Hard Drive NOTICE: T o avoid possibly damaging the drive by ESD, ground yourself by touching an unpainted metal sur f ace on the back ...
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Dell GX240 - page 80
80 Drives www .dell.com | support.dell.com Small F orm-F actor Computer Hard Drive Replacement 1 P ower cable 2 IDE data cable 3 IDE1 connector 3 1 2 ...
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Dell GX240 - page 81
Drives 81 Small Desktop Computer Hard Drive Replacement 1 P ower cable 2 IDE data cable 3 IDE1 connector 3 1 2 ...
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Dell GX240 - page 82
82 Drives www .dell.com | support.dell.com Small Mini- T ower Computer Hard Drive Replacement 3 On the small desktop computer , if your computer has a hard-drive shroud, replace the shroud by insert ing the two tabs on the bottom into the holes in the computer an d snapping the top into place. (Operating the computer without a hard-drive shroud doe ...
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Dell GX240 - page 83
Drives 83 T o locate the system board interface connector (IDE1), see " System Board Components ." 5 If the drive you just installed is t he primary drive, insert a bootable floppy disk into the floppy drive. 6 T urn on the computer . 7 Enter system setup and update the appropriate P rimary Drive option, 0 or 1 . See the User's Guide ...
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Dell GX240 - page 84
84 Drives www .dell.com | support.dell.com 4 Remove the two green plastic drive rails inside the lower har d-drive bay . These rails are not attached with scr e ws to the inside of the hard-drive bay . T o remove the rails, gently pu ll the rails up and out of the bay . 5 Attach the rails to the hard drive using the two scr ews attached to the rail ...
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Dell GX240 - page 85
Drives 85 Second Hard Drive Installed NOTICE: Match the colored strip on the ca ble with pin 1 on the drive. Locate the extra connector on the driv e cable that is attached to the first hard drive and attach the connector to the second har d drive. 1 Rail tabs (2) 2 Second har d drive in upper bay 3 F irst har d drive in lower bay 4 Hard d rive cag ...
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Dell GX240 - page 86
86 Drives www .dell.com | support.dell.com ...
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Dell GX240 - page 87
www .dell.com | support.dell.com SECTION 8 Expansion Card Expansion Card Types Removing an Expansion Card Replacing an Expansion Card Removing an AGP Graphics Card Replacing an AGP Graphics Card ...
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Dell GX240 - page 88
88 Expansion Card www .dell.com | support.dell.com Expansion Card T ypes Y our computer provides expansion slots for the following cards: • In the small form-factor computer , one low-profile, 32-bit, 33-MHz PCI card. • In the small desktop computer , up to two 32-bit, 33-MHz PCI cards. • In the small mini-tow er computer , up to fo ur 32-bit ...
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Dell GX240 - page 89
Expansion Card 89 NOTE: Before disconnecting a device from the computer or removing a component from the system board, verify that the auxiliar y power light on the system board is off . F or the location of this light, see " System Board Components ." Expansion Cards R emoving an Expansion Card CAUTION: Use a wrist grounding strap as exp ...
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Dell GX240 - page 90
90 Expansion Card www .dell.com | support.dell.com 2 P ress the hinged lever on the e xpansion car d retention arm and raise the retention arm. 3 Grasp the card by its outside corners and ease it out of its connector on the riser board. 4 If you are r emoving the car d permanently , install a metal filler brack et over the empty card-slot opening. ...
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Dell GX240 - page 91
Expansion Card 91 3 P ress the lever on the e xpansion car d retention arm and raise the retention arm. Expansion Card Removal 4 Grasp the card by its outside corners and ease it out of its connector on the riser board. 5 If you are r emoving the car d perma nently , install a metal filler bracket over the empty card-slot opening. Small Mini- T owe ...
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Dell GX240 - page 92
92 Expansion Card www .dell.com | support.dell.com Small Mini- T ower Computer 3 Grasp the card by its outside corners and ease it out of its connector on the riser board. 4 If you are r emoving the car d permanently , install a metal filler brack et over the empty card-slot opening. R eplacing an Expansion Card Small F orm-F actor , Desktop, and M ...
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Dell GX240 - page 93
Expansion Card 93 CAUTION: Some network cards automatically start the computer when they are connected. T o guard against electrical shock, be sure to unplug the computer from its electrical outlet before installing any expansion cards. 1 P repar e the e xpansion car d for installation. See the documentation that came with the expansion car d for i ...
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Dell GX240 - page 94
94 Expansion Card www .dell.com | support.dell.com Expansion Card Connection 4 Before lowering the r etention arm, mak e sur e of the following: • T ops of all expansion car ds and fi ller brackets ar e flush with the alignment bar . • Notch in the top of the card or fill er brack et fits around the alignment guide. P ress the arm into place, s ...
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Dell GX240 - page 95
Expansion Card 95 Retention Arm Closure 5 Reconnect the computer and devices to their electrical outlets and turn them on. NOTE: Af ter you open and close the cover , the chassis intr usion detector causes the following message to be displayed at the next computer start-up: ALERT! Cover was pr eviously removed. See " Resetting the Chassis Intr ...
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Dell GX240 - page 96
96 Expansion Card www .dell.com | support.dell.com R emoving an AGP Graphics Card Small F orm-F actor Computer 1 Remove the filler bracket by raisin g the hinged lever and then sliding the bracket up. AGP Slot Filler Bracket Removal 2 On the AGP card clip, pr ess t he lever toward the PCI slot 1. 3 P ull the AGP card up and out of the AGP car d cli ...
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Dell GX240 - page 97
Expansion Card 97 AGP Slot Filler Bracket Removal 3 On the AGP card clip, pr ess the lever towar d the PCI slot 1. 4 P ull the AGP car d up and out of the AGP card clip. Small Mini- T ower Computer 1 Remove the filler bracket by raising the hinged lever and then sliding the bracket up. 1 Hinged lever 2 Indented tab 1 2 ...
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Dell GX240 - page 98
98 Expansion Card www .dell.com | support.dell.com AGP Slot Filler Bracket Removal 2 On the AGP card clip, pr ess the lever towar d PCI slot 1. 3 P ull the AGP card up and out of the AGP car d clip. 1 Hinged lever 1 ...
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Dell GX240 - page 99
Expansion Card 99 R eplacing an AGP Graphics Card Small F orm-F actor , Small Desktop, and Small Mini- T ower Computers 1 P ress the AGP car d clip lever , ensuring that the tab on the AGP card clip lever fits into the notch on the front end of the AGP card. 2 Secure the AGP car d by lowering the hinged lever on the back panel. 1 AGP card 4 AGP car ...
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Dell GX240 - page 100
100 Expansion Card www .dell.com | support.dell.com ...
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Dell GX240 - page 101
www .dell.com | support.dell.com SECTION 9 Expansion- Card Cage (Small Desktop Computer Only) Removing the Expansion-Card Cage Replacing the Expansion-Card Cage Removing the PCI Riser Board Replacing the PCI Riser Board ...
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Dell GX240 - page 102
102 Expansion-Card Cage (Sma ll Desktop Computer Only) www .dell.com | support.dell.com R emoving the Expansion-Card Cage CAUTION: Use a wrist grounding strap as explained in " Precautionary Measures ." 1 Examine any cables connected to expansion car ds through the back- panel openings, and disconnect any cables that will not reach the ex ...
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Dell GX240 - page 103
Expansion-Card Cage (Small Desktop Computer Only) 103 Expansion-Card Cage Replacement 3 Replace and reconnect any cables you r emoved in steps 1 and 2 of the previous procedur e. R emoving the PCI Riser Board NOTICE: T o avoid damage to the expansion cards or the system board by ESD, ground yourself by touching an unpainted metal sur face on the ba ...
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Dell GX240 - page 104
104 Expansion-Card Cage (Sma ll Desktop Computer Only) www .dell.com | support.dell.com ...
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Dell GX240 - page 105
www .dell.com | support.dell.com SECTION 10 F ront-P anel Inserts Removing Front-Panel Inserts Replacing Front-Panel Inserts ...
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Dell GX240 - page 106
106 Front-P anel Inserts www .dell.com | support.dell.com R emoving F ront-P anel Inserts 1 On the small form-factor and smal l desktop computers, perform the following steps. a F ace the front of the computer and use your fingers to remove the front-panel cover . b P ress on the insert until it pops fr ee of the front-panel cover . 2 On the small ...
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Dell GX240 - page 107
Front-P anel Inserts 107 Small F orm-F actor Computer ...
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Dell GX240 - page 108
108 Front-P anel Inserts www .dell.com | support.dell.com Small Desktop Computer ...
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Dell GX240 - page 109
Front-P anel Inserts 109 Small Mini- T ower Computer ...
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Dell GX240 - page 110
110 Front-P anel Inserts www .dell.com | support.dell.com R eplacing F ront-P anel Inserts T o replace a front-panel insert, follow t he appropriate procedur e, in reverse, in " Removing Front-Panel Inserts ." ...
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Dell GX240 - page 111
www .dell.com | support.dell.com SECTION 11 I/O P anel Removing the Front I/O Panel Replacing the Front I/O Panel ...
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Dell GX240 - page 112
112 I/O P anel www .dell.com | support.dell.com R emoving the F ront I/O P anel Small F orm-F actor Computer 1 T o access the mounting screw that holds the front I/O panel to the computer , remove the hard drive . Front I/O P anel R emoval 2 Disconnect the control panel cable from the control panel connector on the I/O panel. 1 F ront I/O cable 2 F ...
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Dell GX240 - page 113
I/O P anel 113 3 Disconnect the front I/O cable from the front-panel connector on the system board (see " System Board Components " for the location of the front-panel connector and see " Small Form-Factor Computer " for the location of the control panel and I/O cables). 4 Remove all cables that are connected to the front I/O pa ...
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Dell GX240 - page 114
114 I/O P anel www .dell.com | support.dell.com Front I/O P anel R emoval 5 Remove all cables that are connected to the front I/O panel. 6 Remove the mounting screw that se cur es the front I/O panel to the computer . 7 Remove the front I/O panel from the computer . 1 Control panel cable 2 F ront I/O cable 3 F ront audio cable 4 Mounting screw 2 3 ...
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Dell GX240 - page 115
I/O P anel 115 Small Mini- T ower Computer Front I/O P anel R emoval 1 Disconnect the control panel cable from the control panel connector on the I/O panel. 2 Disconnect the front I/O cable from the front-panel connector on the system board (see " System Board Components " for the location of the front-panel connector and see " Small ...
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Dell GX240 - page 116
116 I/O P anel www .dell.com | support.dell.com Note the routing of the control panel cable as you remove it from the computer so that you can replace it corr ectly . 3 Remove all cables that are connected to the front I/O panel. 4 F rom inside the chassis cover , remo ve the mounting scr ew that secur es the front I/O panel to the chassis. 5 Remov ...
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Dell GX240 - page 117
www .dell.com | support.dell.com SECTION 12 Memor y Removing a Memory Module Replacing a Memory Module ...
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Dell GX240 - page 118
118 Memor y www .dell.com | support.dell.com R emoving a Memory Module CAUTION: Use a wrist grounding strap as explained in " Precautionary Measures ." 1 P ress the securing clips outwar d si multaneously until the memory module disengages and pops out slightly from the socket. Memory Module Removal 2 Lift the module away from the socket. ...
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Dell GX240 - page 119
Memor y 119 Memory Module Replacement 1 2 3 1 Socket 2 Slot 3 Securing clip ...
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Dell GX240 - page 120
120 Memor y www .dell.com | support.dell.com ...
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Dell GX240 - page 121
www .dell.com | support.dell.com SECTION 13 Microprocessor Removing the Cooling Fan/Heat-Sink Assembly and Microprocessor Replacing the Cooling Fan/Heat-Sink Assembly and Microprocessor ...
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Dell GX240 - page 122
122 Microprocessor www .dell.com | support.dell.com R emoving the Cooling F an/Heat-Sink Assembly and Microprocessor CAUTION: Use a wrist grounding strap as explained in " Precautionary Measures ." CAUTION: The microprocessor and heat sink assembly can get extremely hot. T o avoid burns, be sure both have had sufficient time to cool befo ...
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Dell GX240 - page 123
Microprocessor 123 Heat Sink Removal—Small Mini- T ower Computer 5 On the small form-factor and small desktop computers, remove the securing clips to remove the heat sink/blower assembly . The heat sink is attached to the blower . 1 Securing latches (2) 4 Retention base 2 Securing clips (2) 5 ZIF socket 3 Heat sink 6 Ta b s ( 3 ) 1 2 3 4 5 6 ...
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Dell GX240 - page 124
124 Microprocessor www .dell.com | support.dell.com Heat Sink/Blower Assembly Removal—Small F orm-F actor and Small Desktop Computers NOTICE: Before you remove the heat sink, ge ntly rock the heat sink, and then slightly twist it as you lif t it from the system board. 6 Lift the heat sink or heat sink/b lower assembly away from the microprocessor ...
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Dell GX240 - page 125
Microprocessor 125 NOTICE: Do not discard the original heat si nk and securing clips unless you are installing a microprocessor upgrade kit from Dell. If you are not installing a microprocessor upgrade kit from Dell, reuse the original heat sink, blower , and securing clips when installing your new microprocessor . NOTICE: Lay the heat sink down wi ...
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Dell GX240 - page 126
126 Microprocessor www .dell.com | support.dell.com 10 Remove the microprocessor from the socket. 11 Leave the release lever extended so th at the sock et is re ady for the new microprocessor . R eplacing the Cooling F an/Heat-Sink Assembly and Microprocessor CAUTION: Use a wrist grounding strap as explained in " Precautionary Measures ." ...
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Dell GX240 - page 127
Microprocessor 127 Microprocessor Installation NOTICE: Y ou must position the microprocessor cor rectly in the ZIF socket to avoid permanent damage to the micr oprocessor and the computer when you turn on the computer . 3 Set the microprocessor lightly in the socket and mak e sure all pins ar e headed into the correct holes. Because your computer u ...
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Dell GX240 - page 128
128 Microprocessor www .dell.com | support.dell.com NOTICE: If you are not installing a microprocessor upgrade kit from Dell, reuse the original blower/heat sink assembly and securing clips when replacing the microprocessor . 5 Remove the film covering t he bottom of the heat sink. 6 On the small form-factor and small desktop computers, reinstall t ...
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Dell GX240 - page 129
Microprocessor 129 NOTE: If a setup password has been assigned by someone else, contact the network administrator for information on resetting the chassis intr usion detector . 15 R un the Dell Diagnostics to verify th at the new processor is operating correctly . See the User ’s Guide for information on Dell Diagnostics. ...
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Dell GX240 - page 130
130 Microprocessor www .dell.com | support.dell.com ...
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Dell GX240 - page 131
www .dell.com | support.dell.com SECTION 14 P ower Supply Removing the Power Supply Replacing the Power Supply ...
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Dell GX240 - page 132
132 P ower Supply www .dell.com | support.dell.com R emoving the P o wer Supply Small F orm-F actor Computer 1 Release button 2 AC power connector 2 1 ...
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Dell GX240 - page 133
P ower Supply 133 Small Desktop Computer 1 Release button 2 AC power connector 1 2 ...
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Dell GX240 - page 134
134 P ower Supply www .dell.com | support.dell.com Small Mini- T ower Computer 1 Disconnect the AC power cable from the back of the power supply . 2 Disconnect the DC power cables from the system board and the drives. Note the routing of the DC power cables underneath the clips in the computer as you remove them from the system boar d and drives. I ...
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Dell GX240 - page 135
P ower Supply 135 7 Lift the power supply up and out of the computer . R eplacing the P ower Supply 1 Slide the power supply into place. 2 Reconnect the DC power cables. 3 Connect the AC power cable to the connector . 4 On the small desktop computer , reatta ch the power cables to the side of the hard drive and replace the expansion-card cage . 5 R ...
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Dell GX240 - page 136
136 P ower Supply www .dell.com | support.dell.com ...
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Dell GX240 - page 137
www .dell.com | support.dell.com SECTION 16 System Board System Board Components Removing the System Board Replacing the System Board ...
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Dell GX240 - page 138
138 System Board www .dell.com | support.dell.com System Board Components 7 1 9 10 23 4 5 6 8 11 12 13 15 17 18 19 20 21 14 16 22 23 24 25 26 27 28 29 30 ...
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Dell GX240 - page 139
System Board 139 System Board L abels 1 Floppy drive 16 Audio li ne-out connector 2 Internal speaker 17 12-volt microprocessor power connector 3 EIDE2 connector 18 Network (upper) and USB connectors (2) (lower) 4 F ront panel connector 19 Keyboar d (lower) and mouse (upper) connectors 5 EIDE1 connector 20 Diagnostic lights 6 Suspend-to-RAM light 21 ...
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Dell GX240 - page 140
140 System Board www .dell.com | support.dell.com System Board Jumper K YBD_MOUSE Keyboard and mouse connectors MODEM T elephony connector NIC_USB Integrated network adapter connector and USB connectors P AR_SER1_SER 2 P arallel an d serial port connectors PCI n PCI expansion ca rd connec tors POWER Main power input connector 12VPOWER 12-volt power ...
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Dell GX240 - page 141
System Board 141 System-Board Jumper Settings R emoving the System Board CAUTION: Before you remove any component from the system board, read the steps in " Precautionary Measures ." NOTE: The system board and metal tray are attached and are removed as one piece. 1 Remove any components that restric t access to the system boar d. 2 Discon ...
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Dell GX240 - page 142
142 System Board www .dell.com | support.dell.com Removing the System Board 5 Place the system boar d that you ju st removed ne xt to the r eplacement system board. R eplacing the System Board 1 T ransfer components from the e x isting system board to the replacement system boar d. 2 Remove the memory modules and in stall them on the replacement bo ...
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Dell GX240 - page 143
System Board 143 5 Set the jumpers on the replacement system bo ar d so it is identical to the one on the existing boar d. NOTE: Some components and connectors on the replacement system board may be in different locations than the corresponding connectors on the existing system board. 6 Orient the replacement boar d by aligning the notches on the b ...
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Dell GX240 - page 144
144 System Board www .dell.com | support.dell.com ...
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