Dell OptiPlex GX400 - Manual (Page 23)

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Expansion-Card Guide
Dell™ OptiPlex™ GX400 Service Manual
Removing the Expansion-Card Guide
Replacing the Expansion-Card Guide
Removing the Expansion-Card Guide
1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
2. Remove the AGP card brace or the AGP card clip .
3. Remove all expansion cards .
4. Rotate the hard-drive bracket out and remove it from the chassis.
5. Remove the expansion-card guide:
a. From the outside of the chassis, press in the tab.
This will release the card-guide tab from the chassis.
b. Rotate the released side of the card guide away from the front chassis wall.
c. With the released side of the card guide away from the chassis wall, pull the card guide up away from the chassis.
Removing the Expansion-Card Guide
Replacing the Expansion-Card Guide
Insert the two bottom tabs in the slots in the chassis wall. Then, rotate the card guide toward the front chassis wall until the top tab snaps into the slot in the front chassis
wall. See "
Removing the Expansion-Card Guide ."
CAUTION: Before you perform this procedure, see " Precautionary Measures ."
NOTICE: Before disconnecting a device from the computer or removing a component from the system board, verify that the standby power light on the system
board has turned off. To locate this light, see " System Board Components ."