Dell Precision 330 - Manual (Page 33)

Replacing the Expansion-Card Guide (Desktop Chassis)
Insert the two right tabs in the slots in the front chassis wall. Then, rotate the card guide toward the front chassis wall until the two left tabs snap into the slots in the left
side chassis wall. See "
Removing the Expansion-Card Guide (Desktop Chassis) ."
Mini Tower Chassis
l Removing the expansion-card guide
l Replacing the expansion-card guide
Removing the Expansion-Card Guide (Mini Tower Chassis)
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
2. Lay the computer down on its right side.
3. Remove the AGP card brace .
4. Remove all expansion cards .
5. Disconnect the fan power cable from its connector on the system board (FAN2). To locate this connector, see " System Board Components " or " Interior Service
Label ."
6. Remove the expansion-card guide:
a. From the outside of the chassis, press in the tab on the top of the card guide.
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 (see the following figure).
Removing the Expansion-Card Guide (Mini Tower Chassis)
Replacing the Expansion-Card Guide (Mini Tower Chassis)
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 (Mini Tower Chassis) ."
CAUTION: Before you perform this procedure, see " Precautionary Measures ."
NOTICE: Before disconnecting a peripheral from the system or removing a component from the system board, verify that the standby power indicator on the
system board has turned off. To locate this indicator, see " System Board Components " or " Interior Service Label ."
NOTE: The I/O cooling fan is mounted on the expansion-card guide.