Dell OptiPlex N Service Manual (.pdf) - Page 52

System Power Supply, System Power-Supply Removal

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System Power Supply system-board DC power cables (2) power supply EIDE cable power-supply retention tab chassis tabs (2) cable tabs (2) hard-disk drive DC power cable screw AC power receptacle Figure 4-6. System Power-Supply Removal To remove the system power supply, follow these steps (see Figure 4-6): 1. Disconnect the AC power cable from the back of the computer. 2. Disconnect the DC power cables from the system board (see Figure 4-7) and the hard-disk drive. 3. Remove the expansion-card cage. 4. Remove the EIDE cable from the tabs on the power supply. 5. Remove the screw securing the AC power receptacle to the back of the chassis, and lift the connector away from the chassis. 6. Push the power-supply retention tab forward and rotate the top of the system power supply back until it clears the retention tab; then lift the power supply from the chassis. When you reinstall the system power supply, place it in front of the two tabs on the bottom of the chassis. Then rotate the power supply toward the front of the chassis until the retention tab snaps into place. Route the EIDE cable under the cable tabs on the power supply before reinstalling the expansion-card cage. 4-8 Dell OptiPlex N Systems Service Manual

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4-8
Dell OptiPlex N Systems Service Manual
S
ystem Power Supply
Figure 4-6.
System Power-Supply Removal
To remove the system power supply, follow these steps (see Figure 4-6):
1.
Disconnect the AC power cable from the back of the computer.
2.
Disconnect the DC power cables from the system board (see Figure 4-7)
and the hard-disk drive.
3.
Remove the expansion-card cage.
4.
Remove the EIDE cable from the tabs on the power supply.
5.
Remove the screw securing the AC power receptacle to the back of the
chassis, and lift the connector away from the chassis.
6.
Push the power-supply retention tab forward and rotate the top of the
system power supply back until it clears the retention tab; then lift the
power supply from the chassis.
When you reinstall the system power supply, place it in front of the two tabs on
the bottom of the chassis. Then rotate the power supply toward the front of the
chassis until the retention tab snaps into place. Route the EIDE cable under the
cable tabs on the power supply before reinstalling the expansion-card cage.
power supply
power-supply
retention tab
chassis tabs (2)
hard-disk drive
DC power cable
system-board
DC power
cables (2)
AC power receptacle
screw
EIDE cable
cable tabs (2)