Service Manual

5. Disconnect the DC power cable from the back of the 3.5-inch diskette drive and the CD-ROM drive.
6. Remove the two screws that secure the power supply to the chassis back panel (see Figure 10).
7. Lift the power supply out of the chassis.
To install a replacement power supply, perform the following steps:
1. Lower the new power supply into the chassis.
Ensure that the power supply is properly seated into its slot in the chassis.
2. Secure the power supply with the two screws removed in step 6 of the previous procedure.
3. Connect the DC power cables to their connectors on the system board, hard-disk drives, and CD-ROM
drive.
4. Replace the cover
.
5. Connect the AC power cable to the power input receptacle on the back panel of the system.
6. Connect the free end of the AC power cable to an electrical outlet.
7. Connect all peripheral cables to the back of the system.
8. Turn on the power and observe the front panel status indicators for normal operation.
System Board
Figure 11. System Board Removal
1 memory modules (up to 4)
2 System board
3 Screws (7)
4 Riser board sockets J13, J20
5 Microprocessor/heat-sink
assembly
6 Power connector