CAUTION: Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heat sink on the processor. This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board.
NOTE: After installing a new processor onto the system board, always update the system ROM to ensure that the latest version of the BIOS is being used on the computer. The latest system ROM BIOS can be found on the Web at: http:\\h18000.www1.hp.com/support/files.
Power Supply
WARNING! To reduce potential safety issues, only the power supply provided with the computer, a
replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer.
WARNING! Voltage is always present on the system board when the computer is plugged into an active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and/or the AC outlet before opening the computer.
Table
Power supply connector label | Connects to |
|
|
P1 | Main power connector (24 pin) |
|
|
P2 | CPU power connector (4 pin) |
|
|
P4 | Hard drive 1 |
|
|
P3 | Optical drive 1 |
|
|
1.Prepare the computer for disassembly (Preparation for Disassembly on page 87).
2.Remove the access panel (Access Panel on page 88).
3.Disconnect the power cables from the system board (two connectors) and drives.
4.Remove the three Torx screws that secure the power supply to the back of the chassis. Figure
126 | Chapter 6 Removal and Replacement Procedures Small Form Factor (SFF) Chassis |