How to Remove a Computer/PC Power Supply Unit
2. Feeding Mass Storage Unit
Removing a Power Supply
including the hard, floppy, and CD-ROM drives.
chassis. Do not remove the screws from the supply
Reverse this procedure to install a power. It is important
to note that the P8 and P9 connectors look almost identical.
Although each will attach to the system board only one way, it is
possible to place them beside each other the wrong way. When
attaching them to the system board, make sure the black wires of the
connectors are together.
The P8 and P9 connectors are attached to the system board
with the black wires together.