Personal Computer User Manual

186 Installing System Components
Installing the Node Power Distribution Board
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized is not covered by
warranty. Read and follow the safety instructions that came with the product.
1 Insert the new power distribution board into the right retaining clip at a
45-degree angle, and then press the other end of the board down into the
left retaining clip to secure the board in place. Make sure to align the new
power distribution board with the screw holes on the bracket.
See Figure 3-38.
2 Replace the four screws securing the NPDB. See Figure 3-38.
3 Connect all cables to the NPDB. See Figure 3-38.
4 You must route the cables properly on the sled tray to prevent them from
being pinched or crimped.
5 Replace the interposer extender. See "Installing the Interposer Extender"
on page 184.
6 Replace the hard-drive tray. See "Installing the Hard-Drive Tray" on
page 182.
7 Replace the internal hard-drives. See "Installing a Hard-Drive Carrier" on
page 179.
8 Replace the back cover. See "Installing the Back Cover" on page 141.
9 Replace the sled. See "Installing a Sled" on page 134.