Dell PowerEdge C8000 - Manual (Page 221)

Troubleshooting 221
17 Turn off the sled and attached peripherals.
18 Remove the sled from the enclosure. See "Removing a Sled" on page 143.
19 Remove the cooling shroud. See "Removing the Cooling Shroud" on
page 151.
20 Replace processor 1 with processor 2. See "Installing a Processor" on
page 158.
21 Repeat step 13 through step 16.
If you have tested both the processors and the problem persists, the system
board is faulty. See "Getting Help" on page 241.
Identifying System Board Model Number
1 Press immediately after a power-on or reboot to enter System
Setup.
2 In the Main menu look for the ePPID entry.
3 The first 8 digits (
CN09N44V
) of the ePPID number represents the system
board model number and the remaining 14 digits represents the code for
the system’s piece part identification code.