Installation Guide, Seventh Edition - HP Integrity rx4640 Server

Installing Additional Components
Installing Internal Components
Chapter 3
40
Processor Load Order
Processors are attached to the processor extender board, which is located under the top cover in the top
service bay, directly under the memory extender board. The processor extender board holds up to four
processors. Sockets CPU 0 and CPU 1 are located on the top of the processor extender board, and sockets CPU
2 and CPU 3 are located on the bottom. Processors must be installed in a specific order. The processor
installation order is shown in Table 3-1.
CAUTION Do not modify the settings of the DIP switches located on the processor extender board. These
switches are for factory use only. Failure to observe this caution results in server failure.
Figure 3-8 Extender Board Latches
Table 3-1 Processor Load Order
Processors Socket
First CPU 0
Second CPU 1
Third CPU 2
Fourth CPU 3