Sun Microsystems 5500, Reference Manual

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D-4 Sun Enterprise 6500/5500/4500 Systems Reference Manual • April 1998
D.3 CPU Modules
1. Each CPU/ board has two sets of CPU connectors, marked “PROC 0”
and “PROC 1”.
2. Do not mix CPU speeds.
3. Requirement — To run 250 MHz CPU modules:
a. Use only clock+ board part number 501-4286.
b. Do not mix 250 MHz CPU modules with CPU modules of a different speed.
4. The order in which CPU slots are filled is not critical. However, to optimize heat
dissipation in the system:
■
Fill all “PROC 0” locations on all CPU/ boards before filling any
“PROC 1” locations. To receive the maximum quantity of diagnostic
information, fill “PROC 0” on board 0.
■
After all “PROC 0” locations are filled, you can begin filling the “PROC 1”
locations, again starting from the lowest slot number to the highest.
TABLE D-1
shows slot locations for an example of five CPUs on three CPU/
boards.
TABLE D-1
Example of CPU Placement
Slot Number “PROC 0” “PROC 1”
0 in in
2 in in
4 in —