Compaq ProLiant 5500 Setup And Installation Manual page 63

Accessing the Processor
The ProLiant 5500 and 5500R server is shipped with one processor module and
three terminator boards, which fill all of the processor sockets. When adding
processors, first remove the terminator board and then install the processor and
Processor Power Module (PPM).
For details on the latest Katmai Instruction Set (SIMD) drivers for
the Pentium III Xeon processors go to the Compaq website:
http://www.compaq.com/products/servers/platforms
Mixed Processor Cache Sizes
You can now populate your server with processors of different cache sizes.
Processors of mixed cache size can be placed in any slot. However, all
processors must be of the same speed. For the core frequency settings required
to set processor speed, refer to Table 4-2 in this chapter or the System
Configuration label on the server access panel.
CAUTION: Do not set the core frequency switch higher than the
speed at which the processor is rated. Incorrect settings could
result in data loss or equipment damage.
IMPORTANT: You cannot mix Pentium II Xeon processors
(400-MHz and 450-MHz) and Pentium III Xeon processors (500-MHz) in a
server.
For use with Pentium II Xeon and Pentium III Xeon processor-based servers only
Compaq ProLiant 5500 and 5500R Servers Setup and Installation Guide
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