54 HP ProLiant ML370 Generation 4 Server Reference and Troubleshooting Guide
Processor options
The server supports single- and dual-processor operation. With two processors
installed, the server supports boot functions through the processor installed in
processor socket 1. However, if processor 1 fails, the system attempts to boot
from processor 2 and provides a processor failure message.
The server uses PPMs as DC-to-DC converters to provide the proper power to
each processor. Each PPM must be installed in the slot adjacent to its processor.
CAUTION: To prevent thermal instability and damage to the
server, do not separate the processor from the heatsink. The processor,
heatsink, and retaining clip make up a single assembly.
CAUTION: To prevent possible server malfunction and
damage to the equipment, do not mix processors of different types.
IMPORTANT: If upgrading processor speed, update the system ROM
before installing the processor.
IMPORTANT: Processor socket 1 and PPM slot 1 must be populated
at all times or the server will not function properly.
IMPORTANT: Always install a PPM when you install a processor. The
system fails to boot if the PPM is missing.
IMPORTANT: To ensure proper cooling, be sure the processor baffle is
installed at all times.
To install a processor:
1. Power down the server ("Powering down the server" on page 27
).
2. Extend or remove the server from the rack ("Extending the server from the
rack" on page 28
).
3. Remove the front bezel door, if necessary.
4. Remove the access panel ("Removing the access panel" on page 30
).
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