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HP ProLiant DL380 Generation 4 Server Reference and Troubleshooting Guide
Processor Option
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 automatically boots
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: If mixing processor speeds, the server will run at the
slowest processor speed.
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.
To install a processor:
1. Power down the server ("Powering Down the Server" on page
4. If an optional redundant fan is located next to the processor, remove the fan.
