HP DL785 HP ProLiant DL785 G5 and G6 Servers - Maintenance and Service Guide, - Page 31

CAUTION, WARNING, required

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CAUTION: The cell filler is required to be place in cells 3 - 6 in a four-processor configuration. CAUTION: Before starting this procedure, read the information about protecting against electrostatic discharge ("Preventing electrostatic discharge" (page 23)). CAUTION: To prevent possible server malfunction and damage to the equipment, multiprocessor configurations must contain processors with the same part number. CAUTION: All supported AMD Opteron quad-core processors 3.1 GHz or greater and all supported AMD Opteron six-core processors require the system maintenance switch, located on the I/O backplane, (SW1) position 5 to be in the On position. HP recommends updating to the latest version of firmware. Earlier firmware versions might not validate the required switch setting for these processors. NOTE: Six-core AMD Opteron Processors might show a 1 MB reduction in available L3 cache when performance enhancing HT Assist is enabled because HT Assist requires 1MB of L3 cache per CPU to operate. To replace a processor: 1. Power down the server ("Power down the server" (page 25)). 2. Remove the processor memory cell ("Processor memory cell" (page 29)). 3. Remove the processor memory cell airflow baffle ("Processor memory cell airflow baffle" (page 30)). WARNING! To reduce the risk of personal injury from hot surfaces, allow the heatsink to cool before touching it. 4. Open the heatsink retaining bracket. Processors 31

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CAUTION:
The cell filler is
required
to be place in cells 3 – 6 in a four-processor configuration.
CAUTION:
Before starting this procedure, read the information about protecting against
electrostatic discharge (
“Preventing electrostatic discharge” (page 23)
).
CAUTION:
To prevent possible server malfunction and damage to the equipment, multiprocessor
configurations must contain processors with the same part number.
CAUTION:
All supported AMD Opteron quad-core processors 3.1 GHz or greater and all
supported AMD Opteron six-core processors require the system maintenance switch, located on
the I/O backplane, (SW1) position 5 to be in the On position.
HP recommends updating to the latest version of firmware. Earlier firmware versions might not
validate the required switch setting for these processors.
NOTE:
Six-core AMD Opteron Processors might show a 1 MB reduction in available L3 cache
when performance enhancing HT Assist is enabled because HT Assist requires 1MB of L3 cache
per CPU to operate.
To replace a processor:
1.
Power down the server (
“Power down the server” (page 25)
).
2.
Remove the processor memory cell (
“Processor memory cell” (page 29)
).
3.
Remove the processor memory cell airflow baffle (
“Processor memory cell airflow baffle”
(page 30)
).
WARNING!
To reduce the risk of personal injury from hot surfaces, allow the heatsink to
cool before touching it.
4.
Open the heatsink retaining bracket.
Processors
31