Memory - HP ProLiant DL145 Maintenance And Service Manual

Memory

The system has eight DIMM slots that support up to 16 GB maximum system memory (2 GB
in each of the eight DIMM slots).
Figure 2-39: DIMM slots
The eight DIMM slots are divided into two banks which in turn are assigned to one processor.
Together they make up one node.
•
DIMM1 to DIMM 4 – Assigned to the CPU 1 socket (U22, the boot node)
•
DIMM5 to DIMM8 – Assigned to the CPU 2 socket (U11)
IMPORTANT: For the system to function, DIMMS must be installed in pairs of the same size following
the slot sequence listed below:
•
Processor 1 socket (U22) DIMM slots: Populate DIMM3 and DIMM4 first, then DIMM1 and DIMM2
•
Processor 2 socket (U11) DIMM slots: Populate DIMM7 and DIMM8 first, then DIMM5 and DIMM6
Guidelines for Installing Memory Modules
Observe the following important guidelines when installing memory modules:
•
Use only HP supported PC3200 (400 MHz) registered ECC DIMMs in 512 MB, 1 GB, or
2 GB capacities
IMPORTANT: Use only HP supplied DIMMs. DIMMs from other sources can adversely affect data
integrity. The integrated 128-bit DDR memory controller of the AMD Opteron processor does not
work with unregistered DIMMs.
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Removal and Replacement Procedures
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