Removal and Replacement Procedures
HP ProLiant DL145 Generation 2 Server Maintenance and Service Guide
2-33
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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