Removal and replacement procedures 49
Memory
The system has four DIMM slots that support PC3-10600E unbuffered DIMM (UDIMM) with ECC
support. The DIMM slots are divided into two channels of two DIMM slots each.
Item Connector code Slot type
1 DIMM4B Channel B 1
st
DDR3 DIMM slot
2
DIMM3D Channel B 2
nd
DDR3 DIMM slot
3
DIMM2A Channel A 1
st
DDR3 DIMM slot
4
DIMM1C Channel A 2
nd
DDR3 DIMM slot
Memory installation guidelines
Observe the following important guidelines when installing memory modules:
• Use only HP supported PC3-10600E UDIMM in 1 GB, 2 GB, or 4 GB capacities.
• Supported DIMM configurations include:
○ Single DIMM (non-interleaving) – It must be installed in the DIMM2A slot.
NOTE: To allow an interleaving memory configuration, the Memory Interleaving field in the
Advanced | Advanced Chipset Control menu of the BIOS Setup must be set to Enabled.
○ Two DIMMs (interleaving) – For optimum memory performance, install in the DIMM2A and
DIMM4B slots.
○ Four DIMMs
• When modules of varying speed are installed, the system will run at the fastest common
frequency as determined through the SPD registers on the memory modules.
