Dimm Installation Configurations - HP Workstation xw6000 Hardware Reference Manual

Ä

DIMM Installation Configurations

DIMM Installation Configurations
DIMM Socket
Possible
XMM1
Configuration
DIMM
1
2
DIMM
3
Hardware Reference Guide
■
Install DIMMs in pairs across both memory channels. Each
DIMM socket populated with a DIMM on Channel A must be
populated with an identical DIMM on Channel B. For examples
of the correct configuration sequence, see the "DIMM Installation
Configurations" section later in this chapter.
■
Do not mix DIMMs with different memory speeds. Performance
will reflect the slowest speed DIMM.
■
Use only DIMMs that have been tested and approved by HP. Not
all DIMMs meet the HP standard for quality and reliability.
CAUTION: Your workstation will not function if the previous guidelines
are not followed when installing DIMMs.
When installing DIMMs, you must use the configurations in the
following table.
Memory Channel A
DIMM Socket
XMM3
DIMM
DIMM
Identical pairs for dual channel operation means XMM1 and XMM2
must have the same type of DIMM and XMM3 and XMM4 must have
the same type of DIMM for a fully populated system.
If you are only putting in two modules then they must be the same and
go in either XMM1 and XMM2 or XMM3 and XMM4. You must
have one in each channel for dual channel operation.
Hardware Upgrades
Memory Channel B
DIMM Socket DIMM Socket
XMM2 XMM4
DIMM
DIMM
DIMM DIMM
2–7