Memory
This section presents memory module (DIMM) configuration information and removal/installation
procedures.
DIMM installation guidelines
●
Install only HP-approved DDR3 DIMMs. Use all unbuffered DIMMs or all registered DIMMs. See
http://www.hp.com/go/quickspecs to find which DIMMs are compatible with the workstation.
CAUTION: HP only ships DIMMs that are electrically and thermally compatible with this
workstation. Because third-party DIMMs might not be electrically or thermally compatible, they are
not supported by HP.
NOTE: — HP Z Series Workstations support only ECC DIMM Memory.
— Do not intermix Unbuffered DIMM Memory with Registered DIMM Memory. The system will not
boot and will produce a memory error.
— For maximum performance, install the same number of DIMMs per CPU. Install them in pairs
of the same size if your workstation has two CPUs.
Supported DIMM configurations
This workstation supports these DIMM configurations:
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Unbuffered and Registered DIMM support
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Memory configuration from 1GB to 24GB (unbuffered DIMMs)
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Memory configuration from 4GB to 48GB (registered DIMMs)
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Total DIMM count:
Independent channels
per processor
Single processor Dual processor
Single One Two
Dual Two Four
Three Three Six
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In dual processor configurations, the workstation can be configured for NUMA* or non-NUMA
modes
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No support for mirroring
●
No support for DIMM sparing
* NUMA mode provides contiguous address space for each CPU such that a CPU can access its own
local memory faster than it can access memory local to another processor, or to memory shared between
processors.
NOTE: For maximum performance, install the same number of DIMMs per CPU. Install them in pairs
of the same size if your workstation has two CPUs.
ENWW Removing and installing components 125
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