HP Z840 Workstation Series Service Manual

Memory
Supported DIMM configurations
NOTE: Mirroring and DIMM sparing are not supported.
Platform Configuration
HP Z440
●
Eight DIMM slots
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Registered ECC DIMMS only
●
Maximum capacity: 128 GB
HP Z640
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Four DIMM slots (single processor) or eight DIMM slots (dual processor)
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Registered ECC DIMMS and ECC Load Reducing DIMMs
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Maximum capacity:
◦
RDIMMs: 64 GB for single processor and 128 GB for dual processor
◦
LRDIMMs: 128 GB for single processor and 256 GB for dual processor.
●
The workstation can be configured for NUMA
HP Z840
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16 DIMM slots (8 per processor)
●
ECC Registered DIMMs and ECC Load Reducing DIMMs
●
Maximum capacity:
◦
RDIMMs: 128 GB for single processor and 256 GB for dual processor
◦
LRDIMMs: 1024 GB for single processor and and 2048 GB for dual processor
●
The workstation can be configured for NUMA
BIOS errors and warnings
The BIOS generates warnings/errors on invalid memory configurations:
●
If the BIOS can find a valid memory configuration by disabling plugged-in memory, it does so and
reports a warning during POST. the workstation can still be started. The warning will indicate the
location of the failed DIMM on the system board.
●
If there is no way for the BIOS to obtain a valid memory configuration by disabling plugged-in memory,
the BIOS halts with a diagnostics 2006 code for memory error (five beeps and blinks).
DIMM installation guidelines
●
Install only HP-approved DDR4 DIMMs
CAUTION: HP ships only 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.
●
Install only HP-approved DDR4 DIMMs. See
http://www.hp.com/go/quickspecs to find DIMMs that are
compatible with the workstation.
●
UDIMM (Unbuffered), RDIMM (Registered) and LR DIMM (Load Reduction) memory cannot be mixed. All
memory installed in the system must be either UDIMM or RDIMM or LR DIMMs.
Supported DIMM
configurations on page 65specifies which technologies are supported on each platform.
Component replacement guidelines 65

HP Z840 Workstation Series Specifications

General

Chipset	Intel C612
Memory Slots	16 DIMM slots
Processor	Intel Xeon E5-2600 v3/v4 series
Storage	Supports SATA, SAS, and SSD
Graphics	NVIDIA Quadro and AMD FirePro options
Expansion Slots	7 PCIe slots
Power Supply	1125W 90% efficient
Operating System	Windows 10 Pro 64, Red Hat Enterprise Linux, SUSE Linux Enterprise Desktop
Ports	USB 3.0, USB 2.0