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HP Workstation Z840 Memory Upgrades ✓­ Guaranteed Compatible

Make & ModelHP Workstation Z840
Total Memory Slots16
Maximum Memory2TB

It's easy to buy HP Workstation Z840 memory here.

Expert Technical
Support

Have a question about your HP Workstation Z840 memory upgrade? Our technical support can help you with any question to ensure you get the best module option for your HP Workstation Z840 system.

100% Guaranteed
Compatible

Get proven HP Workstation Z840 memory upgrades here. We ship approved, certified and OEM qualified modules to ensure total HP Workstation Z840 system memory reliability.

Quick Advance
Replacement

Nothing is perfect. Sometimes things happen. If your HP Workstation Z840 memory upgrade fails at anytime–we will ship a replacement same day. We support your HP Workstation Z840 memory purchase long after the sale.

Meet the increasing demands of your applications with more HP Workstation Z840 memory.
Expand system performance with an upgrade at lower costs today!

DIMM Type    Speed    Configuration Guide    Lifetime WarrantyLifetime WarrantyLifetime WarrantyLifetime Warranty
Never worry. We support you long after the sale. If any module ever fails–we will replace at zero cost to you!

DIMM TYPE
Memory Size
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Made By

Showing 1–50 of 157 results

Part # Part Number Made By Capacity Speed Form Factor Price
1XD87AA
1XD87AA
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
815101-B21
815101‐B21
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
838085-B21
838085‐B21
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
840759-091
840759‐091
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
840759-191
840759‐191
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
850882-001
850882‐001
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
868844-001
868844‐001
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
880842-B21
880842‐B21
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
881901-B21
881901‐B21
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
882362-091
882362‐091
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
882449-001
882449‐001
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
Q2D33A
Q2D33A
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 84 Buy Now
805351-B21
805351‐B21
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
809083-091
809083‐091
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
819412-001
819412‐001
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
843315-B21
843315‐B21
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
851007-B21
851007‐B21
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
852265-001
852265‐001
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
854596-B21
854596‐B21
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
Q1V92A
Q1V92A
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
T9V41AA
T9V41AA
Memory for HP Workstation Z840
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 42 Buy Now
805349-B21
805349‐B21
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
809081-081
809081‐081
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
809082-091
809082‐091
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
819411-001
819411‐001
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
836220-B21
836220‐B21
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
840756-C9S
840756‐C9S
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
846740-001
846740‐001
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
851005-B21
851005‐B21
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
852264-001
852264‐001
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
854594-B21
854594‐B21
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
882344-B21
882344‐B21
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
P02972-001
P02972‐001
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
Q1V91A
Q1V91A
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
T9V40AA
T9V40AA
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 28 Buy Now
805347-B21
805347‐B21
Memory for HP Workstation Z840
Original Replacement 1x 8GB DDR4-2400 RDIMM $ 24 Buy Now
843311-B21
843311‐B21
Memory for HP Workstation Z840
Original Replacement 1x 8GB DDR4-2400 RDIMM $ 24 Buy Now
852261-001
852261‐001
Memory for HP Workstation Z840
Original Replacement 1x 8GB DDR4-2400 RDIMM $ 24 Buy Now
854592-B21
854592‐B21
Memory for HP Workstation Z840
Original Replacement 1x 8GB DDR4-2400 RDIMM $ 24 Buy Now
T9V39AA
T9V39AA
Memory for HP Workstation Z840
Original Replacement 1x 8GB DDR4-2400 RDIMM $ 24 Buy Now
809086-091
809086‐091
Memory for HP Workstation Z840
Original Replacement 1x 128GB DDR4-2400 LRDIMM $ 524 Buy Now
809208-B21
809208‐B21
Memory for HP Workstation Z840
Original Replacement 1x 128GB DDR4-2400 LRDIMM $ 524 Buy Now
819415-001
819415‐001
Memory for HP Workstation Z840
Original Replacement 1x 128GB DDR4-2400 LRDIMM $ 524 Buy Now
T9V43AA
T9V43AA
Memory for HP Workstation Z840
Original Replacement 1x 128GB DDR4-2400 LRDIMM $ 524 Buy Now
805358-B21
805358‐B21
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2400 LRDIMM $ 82 Buy Now
809085-091
809085‐091
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2400 LRDIMM $ 82 Buy Now
819413-001
819413‐001
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2400 LRDIMM $ 82 Buy Now
Q1V93A
Q1V93A
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2400 LRDIMM $ 82 Buy Now
T9V42AA
T9V42AA
Memory for HP Workstation Z840
Original Replacement 1x 64GB DDR4-2400 LRDIMM $ 82 Buy Now
726719-B21
726719‐B21
Memory for HP Workstation Z840
Original Replacement 1x 16GB DDR4-2133 RDIMM $ 24 Buy Now

Learn more about HP Workstation Z840 memory

What HP Workstation Z840 DIMM type is supported?

LRDIMM and RDIMM

Why are there various DIMM types supported?

Factory configured Z840 systems often have smaller, less expensive modules. As more memory is required different density and technologies are needed. DIMM type mixing is never recommended.

What is a registered memory module?

Registered DIMM memory modules have a register component between the DRAM modules and the motherboard memory controller. When manufactured as a dual in-line memory module (DIMM), a registered memory module is called an RDIMM.

What is a load reduced memory module?

Load reduced memory module technology uses a distributed data buffer to improve bandwidth efficiencies when scaling to higher capacities and speed on enterprise server systems. All LRDIMMs are registered but not all RDIMMs are LRDIMMs. LRDIMM or load-reduced DIMMs are (used in enterprise servers) support highest density modules and contain a memory buffer (MB) component usually made by IDT or Montage. The memory buffer minimizes the load on the server memory bus. LRDIMMs are commonly used to maximize HP Workstation Z840.

What HP Workstation Z840 memory speed is supported?

DDR4-2133, DDR4-2400 and DDR4-2666

Why may there be various speeds of HP Workstation Z840 memory?

Some servers often have various configurations and versions. If you are unsure what you need, please refer to your Z840 manual or data sheet. If you need tech support, please contact us.

General DIMM population guideline for HP Workstation Z840 upgrade to consider.

Some may or may not apply.

  • Do not mix DIMM LRDIMM and RDIMM types.
  • If mixing memory speeds, all 16 DIMMs run at the lowest DDR4-2133 bus frequency.
  • Install DIMMs starting furthest from the processor.
  • Do not install DIMMs if the corresponding processor is not installed.
  • If only one processor is installed in a two CPU system, only half of the DIMM slots are available.
  • To maximize performance, balance the total memory capacity between all installed processors.
  • It is not required, but it is recommended to load the channels similarly if possible.

Why are there so many HP Workstation Z840 upgrade options?

IT buyers come from all walks of life. Some purchase by OEM part number. Some purchase by original module part number. Our goal is to give you confidence when purchasing HP Workstation Z840 upgrades. All modules listed are qualified to work in your HP Workstation Z840.


 

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