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Four green DDR4 DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions CM1024722400ECCR 32GB (4x8GB) DDR4 2400 ECC Registered DIMM memory upgrade

SKU CH-896N-J97A5

32GB kit of four 8GB DDR4 2400MHz ECC registered DIMMs for HP Z640 workstations

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 32 GB total capacity from four 8 GB modules
  • ECC registered design protects data integrity in servers
  • DDR4 2400 speed rated at PC4 19200
  • CL17 timing at 1.2 V for efficient operation
  • Validated for HP Z640 workstation compatibility

Compatibility Confirmed for HP Z640 Workstations

This 32GB kit is built specifically for the HP Compaq Workstation Z640. It delivers four 8GB DDR4 registered DIMMs that the supplier guarantees will function in that platform. The modules operate at 1.2V with a CAS latency of 17.

Suited for ECC Registered Slots Only

The memory is designed for systems that require registered ECC DDR4 modules. It will not work in desktop boards that accept only unbuffered non-ECC memory. Buyers needing standard consumer DIMMs or a different pin count should look at other products.

32GB Total Across Four Channels

The kit provides 32GB of total capacity running at 2400MHz when the installed processor supports that speed. With an 1866MHz capable processor the memory clocks down to 1866MHz. The Z640 platform supports a maximum of 256GB of registered ECC memory.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $89.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $2.81 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1024722400ECCR
Total capacity32 GB (4 × 8 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHp/Compaq Workstation Z640
In the box
Included items4 Memory RAM Sticks

Questions about this item

Does this 288-pin DDR4 kit require an HP Z640 workstation that supports registered ECC memory?

Yes, the 32 GB kit is built for the HP Z640 and will only function in systems that accept registered ECC DDR4 DIMMs.

If my Z640 has an 1866 MHz capable processor, will these 2400 MHz modules still operate?

The memory will clock down to 1866 MHz to match the processor's maximum supported speed.

How can I verify the kit is running at the correct speed and ECC mode after installation?

Check the BIOS memory information or use a system utility to confirm 2400 MHz operation, CL17 timings, 1.2 V voltage and ECC active status.

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