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Green rectangular DIMM with gold 288-pin edge connector and black chips

HP

HP 5YZ57AT 64GB DDR4 2933 ECC Registered DIMM

SKU CH-QZ97-CKZT6 MPN 5YZ57AT

64 GB DDR4 2933 ECC registered DIMM with 288-pin form factor for server memory upgrades

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23466)
  • ECC supportECC
  • High-capacity 64 GB module expands server memory headroom
  • DDR4 2933 MHz speed delivers fast data throughput
  • ECC protection detects and corrects memory errors automatically
  • Registered signal processing improves stability in multi-DIMM configurations
  • RoHS certified for reduced environmental impact

HP 64GB DDR4 2933 ECC Registered DIMM

This HP 5YZ57AT module delivers 64GB of DDR4-2933 server memory in a single 288-pin DIMM. It operates at PC4-23466 speed with ECC and registered signal processing for data integrity. The component suits administrators expanding capacity in compatible HP ProLiant or enterprise platforms. RoHS certification confirms environmental compliance.

Compatibility checklist before ordering

Verify that your server motherboard accepts DDR4 registered ECC DIMMs at 2933 MHz and has a free 288-pin slot. Confirm the maximum supported capacity per slot and per channel in the system documentation. Ensure the BIOS revision recognises 64GB density modules before installation.

Build integration notes

The registered buffer reduces electrical load on the memory controller, allowing higher total capacities in multi-DIMM configurations. ECC corrects single-bit errors to protect critical workloads. The module requires a platform designed for registered DDR4; it will not function in unbuffered desktop or laptop boards.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $604.99
Pricier than about 73% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $9.45 per GB
Pricier than about 65% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHP
Total capacity64 GB
Performance
Rated speedDDR4 2933 (PC4 23466)
Memory
ECC supportECC
Size & build
Shipping weight0.45 kg
Package size229 × 165 × 13 mm

Questions about this item

What comes in the box and is anything else required to install this module?

The box contains one 64 GB DDR4 2933 ECC registered DIMM. No extra parts are needed if your server has a free 288-pin DDR4 slot and supports registered ECC memory.

Should I choose the 64 GB module or combine smaller modules to reach the same capacity?

This is a single 64 GB stick. Using one module leaves more slots open for future upgrades, while populating multiple channels with smaller modules can increase bandwidth on some platforms.

What does the 2933 MHz rating mean once the module is installed in a server?

The module will run at up to 2933 MHz (PC4-23466) when the platform supports that speed; otherwise it will downclock to the highest speed the memory controller allows.

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