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Green rectangular DDR5 DIMM with gold contacts and black chips

HPE

HPE P64707-B21 64GB DDR5 5600 CL46 server RAM

SKU CH-ZQKF-3V3ER MPN P64707-B21

64 GB DDR5-5600 registered dual-rank DIMM with CL46 latency and 1.10 V operation for server platforms

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • 64GB single module expands server memory capacity
  • DDR5 5600 MT/s delivers higher bandwidth than DDR4 4800 MT/s
  • CL46 latency improves response times at 5600 MT/s
  • 10V operation reduces power draw per module
  • Registered 288-pin DIMM ensures signal integrity for servers

64 GB DDR5 5600 Registered DIMM

This 64 GB module runs at 5600 MT/s with CL46 latency and 1.10 V operation. It is built as a single 288-pin dual-rank registered DIMM for server platforms that require registered memory. The part targets administrators upgrading or expanding memory in compatible HPE servers.

Upgrade from DDR4 4800 to DDR5 5600

The module delivers higher bandwidth and improved latency compared with DDR4 4800 memory. The jump is worth it when workloads benefit from the increased data rate and the platform supports DDR5 5600 registered DIMMs. It does not suit systems limited to DDR4 or those that require unbuffered modules.

DDR5 5600 platform constraints

DDR5 5600 registered memory operates only on platforms with matching memory controllers and qualified BIOS support. The 288-pin form factor prevents installation in DDR4 slots or unbuffered-only boards. Buyers needing lower capacities, unbuffered DIMMs or speeds beyond 5600 MT/s must select different modules.

How it compares

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

Price $2,137.99
Pricier than about 87% 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 $33.41 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHPE
Total capacity64 GB
Performance
Rated speedDDR5 5600 (PC5 44800)
Size & build
Shipping weight0.05 kg
Package size145 × 64 × 15 mm

Questions about this item

Does this module fit a standard 288-pin DDR5 server DIMM slot?

Yes, it uses the 288-pin DDR5 DIMM form factor designed for registered server memory slots.

What BIOS setting or step is often missed when installing this registered DDR5 DIMM?

Ensure the memory channel population order follows the server maintenance guide and that the BIOS recognises the registered module at 5600 MT/s.

How can I tell later if this DIMM needs replacement?

HPE Smart Memory reports advanced error data to the iLO or system event log; persistent correctable errors flag the module for replacement.

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