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Green bare circuit board DDR5 RDIMM with black chips and gold contacts

G.SKILL

G.SKILL F5-6400R5252A64GX1-G5 64GB DDR5 6400 CL52 ECC Registered server RAM

SKU CH-VZKH-FA38S MPN F5-6400R5252A64GX1-G5

64GB DDR5 6400 ECC registered RDIMM with CL52 timing and on-die ECC for server workloads

  • Total capacity64 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetIntel W890 Series Chipset (w/ Quad-Channel Memory Support) A
  • CAS latencyCL52
  • Memory timings52-52-52-102
  • Rated voltage1.1 V
  • 64GB capacity supports heavy server workloads
  • DDR5 6400 speed delivers high data throughput
  • CL52 latency with 52-52-52-102 timing ensures responsive operation
  • ECC Registered design protects data integrity
  • 10V voltage reduces power consumption

G5 Series 64GB DDR5 RDIMM

This G.SKILL G5 Series module provides 64GB of DDR5 6400 registered ECC memory for Intel W890 and AMD TRX50 server platforms. The 288-pin RDIMM operates at 1.10V with CL52 latency. It targets workstations and servers that require error correction and registered buffering for stability.

Installation and common issues

The module plugs into a standard 288-pin DDR5 RDIMM slot and supports plug-and-play configuration on compatible motherboards. Multi-channel operation depends on the specific CPU and motherboard combination used. Installers must verify that the platform supports registered ECC DDR5; consumer boards that accept only unbuffered non-ECC DIMMs will not work.

DDR5 6400 registered ECC limits

The DDR5 6400 (PC5 51200) interface delivers high bandwidth but requires a motherboard and CPU that officially support this speed with registered modules. On-die ECC and side-band ECC protect data integrity, while a dedicated temperature sensor allows thermal monitoring. Systems without registered memory support cannot use this module at any speed.

How it compares

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

Price $2,539.99
Pricier than about 90% 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 $39.69 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineG5 Series
Model nameF5-6400R5252A64GX1-G5
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetIntel W890 Series Chipset (w/ Quad-Channel Memory Support)
AMD TRX50 Chipset
Memory
CAS latencyCL52
Memory timings52-52-52-102
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Power
Rated voltage1.1 V
Size & build
Shipping weight0.05 kg
Package size127 × 76 × 3 mm

Questions about this item

How can I verify the module runs at DDR5 6400 with CL52 timing after installation?

Enter the BIOS or use a system utility such as CPU-Z to confirm the memory reports 6400 MT/s and timings of 52-52-52-102 at 1.10V.

What ships with the module and what must be sourced separately?

The box contains the single 64GB 288-pin DDR5 RDIMM; a compatible motherboard with an Intel W890 or AMD TRX50 chipset and a supported CPU are required but not included.

Which version should I choose for a quad-channel server build?

This 64GB DDR5 6400 CL52 registered ECC module is the only capacity and speed offered in the G5 series; populate four slots on a quad-channel board for maximum bandwidth.

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