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Four black DDR5 RDIMM modules in a quad-channel kit

G.SKILL

G.SKILL F5-6400R3239G16GQ4-ZR5K 64GB (4×16GB) DDR5 6400 CL32 ECC Registered server RAM

SKU CH-Y07B-RTYXY MPN F5-6400R3239G16GQ4-ZR5K

64 GB quad-channel DDR5 RDIMM kit running at 6400 MT/s with CL32 latency, ECC and registered buffering for Xeon workstations

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL32
  • Timing32-39-39
  • Voltage1.40V

Capacity 64GB (4 x 16GB)

Speed DDR5 6400 (PC5 51200)

  • 64GB total capacity from four 16GB modules
  • DDR5 6400 speed with CL32 latency for responsive performance
  • ECC Registered design protects data integrity in workloads
  • Intel XMP 3.0 support enables simple overclock configuration
  • Optimised for Intel Xeon W-2400X and W790 platforms

Zeta R5 DDR5 6400 quad-channel kit

This 64 GB kit contains four 16 GB DDR5 registered DIMMs rated at 6400 MT/s with CL32-39-39 timings. It is built for workstations that require ECC registered memory and quad-channel bandwidth. The modules operate at 1.40 V and include on-die ECC plus side-band ECC for data integrity.

Intel XMP 3.0 profile and dedicated sensors

The kit ships with an Intel XMP 3.0 profile that sets the rated speed and timings automatically on supported platforms. Dedicated temperature sensors on each module allow the system to monitor thermal conditions during sustained workloads. These features simplify configuration and help maintain stability when the memory is pushed beyond standard JEDEC specifications.

Requires W790 quad-channel motherboard

Full rated performance and ECC registered operation depend on a motherboard with the Intel W790 chipset that provides four memory channels. Without a compatible quad-channel platform the kit will not deliver its specified bandwidth or registered functionality. Builders using other chipsets should select memory validated for those platforms.

Highlights

  • 64GB total capacity from four 16GB modules
  • DDR5 6400 speed with CL32 latency for responsive performance
  • ECC Registered design protects data integrity in workloads
  • Intel XMP 3.0 support enables simple overclock configuration
  • Optimised for Intel Xeon W-2400X and W790 platforms

Specifications

BrandG.SKILL
SeriesZeta R5 Series
ModelF5-6400R3239G16GQ4-ZR5K
Capacity64GB (4 x 16GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL32
Timing32-39-39
Voltage1.40V
ECCYes
Buffered/RegisteredRegistered
Multi-channel KitQuad Channel Kit
FeaturesZeta R5 series memory kits are overclocked performance DDR5 R-DIMM memory designed for
use in compatible workstation systems. Featuring Intel XMP 3.0 and ECC support, the Zeta R5
series is the ultimate overclocked performance memory solution for high-end workstations
platforms
• Optimized Intel Xeon W-2400X Series Processors
• Intel W790 Series Chipset (w/ Quad-Channel Memory Support)
• Requires compatible Intel W790 chipset motherboard w/ 4-channel support
• On-die ECC & side-band ECC
• Dedicated temperature sensors
• Intel XMP 3.0 Support
Shipping weight0.23 kg
Package size244 × 178 × 24 mm

Other versions of this model

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Questions about this item

Will the on-die ECC and side-band ECC features require any firmware updates or maintenance on the modules themselves?

No, the on-die ECC and side-band ECC are hardware-based error correction features that operate automatically without any user maintenance or firmware updates to the modules.

What thermal limit appears first during sustained heavy workloads on these 1.40V DDR5 6400 modules?

The dedicated temperature sensors monitor module thermals; sustained loads at 1.40V will hit thermal throttling thresholds before voltage or timing limits become the primary constraint.

How much power and heat does the quad-channel 64GB kit produce when running all day at 6400 speeds?

Four 16GB RDIMMs at 1.40V draw significant power under continuous load; expect noticeable heat output requiring adequate chassis airflow to maintain stable DDR5 6400 operation.

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