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Eight bare green DDR5 RDIMM modules in a row

G.SKILL

G.SKILL F5-6400R3239G32GE8-G5N 256GB 8x32GB DDR5 6400 CL32 ECC Registered server RAM

SKU CH-8TMV-V73H5 MPN F5-6400R3239G32GE8-G5N

Eight 32 GB DDR5 registered DIMMs with ECC running at 6400 MT/s and CL32 for AMD Threadripper 7000WX workstations

  • Capacity256GB (8 x 32GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL32
  • Timing32-39-39-102
  • Voltage1.40V
  • 256 GB total capacity across eight 32 GB modules
  • DDR5 6400 speed with CL32 latency for responsive throughput
  • ECC Registered design protects data integrity in critical workloads
  • AMD EXPO profile enables one-click overclock on Threadripper 7000WX
  • Octa-channel kit matches WRX90 eight-channel architecture

Capacity and target platform

This G.SKILL G5 Neo kit provides 256GB of DDR5 server memory across eight 32GB registered DIMMs. It is built for AMD Ryzen Threadripper 7000WX series workstations that require ECC registered modules and an eight-channel memory architecture.

Sustained-load behaviour

Hand-screened ICs and individual module testing target stability during extended rendering or compute workloads. The CL32 32-39-39-102 timings at 1.40V are validated through AMD EXPO profiles to maintain the rated DDR5 6400 data rate under continuous pressure.

DDR5 registered DIMM constraints

Registered signalling and on-die plus side-band ECC add command-cycle overhead that limits maximum frequency compared to unbuffered designs. The 288-pin RDIMM form factor and EXPO profile require a motherboard with AMD WRX90 chipset and physical eight-channel support to operate as specified.

Highlights

  • 256 GB total capacity across eight 32 GB modules
  • DDR5 6400 speed with CL32 latency for responsive throughput
  • ECC Registered design protects data integrity in critical workloads
  • AMD EXPO profile enables one-click overclock on Threadripper 7000WX
  • Octa-channel kit matches WRX90 eight-channel architecture

Specifications

BrandG.SKILL
SeriesG5 Neo Series
ModelF5-6400R3239G32GE8-G5N
Capacity256GB (8 x 32GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL32
Timing32-39-39-102
Voltage1.40V
ECCYes
Buffered/RegisteredRegistered
Multi-channel KitOcta Channel Kit
BIOS/Performance ProfileAMD EXPO
ChipsetAMD WRX90 Chipset
Heat SpreaderNo
FeaturesHigh performance DDR5 R-DIMM memory kit
Designed for use with AMD Ryzen Threadripper 7000WX series processor
Requires compatible AMD WRX90 motherboard w/ 8-channel support
On-die ECC & side-band ECC
Dedicated temperature sensors
AMD EXPO Support
Shipping weight0.27 kg
Package size241 × 178 × 25 mm

Questions about this item

How much power will the 1.40V DDR5 6400 kit draw during sustained workloads?

Each module runs at 1.40V with CL32 32-39-39-102 timings; total system power depends on the CPU and motherboard VRM.

What motherboard and CPU must I already have for this octa-channel kit to function?

An AMD WRX90 motherboard with eight DDR5 slots and a Ryzen Threadripper 7000WX processor are required.

Can I mix this 256GB registered ECC kit with other registered ECC DDR5 modules on the same WRX90 board?

Mixing is possible only if all modules share identical speed, timing and voltage; the motherboard QVL should be consulted.

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