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Eight green bare DDR5 RDIMM modules in anti-static tray

G.SKILL

G.SKILL F5-6400R3239G48GE8-G5N 384GB (8×48GB) DDR5 6400 CL32 ECC Registered server RAM

SKU CH-3ZWR-3CR4H MPN F5-6400R3239G48GE8-G5N

384 GB octa-channel DDR5 RDIMM kit running at 6400 MT/s with CL32 timings and registered ECC for AMD Threadripper 7000WX workstations

  • Capacity384GB (8 x 48GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL32
  • Timing32-39-39-102
  • Voltage1.40V
  • 384 GB capacity across eight 48 GB modules
  • DDR5 6400 speed with CL32 32-39-39-102 timings
  • ECC registered design for data integrity
  • AMD EXPO profile on Threadripper 7000WX systems
  • 40 V operation on WRX90 eight-channel platforms

Target Workstation Memory

This G.SKILL G5 Neo kit delivers 384GB of DDR5 RDIMM capacity across eight 48GB modules. It is built for AMD Ryzen Threadripper 7000WX series processors on WRX90 platforms that require registered ECC memory. The octa-channel configuration supports memory-intensive workloads such as rendering and scientific computing. Buyers needing unbuffered DIMMs or consumer desktop compatibility should look elsewhere.

Platform Compatibility Checks

Verify that your motherboard uses the AMD WRX90 chipset and provides eight DDR5 slots for full octa-channel operation. The CPU must be a Threadripper 7000WX series processor with an integrated memory controller capable of DDR5 6400 speeds. Confirm the board QVL lists this exact model number before purchase. Systems lacking registered DIMM support or EXPO capability will not run this kit as specified.

Sustained Load Behaviour

Rated at CL32 with 32-39-39-102 timings and 1.40V, the modules maintain their EXPO profile during extended compute sessions. On-die ECC and side-band ECC preserve data integrity across long rendering or simulation runs. The bare PCB design without heat spreaders relies on chassis airflow for thermal management. Stability under continuous load depends on adequate case cooling and motherboard voltage regulation quality.

Highlights

  • 384 GB capacity across eight 48 GB modules
  • DDR5 6400 speed with CL32 32-39-39-102 timings
  • ECC registered design for data integrity
  • AMD EXPO profile on Threadripper 7000WX systems
  • 40 V operation on WRX90 eight-channel platforms

Specifications

BrandG.SKILL
SeriesG5 Neo Series
ModelF5-6400R3239G48GE8-G5N
Capacity384GB (8 x 48GB)
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 weight0.41 kg
Package size248 × 178 × 36 mm

Questions about this item

What comes in the box with the F5-6400R3239G48GE8-G5N kit and what must be purchased separately?

The kit includes eight 48 GB DDR5 6400 RDIMM modules for a total of 384 GB. A compatible AMD WRX90 motherboard with eight-channel support and a Ryzen Threadripper 7000WX series processor are required but not included.

How do I choose between the available versions or capacities of this G5 Neo series memory?

This model is a single 384 GB octa-channel kit of eight 48 GB modules running at DDR5 6400 CL32. No other capacity or speed variants are listed for this part number.

What does the DDR5 6400 (PC5 51200) rating mean once the modules are installed in a real workstation?

The modules operate at 6400 MT/s with timings of 32-39-39-102 at 1.40 V when the AMD EXPO profile is enabled on a supported WRX90 platform, delivering registered ECC bandwidth for memory-intensive workloads.

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