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Eight bare green DDR5 RDIMM modules in a row

G.SKILL

G.SKILL F5-6400R3848F64GE8-T5N 512GB (8×64GB) DDR5 6400 CL38 ECC Registered server RAM

SKU CH-AA6T-8A6V7 MPN F5-6400R3848F64GE8-T5N

512GB quad-channel DDR5 6400 RDIMM kit with CL38 ECC registered modules for AMD Threadripper workstations

  • Capacity512GB (8 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL38
  • Timing38-48-48-102
  • Voltage1.35V
  • 512 GB total capacity from eight 64 GB modules
  • DDR5 6400 speed with CL38 latency for responsive throughput
  • ECC Registered design detects and corrects memory errors
  • AMD EXPO profile simplifies configuration on Threadripper 7000X / 9000X
  • 16-layer PCB and dual ECC enhance signal integrity and reliability

Capacity and Platform

This 512GB kit contains eight 64GB DDR5 RDIMMs built for AMD Ryzen Threadripper 7000X and 9000X series processors on TRX50 motherboards with quad-channel support. It targets workstations and servers that need registered ECC memory at scale.

Sustained Load Behaviour

A 16-layer PCB and dedicated temperature sensors help maintain stability during prolonged workloads. On-die ECC and side-band ECC protect data integrity across all channels while the modules run at 1.35V.

Installation Notes

The kit uses 288-pin DDR5 RDIMM form factor with AMD EXPO profile support for automatic configuration. Buyers who need unbuffered UDIMMs or consumer platforms without TRX50 quad-channel architecture cannot use this memory.

Highlights

  • 512 GB total capacity from eight 64 GB modules
  • DDR5 6400 speed with CL38 latency for responsive throughput
  • ECC Registered design detects and corrects memory errors
  • AMD EXPO profile simplifies configuration on Threadripper 7000X / 9000X
  • 16-layer PCB and dual ECC enhance signal integrity and reliability

Specifications

BrandG.SKILL
SeriesT5 Neo Series
ModelF5-6400R3848F64GE8-T5N
Capacity512GB (8 x 64GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL38
Timing38-48-48-102
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Multi-channel KitQuad Channel Kit
BIOS/Performance ProfileAMD EXPO
Heat SpreaderNo
FeaturesHigh performance DDR5 R-DIMM memory kit
16-layer PCB design
Designed for use with AMD Ryzen Threadripper 7000X / 9000X series processor
Requires compatible AMD TRX50 motherboard w/ 4-channel support
On-die ECC & side-band ECC
Dedicated temperature sensors
AMD EXPO Support
Shipping weight0.68 kg
Package size305 × 305 × 38 mm

Questions about this item

Does the 1.35 V operating voltage keep heat manageable when all eight modules run continuously?

The kit runs at 1.35 V and uses a 16-layer PCB with dedicated temperature sensors, but no heat spreader is fitted so airflow across the modules must be provided by the chassis.

What motherboard and processor combination is required for this 512 GB quad-channel kit to function?

A TRX50 motherboard with four-channel support and an AMD Ryzen Threadripper 7000X or 9000X series processor are required.

Will the AMD EXPO profile load automatically on a Threadripper 7000X system to reach DDR5 6400?

Yes, the modules carry an AMD EXPO profile for DDR5 6400 CL38, so a compatible Threadripper 7000X or 9000X platform can apply the rated speed and timings without manual setup.

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