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Four bare green DDR5 RDIMM modules with gold contacts

G.SKILL

G.SKILL F5-6400R3239G48GQ4-G5N 192GB (4×48GB) DDR5 6400 CL32 ECC Registered server RAM

SKU CH-PGDM-AGT7P MPN F5-6400R3239G48GQ4-G5N

192 GB quad-channel DDR5-6400 ECC registered kit with CL32 timings for AMD Threadripper 7000 workstations

  • Capacity192GB (4 x 48GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL32
  • Timing32-39-39-102
  • Voltage1.40V
  • 192 GB total capacity across four 48 GB modules
  • DDR5 6400 speed with CL32 latency for fast data throughput
  • ECC registered design detects and corrects memory errors
  • AMD EXPO profile enables one-click overclock on TRX50 platforms
  • 40 V operation with 32-39-39-102 timings tuned for stability

High-capacity ECC kit for Threadripper workstations

This 192GB quad-channel kit combines four 48GB DDR5 RDIMMs rated at 6400 MT/s with CL32 timings. Registered design and on-die plus side-band ECC protect data integrity for professional workloads. It targets AMD Ryzen Threadripper 7000X series processors on TRX50 motherboards with four-channel support.

Thermals and power at rated voltage

Modules run at 1.40V without a heat spreader, relying on case airflow for cooling. The EXPO profile applies the 32-39-39-102 timings automatically when the platform supports it. Registered buffering adds minor latency but improves signal quality across all four channels.

Sustained-load behaviour with hand-screened ICs

Hand-screened memory ICs and individual module testing aim to maintain stability during extended rendering or compute sessions. Rated speed and stability depend on motherboard QVL validation and CPU IMC capability. Builders needing more than four modules or non-AMD platforms should look elsewhere.

Highlights

  • 192 GB total capacity across four 48 GB modules
  • DDR5 6400 speed with CL32 latency for fast data throughput
  • ECC registered design detects and corrects memory errors
  • AMD EXPO profile enables one-click overclock on TRX50 platforms
  • 40 V operation with 32-39-39-102 timings tuned for stability

Specifications

BrandG.SKILL
SeriesG5 Neo Series
ModelF5-6400R3239G48GQ4-G5N
Capacity192GB (4 x 48GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL32
Timing32-39-39-102
Voltage1.40V
ECCYes
Buffered/RegisteredRegistered
Multi-channel KitQuad Channel Kit
BIOS/Performance ProfileAMD EXPO
ChipsetAMD TRX50 Chipset
Heat SpreaderNo
FeaturesHigh performance DDR5 R-DIMM memory kit
Designed for use with AMD Ryzen Threadripper 7000X series processor
Requires compatible AMD TRX50 motherboard w/ 4-channel support
On-die ECC & side-band ECC
Dedicated temperature sensors
AMD EXPO Support
Shipping weight0.27 kg
Package size241 × 178 × 25 mm

Questions about this item

How do I install this 288-pin DDR5 RDIMM kit on an AMD TRX50 motherboard and what step is often missed?

Populate all four channels with one 48GB module each, then enable the AMD EXPO profile in BIOS so the kit runs at DDR5 6400 CL32 32-39-39-102 1.40V; skipping EXPO leaves it at JEDEC defaults.

What maintenance or replacement will this registered ECC memory need over its service life?

No scheduled maintenance is required; if a module fails the on-die and side-band ECC will log correctable errors, and the only remedy is replacing the faulty 48GB RDIMM.

What limit appears first when this quad-channel kit runs sustained workloads at 6400 MT/s?

The 1.40V operating voltage and registered buffer latency (CL32 32-39-39-102) become the thermal and stability ceiling before bandwidth saturates the TRX50 four-channel interface.

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