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Green bare circuit board DDR5 RDIMM memory module

G.SKILL

G.SKILL F5-6400R5252A48GX1-G5 48GB DDR5 6400 CL52 ECC Registered server RAM

SKU CH-QM2H-QX644 MPN F5-6400R5252A48GX1-G5

48GB DDR5 6400 ECC registered RDIMM with CL52 timing and 1.10V operation

  • Total capacity48 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetIntel W890 Series Chipset (w/ Quad-Channel Memory Support) A
  • CAS latencyCL52
  • Memory timings52-52-52-102
  • Rated voltage1.1 V
  • 48 GB capacity supports large server workloads
  • DDR5 6400 speed delivers high data throughput
  • CL52 latency with 52-52-52-102 timing optimises response
  • ECC Registered design protects data integrity
  • 10 V operation reduces power consumption

48GB DDR5 RDIMM for servers

This module is a 48GB DDR5 6400 RDIMM with ECC and registered buffering. It targets workstations and servers that require registered memory and error correction for data integrity. The CL52 timing and 1.10V voltage suit high-density platform configurations.

On-die and side-band ECC with sensor

On-die ECC and side-band ECC work together to detect and correct errors inside the DRAM and across the data bus. A dedicated temperature sensor allows the platform to monitor module thermals in real time. Plug-and-Play support enables automatic configuration at rated speed without manual tuning.

Quad-channel platform requirement

Multi-channel operation depends on a motherboard and CPU combination that implements quad-channel DDR5 support, such as Intel W890 or AMD TRX50 chipsets. Systems limited to dual-channel architectures cannot utilise the full bandwidth this module provides. Builders needing higher capacity per channel must verify platform lane count before purchase.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $1,384.99
Pricier than about 83% of the 6,523 comparable items (median $188.99).
Total capacity 48 GB
Higher than about 65% of the 6,064 comparable items (median 32 GB).
Price per GB $28.85 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineG5 Series
Model nameF5-6400R5252A48GX1-G5
Total capacity48 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetIntel W890 Series Chipset (w/ Quad-Channel Memory Support)
AMD TRX50 Chipset
Memory
CAS latencyCL52
Memory timings52-52-52-102
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Power
Rated voltage1.1 V
Size & build
Shipping weight0.05 kg
Package size127 × 76 × 3 mm

Questions about this item

Will the 48GB DDR5 RDIMM need replacement if the dedicated temperature sensor reports sustained high readings?

The module includes a dedicated temperature sensor for monitoring; no user-serviceable parts exist, so replacement would only occur if the module itself fails.

What timing limit appears first during sustained DDR5 6400 operation?

The rated timing is 52-52-52-102 at CL52; sustained loads run within these latencies as long as the motherboard and CPU maintain the 1.10V specification.

How much heat and noise does the 48GB registered DDR5 produce running continuously?

The module has no heat spreader and no moving parts, so it generates only the heat inherent to 1.10V DDR5 operation and produces no audible noise.

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