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Four green FB-DIMM modules with black chips and gold contacts

SK hynix

SK hynix DDR2 64GB (4 x 16GB) 667 FB DIMM server RAM

SKU CH-R6VH-WKJRB

A 64 GB DDR2 server memory kit of four 16 GB FB-DIMMs running at 667 MHz

  • Total capacity64 GB (4 × 16 GB)
  • 64 GB total capacity across four 16 GB modules
  • DDR2 technology running at 667 MT/s for server workloads
  • Fully buffered DIMM design improves signal integrity
  • Original SK hynix parts guaranteed authentic and functional
  • Manufacturer listing date 15 November 2018

Fully Buffered DDR2 Kit

This SK hynix kit supplies 64 GB of DDR2 memory arranged as four 16 GB FB DIMMs. It is built for servers that require registered, fully buffered modules rather than standard unbuffered DIMMs.

Sustained Operation on DDR2 667

Each module runs at 667 MT/s with fully buffered signalling that reduces electrical load on the memory controller during continuous workloads. The registered design helps maintain signal integrity across all four slots under prolonged use.

Platform Constraints for FB DIMM

Only systems with chipsets and BIOS revisions that explicitly support fully buffered DDR2 can use this kit. Boards limited to unbuffered or registered DDR2 without FB support will not recognise the modules.

How it compares

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

Price $20.99
Cheaper than about 94% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $0.33 per GB
Cheaper than about 99% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Total capacity64 GB (4 × 16 GB)

Questions about this item

How much heat and power should I expect from the 667 MHz DDR2 FB-DIMMs running continuously in a server?

Fully Buffered DIMMs include an advanced memory buffer that draws extra power and generates more heat than standard DDR2 modules, so plan for adequate airflow across all four 16 GB sticks.

What must my motherboard provide for these 667 MHz DDR2 FB-DIMMs to operate?

The board needs DDR2 FB-DIMM slots that support 667 MHz registered ECC memory and a chipset capable of addressing 64 GB across four channels.

Will these 667 MHz DDR2 FB-DIMMs work alongside older DDR2 modules I already have installed?

Mixing speeds forces every module to run at the slowest rated frequency, so adding slower DDR2 sticks would drop the 667 MHz kit to that lower speed.

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