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Two green DDR2 fully buffered DIMM sticks with gold contacts

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR2 5300 667MHz ECC Fully Buffered DIMM memory upgrade

SKU CH-5CHS-S4MDC

8GB DDR2 667MHz ECC fully buffered DIMM kit for IBM System x3650 servers

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR2 667 (PC2 5300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL5
  • Memory timings5-5-5
  • Rated voltage1.8 V
  • 8 GB dual-channel kit expands server capacity
  • Fully buffered DDR2-667 ECC protects data integrity
  • 240-pin DIMMs install directly in IBM System x3650
  • Guaranteed compatible with IBM part numbers 46C7420 and 46C7423
  • Two 4 GB modules fill two of twelve available sockets

System-Specific DDR2 Kit

This 8 GB kit contains two 4 GB fully buffered DIMMs built for IBM System x3650 servers with model numbers 7979 and 1914. It delivers DDR2-5300 speed at 667 MHz with ECC protection for data integrity in server workloads.

Keyed 240-Pin Installation

The 240-pin fully buffered modules seat in the server's 12 DIMM sockets arranged in four banks of two. A keyed notch prevents misalignment, but the board must support fully buffered DDR2; standard registered DDR2 modules will not function in these slots.

Verify Server Model First

Confirm the exact machine type is x3650 (7979) or x3650 (1914) and that the BIOS is current. The platform accepts a maximum of 48 GB across all 12 sockets with a 4 GB per-socket limit, so this kit fills two sockets at the per-slot ceiling.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $39.99
Cheaper than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.00 per GB
Cheaper than about 77% of the 20,941 comparable items (median $8.19 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
Brand nameComputer Memory Solutions
Model nameCM512725300FBDIMM
Total capacity8 GB (2 × 4 GB)
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 667 (PC2 5300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL5
Memory timings5-5-5
ECC supportYes
Buffer typeFully Buffered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsIbm System X3650 (7979), X3650 (1914)
In the box
Included items2 Memory RAM Sticks

Questions about this item

How can I verify the 8GB DDR2 667MHz ECC Fully Buffered kit is recognised correctly after installation?

Enter the system BIOS or UEFI on the IBM System x3650 and confirm the total installed memory shows 8GB running at 667MHz with ECC active.

What does the package contain and is anything else required to complete the upgrade?

The box includes two 4GB 240-pin DDR2 Fully Buffered DIMMs; no additional parts are needed for the supported IBM System x3650 (7979) or (1914) servers.

Which capacity option should I choose for an IBM System x3650 with 12 memory sockets and a 48GB maximum?

This 8GB kit (2×4GB) fills two sockets; add further identical kits up to the 12-socket limit to reach the 48GB maximum.

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