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Green circuit board with silver heat spreader and gold edge connectors

Mushkin Enhanced

Mushkin Enhanced 971609a 4GB DDR2 800 FB-DIMM memory upgrade

SKU CH-G67H-M59FN MPN 971609a

4 GB DDR2 800 FB-DIMM with ECC, 5-5-5-18 timings and a heat spreader for Apple Mac Pro systems

  • Total capacity4 GB
  • Rated speedDDR2 800 (PC2 6400)
  • CAS latency5
  • Memory timings5-5-5-18
  • Rated voltage1.8 V
  • Buffer typeFully Buffered
  • 4GB capacity expands Mac Pro memory headroom
  • Fully buffered DDR2 800 (PC2 6400) matches system spec
  • ECC protection guards against data corruption
  • CL5 5-5-5-18 timing keeps latency low
  • 8V operation with heat spreader aids stability

System-specific DDR2 for Apple Mac Pro

This 4 GB module is built for Apple Mac Pro workstations that require 240-pin DDR2 FB-DIMM memory. It delivers ECC protection and fully buffered operation for data integrity in professional environments.

4 GB capacity with 800 MT/s headroom

Running at DDR2 800 (PC2 6400) with 5-5-5-18 timings and CAS latency 5, the kit handles multi-threaded creative workloads within the platform's memory ceiling. Capacity tops out at the module limit, so larger datasets need additional slots.

Heat spreader aids sustained loads

The integrated heat spreader helps maintain stability during extended render or compute sessions at the rated 1.8 V. No extra software or cables are included; installation relies on the workstation's existing memory architecture.

How it compares

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

Price $215.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
CAS latency 5
Lower than about 97% of the 483 comparable items (median 22).
Price per GB $54.00 per GB
Pricier than about 90% 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 nameMushkin Enhanced
Model name971609a
Total capacity4 GB
Product type240-Pin DDR2 FB-DIMM
Performance
Rated speedDDR2 800 (PC2 6400)
Memory
CAS latency5
Memory timings5-5-5-18
ECC supportYes
Buffer typeFully Buffered
Heat spreaderYes
Power
Rated voltage1.8 V
Size & build
Shipping weight0.14 kg
Package size175 × 114 × 29 mm
Compatibility
Compatible withFor Apple Mac Pro System

Questions about this item

Will the 240-pin DDR2 FB-DIMM operate at DDR2 800 alongside slower modules already installed?

The system will run all memory at the speed of the slowest module, so existing slower DIMMs will limit this kit to their lower rate.

How can I confirm the module is running at PC2 6400 with 5-5-5-18 timings after installation?

Open System Information or a hardware monitor and verify the reported speed shows 800 MHz with CAS latency 5 and the listed timing values.

Does the 971609a arrive with a heat spreader attached, or must I purchase cooling separately?

The module includes a factory-fitted heat spreader, so no additional cooling hardware is required.

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