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Single green 240-pin DDR2 DIMM with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 2GB DDR2 533 PC2-4200 DIMM memory upgrade

SKU CH-YDN7-X6AY6

Adds 2 GB of DDR2-533 memory to compatible Apple Power Mac G5 models from 2005

  • Total capacity2 GB
  • Rated speedDDR2 533 (PC2 4200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL4
  • Memory timings4-4-4
  • Rated voltage1.8 V
  • 2GB capacity adds multitasking headroom for Power Mac G5
  • DDR2 533 PC2-4200 speed matches original system specification
  • 240-pin unbuffered non-ECC DIMM fits the eight memory slots
  • 8V operation meets Apple factory voltage requirement
  • Compatible with late-2005 G5 Dual 2.3GHz, Dual 2GHz and Quad 2.5GHz models

2GB DDR2 DIMM for Power Mac G5

This 2GB 240-pin DDR2 module runs at 533 MHz (PC2-4200) with CL4 timing at 1.8V. It is an unbuffered, non-ECC DIMM built with major-brand chips and carries a lifetime warranty from Computer Memory Solutions. The stick is validated for Apple Power Mac G5 models M9591LL/A, M9590LL/A and M9592LL/A.

Suits G5 owners adding matched pairs

The system supports up to 16GB across eight slots, so this single 2GB stick works best for buyers filling empty sockets in matched pairs. Builders repairing a different Mac model or a PC platform should verify their exact part number because this module is qualified only for the listed G5 configurations.

DDR2 533 MHz (PC2-4200) speed grade

The decisive specification is the DDR2-533 speed rating; the G5 memory controller requires this exact frequency and will not run faster or slower modules reliably. Confirm the PC2-4200 designation matches your service manual before ordering.

How it compares

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

Price $12.99
Cheaper than about 95% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $6.50 per GB
Cheaper than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256644200DIMMDR
Total capacity2 GB
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 533 (PC2 4200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL4
Memory timings4-4-4
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsApple Power Mac G5 Dual 2.3 GHz M9591Ll/A
In the box
Included items1 Memory RAM Stick

Questions about this item

Should I choose a single 2 GB module or a different capacity for my Power Mac G5 Dual 2.3 GHz?

This listing supplies one 2 GB DIMM; the G5 Dual 2.3 GHz accepts up to 16 GB across eight slots, so you can add multiple modules to reach the desired total.

What does the 533 MHz rating deliver once installed in the G5?

The module runs at DDR2 533 (PC2-4200) with CL4 4-4-4 timings at 1.8 V, matching the memory bus speed supported by the Late 2005 Power Mac G5 models.

Is the 240-pin DDR2 interface compatible with the G5's memory slots?

Yes, the 240-pin DDR2 DIMM fits the G5's DDR2 slots; the system accepts unbuffered non-ECC modules such as this one.

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