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Two green 184-pin DDR1 DIMM sticks, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM128643200DIMM 2GB (2x1GB) DDR1 400MHz CL3 2.6V memory upgrade

SKU CH-CG2A-NM14T

Two 1 GB DDR1 modules rated at 400 MHz CL3 2.6 V for Apple Power Mac G5 A1047

  • Total capacity2 GB (2 × 1 GB)
  • Rated speedDDR 400 (PC 3200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL3
  • Memory timings3-3-3
  • Rated voltage2.6 V
  • 2 GB kit upgrades Power Mac G5 A1047
  • 184-pin DDR1 400 MHz CL3 modules
  • Non-ECC unbuffered design for desktop stability
  • 6 V operation matches original spec
  • Two 1 GB sticks fill dual-channel slots

Compatible System

This 2GB kit is built for the Apple Power Mac G5 A1047 across all series. It contains two 1GB unbuffered 184-pin DIMMs that install directly into the machine's memory slots without configuration changes.

Sustained Operation

Rated at DDR 400 (PC 3200) with CL3 3-3-3 timings and 2.6V voltage, the modules maintain their specified latency and bandwidth during extended workloads. Non-ECC major-brand chips provide stable data integrity for continuous professional tasks on the supported platform.

Upgrade Context

The kit raises total memory toward the system's 8GB maximum across eight sockets, replacing lower-capacity or slower DDR1 sticks. Buyers who need ECC registered modules or capacities beyond 2GB per kit should look elsewhere, as this product is strictly unbuffered non-ECC DDR1.

How it compares

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

Price $18.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB (2 × 1 GB)
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $9.50 per GB
Typical for this category: the median of 20,941 items is $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 nameCM128643200DIMM
Total capacity2 GB (2 × 1 GB)
Product type184-Pin DDR SDRAM
Performance
Rated speedDDR 400 (PC 3200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL3
Memory timings3-3-3
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage2.6 V
Compatibility
Compatible systemsApple Power Mac G5 A1047 All Series
In the box
Included items2 Memory RAM Sticks

Questions about this item

How much power do the 2.6 V DDR1 modules draw when the Power Mac G5 runs all day?

Each 1 GB DIMM operates at 2.6 V; total system draw depends on the Mac’s memory controller and workload, so exact wattage isn’t fixed by the sticks alone.

What must already be in the Power Mac G5 for this 184-pin kit to work?

The machine needs free 184-pin DDR SDRAM slots — the G5 A1047 has eight — and a firmware version that recognises PC3200 CL3 unbuffered non-ECC memory.

Will the CL3 400 MHz timing work alongside slower DDR1 modules I may leave installed?

The Mac’s controller will run all populated banks at the speed of the slowest module, so mixing with slower DDR1 is possible but reduces overall bandwidth.

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