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Two green DDR2 SO-DIMM sticks, one 4GB one 2GB, gold contacts, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM6GB6400SO 6GB DDR2 800MHz 200-Pin SO-DIMM Kit Apple iMac 2.4 20-Inch Early 2008

SKU CH-EV51-H2EY3

6 GB DDR2 SO-DIMM kit for the 20-inch iMac 2.4 Early 2008, two modules at 800 MHz CL6 1.8 V

  • Total capacity6 GB
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • 6 GB total capacity for maximum supported memory
  • 800 MHz DDR2 speed matches system specification
  • 200-pin SO-DIMM form factor fits the iMac slots
  • CL6 6-6-6 timings at 1.8 V for stable operation
  • Two-module kit (4 GB + 2 GB) fills both sockets

Apple iMac 20-Inch Early 2008 Kit

This 6 GB DDR2 SO-DIMM kit is built for the Apple iMac "Core 2 Duo" 2.4 20-Inch Early 2008. It contains one 4 GB module and one 2 GB module, both running at 800 MHz with CL6 timing. The unbuffered, non-ECC sticks operate at 1.8 V and use major-brand chips. It fills both memory slots to reach the system maximum of 6 GB.

Upgraders with this exact iMac model

Owners of the Early 2008 20-inch iMac (model identifiers MB323LL/A, iMac8,1, A1224) can install this kit to hit the 6 GB ceiling. Builders working on any other Mac, any PC laptop, or any desktop board should not buy it; the DDR2 SO-DIMM form factor and 1.8 V voltage are specific to this platform.

DDR2 800 MHz PC2-6400 200-pin SO-DIMM

The memory runs at DDR2 800 (PC2-6400) on a 200-pin SO-DIMM interface with 1.8 V power. This single specification decides fit: if your machine requires a different DDR generation, a different pin count, or a different voltage, these modules will not work.

How it compares

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

Price $85.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 6 GB
Lower than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $14.33 per GB
Pricier than about 61% 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 nameCM6GB6400SO
Total capacity6 GB
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 800 (PC2 6400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL6
Memory timings6-6-6
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsApple Imac "Core 2 Duo" 2.4 20 in Early 2008
In the box
Included items2 Memory RAM Sticks

Questions about this item

Do I need both SO-DIMM slots free to install this 4 GB plus 2 GB kit?

The kit occupies both of the two SO-DIMM slots in the iMac, so no slot needs to be left empty; simply replace whatever modules are present with the two sticks supplied.

Will these DDR2 800 MHz modules work in the iMac 2.4 20-Inch Early 2008 that originally shipped with slower DDR2?

The modules are built to the PC2 6400 800 MHz specification that the Early 2008 iMac accepts, and the kit is guaranteed compatible with that exact model.

How can I confirm the full 6 GB is recognised after fitting the two sticks?

Open About This Mac or System Profiler after restarting; it should show 6 GB total memory at 800 MHz DDR2 across the two SO-DIMM slots.

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