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Two green 200-pin DDR2 SO-DIMM sticks in static bag

Computer Memory Solutions

Computer Memory Solutions CM256646400SO 4GB (2 x 2GB) DDR2 800 SO-DIMM

SKU CH-F8K7-TTM06

4GB DDR2 800 SO-DIMM kit, two 2GB sticks for Apple iMac Core 2 Duo 3.06 24-Inch Early 2008

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • 4 GB total capacity in a matched 2 x 2 GB kit
  • DDR2 800 MHz speed rated at PC2-6400 for responsive performance
  • 200-pin SO-DIMM form factor fits the iMac 24-inch Early 2008 slot
  • CL6 latency with 6-6-6 timing delivers stable operation at 1.8 V
  • Guaranteed compatibility with Apple iMac Core 2 Duo 3.06 24-inch Early 2008

Targeted upgrade for early 2008 iMac

This 4 GB kit contains two 2 GB DDR2 800 SO-DIMM modules built to the PC2 6400 standard with CL6 timing and 1.8 V operation. The 200 pin unbuffered design matches the factory specification for the 24 inch Core 2 Duo 3.06 model identified as iMac8 1 and A1225.

Replaces the original 2 GB or 4 GB factory memory

Installing this pair fills both SO-DIMM slots and raises the total to 4 GB the maximum the early 2008 iMac can address across its two sockets. The jump is worthwhile when the system still runs the original modules and daily tasks show memory pressure in Activity Monitor.

Limited by the DDR2 SO-DIMM interface

The 800 MHz data rate and 200 pin form factor are fixed by the memory controller in this iMac so faster DDR2 or later DDR generations will not function. The two slot layout also caps total capacity at 4 GB with currently available modules.

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 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $3.25 per GB
Cheaper than about 88% 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 nameCM256646400SO
Total capacity4 GB (2 × 2 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" 3.06 24 in (Early 2008)
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 200-pin DDR2 SO-DIMM modules fit the two memory slots in my Early 2008 24-inch iMac?

Yes, these 200-pin DDR2 SO-DIMM sticks are built for the two slots in the iMac "Core 2 Duo" 3.06 24-Inch (Early 2008) and match the PC2-6400 800 MHz specification.

What is the correct way to seat the two sticks so the iMac recognises the full 4 GB?

Insert each module at an angle into a slot, then press down firmly until the side clips click; the common mistake is stopping before the clips engage, which leaves the stick partially connected.

Do these unbuffered non-ECC modules need any firmware updates or periodic replacement?

No firmware updates are required; the memory is a passive component with no moving parts, and the manufacturer provides a limited lifetime warranty for exchange.

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