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Computer Memory Solutions

Computer Memory Solutions CM512646400SO 4GB DDR2 800MHz SODIMM Apple iMac Core 2 Duo 2.4 20-Inch Early 2008

SKU CH-7C73-8T3RV

4GB DDR2 800MHz SODIMM module for the 20-inch early 2008 iMac Core 2 Duo 2.4

  • Total capacity4 GB
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • 4GB capacity expands iMac memory for smoother multitasking
  • DDR2 800MHz speed matches original system specification
  • 200-pin SODIMM form factor fits Early 2008 iMac slot exactly
  • Unbuffered non-ECC design ensures direct compatibility with Apple hardware
  • Single 4GB module simplifies upgrade in one of two slots

4GB DDR2 SODIMM for 20-Inch iMac

This 4 GB DDR2 800 MHz module is built specifically for the Apple iMac Core 2 Duo 2.4 20-Inch Early 2008. It installs as a single 200-pin SO-DIMM running at 1.8 V with CL6 timing. The part is new and carries the manufacturer's lifetime warranty when purchased direct.

Suits owners of the listed iMac model

Buyers with a different iMac year, screen size, or processor speed should verify their exact model identifier before ordering. Systems that require ECC or registered memory cannot use this unbuffered stick. The kit contains only one module, so a second slot must be filled separately to reach the 6 GB maximum.

DDR2 800 (PC2-6400) 200-pin SO-DIMM

The module operates at DDR2 800 speed, also labelled PC2-6400, and fits the 200-pin SO-DIMM socket in the compatible iMac. It is a 2Rx8 rank, non-ECC, unbuffered design without a heat spreader. Confirm the system accepts 1.8 V DDR2 before purchase.

How it compares

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

Price $45.99
Cheaper than about 79% 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).
Price per GB $11.50 per GB
Pricier than about 56% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512646400SO
Total capacity4 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 items1 Memory RAM Stick

Questions about this item

Should I pick the single 4 GB module or add a second stick to reach the 6 GB maximum?

The iMac has two slots and supports up to 6 GB total; installing this 4 GB stick leaves one slot free for an additional 2 GB module if you want the full capacity.

What does the 800 MHz rating deliver in everyday use on this iMac?

Running at 800 MHz with CL6 timing, the module matches the memory controller speed of the 2.4 GHz Core 2 Duo, so the system can sustain its peak bandwidth without down-clocking.

How does the 200-pin DDR2 SO-DIMM interface limit performance?

The 200-pin DDR2 SO-DIMM interface is keyed for PC2-6400 operation at 1.8 V, so the module cannot run faster than 800 MHz or use tighter timings than the rated CL6.

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