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Two green DDR3 SO-DIMM sticks, 204-pin, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM5126410600SODRH 8GB DDR3 1333MHz 2x4GB SO-DIMM memory upgrade

SKU CH-5F5B-YH2XM

DDR3 1333 MHz SO-DIMM kit supplying 8 GB across two 4 GB modules for the 21.5-inch iMac with 2.8 GHz Core i7

  • Capacity8GB (2 x 4GB)
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 8GB dual-channel kit (2 × 4 GB) for smooth multitasking
  • DDR3 1333 MHz PC3-10600 speed matches factory spec
  • CL7 7-7-7 timings at 1.5 V for responsive performance
  • 204-pin unbuffered non-ECC SO-DIMM fits the iMac 21.5″ Intel Core i7 2.8 GHz (A1311)
  • System officially supports up to 16 GB across four sockets

8GB DDR3 SO-DIMM kit for Apple iMac 21.5

This 8GB kit contains two 4GB DDR3 1333MHz SO-DIMM modules built to PC3-10600 specification. The unbuffered, non-ECC memory runs at 1.5V with CL7 7-7-7 timings. It is designed as a direct upgrade for the Apple iMac 21.5-inch Intel Core i7 2.8GHz (A1311) system.

Sustained operation at 1333MHz with standard voltage

The modules operate at the JEDEC standard 1.5V without heat spreaders, relying on the iMac's internal airflow for cooling during extended workloads. CL7 latency supports consistent responsiveness for everyday multitasking and memory-intensive applications running continuously on this platform.

204-pin SO-DIMM form factor fits the iMac's slots

Each stick uses the 204-pin SO-DIMM layout required by the compatible iMac model which provides four memory sockets. Apple officially supports up to 16GB in this computer, so this 8GB kit leaves two slots open for future expansion if desired. Buyers needing the maximum 32GB capacity supported by the chipset cannot reach it with this kit alone.

Pontos fortes

  • 8GB dual-channel kit (2 × 4 GB) for smooth multitasking
  • DDR3 1333 MHz PC3-10600 speed matches factory spec
  • CL7 7-7-7 timings at 1.5 V for responsive performance
  • 204-pin unbuffered non-ECC SO-DIMM fits the iMac 21.5″ Intel Core i7 2.8 GHz (A1311)
  • System officially supports up to 16 GB across four sockets

Especificações

BrandComputer Memory Solutions
ModelCM5126410600SODRH
Capacity8GB (2 x 4GB)
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL7
Timing7-7-7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Imac 21.5" Intel Core I7 2.8Ghz (A1311)
Package Content2 Memory RAM Sticks

Perguntas sobre este artigo

How much power does each 4 GB DDR3 1333 module draw at its 1.5 V rating?

Each module runs at 1.5 V, the standard voltage for DDR3 SO-DIMMs of this speed; actual draw depends on the iMac's memory controller.

Does my iMac 21.5" Intel Core i7 2.8 GHz (A1311) need any firmware update before installing these 204-pin sticks?

The kit is guaranteed compatible with the A1311; Apple's official maximum is 16 GB, so the 8 GB kit works without extra steps.

Will these CL7 DDR3 1333 modules run correctly alongside the factory 1333 MHz memory already in my iMac?

Yes, they match the system's 1333 MHz spec and CL7 timing, so the Mac will operate all slots at the common 1333 MHz speed.

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