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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM512648500SODRH 4GB DDR3 1066MHz SODIMM Apple iMac 20" 2009 memory upgrade

SKU CH-08AN-0HPKR

A 4 GB DDR3 SODIMM running at 1066 MHz, built for 20-inch iMacs from 2009

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 4 GB capacity expands system memory for demanding applications
  • DDR3 1066 MHz speed matches original iMac specifications
  • CL7 latency timing optimises data access responsiveness
  • 204-pin SO-DIMM form factor fits Apple iMac 20" 2009 slots
  • Unbuffered non-ECC design ensures straightforward installation

4GB DDR3 SODIMM for 2009 iMac

This 4 GB module uses 204-pin DDR3 running at 1066 MHz with CL7 timing and 1.5 V operation. It is built for Apple iMac models from 2009 that accept PC3-8500 SO-DIMM memory.

Single stick upgrades one slot

The package contains one unbuffered non-ECC stick ranked 2Rx8 with major-brand chips and no heat spreader. Adding this module fills a single slot and raises total memory without requiring matched pairs.

Tool-free access on supported Macs

iMac 20-inch and 24-inch models from 2009 expose the memory door after removing the power cord, so installation takes minutes. MacBook Pro models listed need the bottom case removed, which adds steps and risks damaging clips if forced.

Points forts

  • 4 GB capacity expands system memory for demanding applications
  • DDR3 1066 MHz speed matches original iMac specifications
  • CL7 latency timing optimises data access responsiveness
  • 204-pin SO-DIMM form factor fits Apple iMac 20" 2009 slots
  • Unbuffered non-ECC design ensures straightforward installation

Caractéristiques

BrandComputer Memory Solutions
ModelCM512648500SODRH
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Timing7-7-7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Imac Intel Core 2 Duo 20" 2009
Package Content1 Memory RAM Stick

Questions sur cet article

Will the 204-pin DDR3 SODIMM need any firmware updates or re-seating over time?

No firmware updates are required; the module installs once and runs without further maintenance.

What limits the 1066 MHz CL7 module under sustained load?

The 1.5 V DDR3 specification and CL7 timing define the maximum stable throughput under continuous use.

Does the unbuffered 2Rx8 stick run hot or loud in an iMac running all day?

It has no heat spreader and no fan, so it adds negligible heat and zero noise during extended operation.

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