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Two green circuit boards with black memory chips and gold edge connectors

Computer Memory Solutions

Computer Memory Solutions 8GB (2×4GB) DDR3 1066 SO-DIMM memory upgrade

SKU CH-T45Z-W2J8N

8GB kit of two 4GB DDR3 1066 SO-DIMM modules for compatible Apple MacBook 13" (Late 2009)

  • Capacity8GB (2 x 4GB)
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 8 GB total capacity lets you run more applications at once
  • DDR3 1066 MHz speed matches the original MacBook specification for reliable operation
  • 204-pin SO-DIMM form factor fits the Late 2009 13-inch MacBook memory slots
  • CL7 latency with 7-7-7 timing delivers responsive performance for everyday tasks
  • Two matched 4 GB modules enable dual-channel bandwidth on supported systems

Apple MacBook Late 2009 upgrade

This 8GB kit contains two 4GB DDR3 1066 SO-DIMM modules built for the Apple MacBook "Core 2 Duo" 2.26 13-inch (Late 2009, model A1342). The unbuffered, non-ECC memory runs at 1.5V with CL7 timings and uses 204-pin connectors. It is designed for owners of that specific notebook who want the maximum 8GB capacity the system can recognise.

Replaces the factory 2GB or 4GB configuration

The MacBook shipped with two slots populated at lower densities. Swapping both slots for this matched pair raises the total to 8GB, but only after the Boot ROM is updated to version MBP 51.007E.B05 and the operating system is at least Mac OS X 10.6 Snow Leopard. Without those software prerequisites the machine will not address the full capacity.

Steady operation at rated JEDEC settings

The modules operate at the standard DDR3-1066 frequency and 1.5V without overclocking headroom. Under sustained workloads the CL7 latency remains constant because the parts are unbuffered and lack heat spreaders. The system-specific validation targets reliable daily use in the original thermal envelope rather than benchmark peaks.

Highlights

  • 8 GB total capacity lets you run more applications at once
  • DDR3 1066 MHz speed matches the original MacBook specification for reliable operation
  • 204-pin SO-DIMM form factor fits the Late 2009 13-inch MacBook memory slots
  • CL7 latency with 7-7-7 timing delivers responsive performance for everyday tasks
  • Two matched 4 GB modules enable dual-channel bandwidth on supported systems

Specifications

BrandComputer Memory Solutions
ModelCM512648500SODRH
Capacity8GB (2 x 4GB)
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 Macbook "Core 2 Duo" 2.26 13" (Uni/Late 09
Package Content2 Memory RAM Sticks

Questions about this item

Will the 204-pin DDR3 SO-DIMM modules fit the two memory slots in my Late 2009 MacBook 13-inch?

Yes, the kit matches the 204-pin SO-DIMM form factor and the MacBook6,1 (A1342) has two DDR3 slots that accept these modules.

What is the correct way to seat the modules so the MacBook recognises the full 8 GB?

Insert each stick at an angle until the gold contacts disappear, then press down firmly until both side clips click; the machine must run Boot ROM MBP 51.007E.B05 and Mac OS X 10.6 Snow Leopard or later to address 8 GB.

Do these unbuffered non-ECC sticks need any firmware updates or pairing maintenance over time?

No firmware updates are required for the memory itself; keep the Mac on a supported OS and reseat the modules only if the system fails to boot or shows memory errors.

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