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Two green DDR2 SODIMM modules, 200-pin, no heat spreader

A-Tech

A-Tech 4GB (2x2GB) DDR2 800MHz PC2-6400 SODIMM 200-Pin memory upgrade

SKU CH-PZZF-VMEFE

DDR2 800 MHz 4 GB kit (2 × 2 GB) upgrades select 2008–2009 iMac and MacBook models

  • Capacity4GB (2 x 2GB)
  • SpeedDDR2 800 (PC2 6400)
  • Voltage1.80V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor Brand Chipset
  • 4GB kit expands multitasking headroom on supported Macs
  • DDR2 800MHz PC2-6400 matches factory memory speed
  • 200-pin SODIMM form factor fits MacBook and iMac slots
  • Non-ECC unbuffered design ensures stable everyday operation
  • Tested with major-brand chips for reliable performance

4 GB DDR2 800 MHz kit for Apple MacBook and iMac

This A‑Tech kit contains two 2 GB DDR2 SO‑DIMM modules rated at 800 MHz (PC2‑6400). It is built for the MacBook (13‑inch, Mid 2009) and iMac (20‑inch and 24‑inch, Early 2008) models identified by Apple order numbers MB323LL/A, MB324LL/A, MB325LL/A, MB398LL/A and MC240LL/A.

Suited for owners of the listed Mac models needing

The modules are non‑ECC unbuffered DDR2 SO‑DIMMs, so they will not work in machines that require registered memory, ECC memory or a different pin count. Buyers with other Mac generations or non‑Apple systems should verify compatibility before ordering.

200‑pin SO‑DIMM form factor decides fit

Each module uses the 200‑pin SO‑DIMM layout specified for these Apple computers. If the target machine uses a different pin count or DDR generation, the modules will not install.

Highlights

  • 4GB kit expands multitasking headroom on supported Macs
  • DDR2 800MHz PC2-6400 matches factory memory speed
  • 200-pin SODIMM form factor fits MacBook and iMac slots
  • Non-ECC unbuffered design ensures stable everyday operation
  • Tested with major-brand chips for reliable performance

Specifications

BrandA-Tech
SeriesA-Tech DDR2 Apple Mac RAM Memory Upgrades
Capacity4GB (2 x 2GB)
SpeedDDR2 800 (PC2 6400)
Voltage1.80V
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions about this item

How do I install the 200-pin DDR2 SODIMM modules in a MacBook5,2, and which step is most often done incorrectly?

Power off the MacBook, remove the battery, then open the memory door; insert each module at a 30-degree angle until the gold contacts disappear, then press down firmly until both side clips click — the step most often missed is pressing down hard enough to engage both clips.

Will the 1.80 V DDR2 800 MHz modules need any maintenance or replacement after extended use?

No routine maintenance is required; the modules have no heat spreader and no moving parts, so they either continue working or fail outright, at which point the pair would be replaced as a set.

What limit appears first when the iMac8,1 runs sustained workloads with this PC2-6400 memory?

The memory controller caps bandwidth at 800 MHz, so sustained throughput is limited to the PC2-6400 rating regardless of how long the workload runs.

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