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Four green DDR3 ECC UDIMM sticks with gold contacts and black chips

A-Tech

A-Tech 16GB Kit (4x4GB) DDR3 1066 ECC UDIMM 240-Pin Memory Upgrade

SKU CH-HETR-TYEXV

16 GB ECC UDIMM kit (4×4 GB, DDR3 1066) for early Mac Pro and Xserve systems

  • Capacity16GB (4 x 4GB)
  • SpeedDDR3 1066 (PC3 8500)
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor Brand Chipset
  • 16GB capacity across four modules for expanded multitasking
  • DDR3 1066 speed with PC3-8500 rating for compatible bandwidth
  • ECC unbuffered design detects and corrects memory errors
  • 240-pin UDIMM form factor fits supported Mac Pro and Xserve systems
  • Tested for reliability with major-brand chips on every module

Mac Pro and Xserve DDR3 ECC kit

This 16 GB kit contains four 4 GB DDR3 1066 ECC UDIMM modules built for Apple Mac Pro towers and Xserve servers released between 2009 and 2012. It targets owners of those specific workstations who need to restore or expand memory capacity with server-grade error correction.

Speed must match PC3-8500

The modules run at 1066 MHz (PC3-8500) with 1.50 V unbuffered ECC operation. Only systems designed for this exact speed and voltage will recognise the kit; Mac Pro or Xserve models that require faster DDR3 or registered DIMMs cannot use it.

Tool-free installation in open slots

Each 240-pin UDIMM seats directly into the Mac Pro or Xserve memory riser without cables or brackets. The common mistake is mixing these unbuffered ECC sticks with registered modules or leaving slots unbalanced, which prevents the system from booting.

Points forts

  • 16GB capacity across four modules for expanded multitasking
  • DDR3 1066 speed with PC3-8500 rating for compatible bandwidth
  • ECC unbuffered design detects and corrects memory errors
  • 240-pin UDIMM form factor fits supported Mac Pro and Xserve systems
  • Tested for reliability with major-brand chips on every module

Caractéristiques

BrandA-Tech
SeriesA-Tech DDR3 Apple Mac RAM Memory Upgrades
Capacity16GB (4 x 4GB)
SpeedDDR3 1066 (PC3 8500)
Voltage1.50V
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions sur cet article

What does the 1066 MHz speed mean once the modules are installed in a Mac Pro?

The memory will run at 1066 MHz (PC3-8500) on the Mac Pro's memory bus, delivering the rated bandwidth for the supported Xeon processors.

How does the DDR3 1066 ECC UDIMM interface limit performance in these systems?

The DDR3 1066 interface caps the memory bandwidth to PC3-8500 speeds; the ECC unbuffered design adds error correction without registered latency.

Will the 240-pin ECC UDIMM modules fit the memory slots in a Mid 2010 Mac Pro?

Yes, the 240-pin ECC UDIMM form factor matches the Mac Pro (Mid 2010) and Xserve (Early 2009) memory slots exactly.

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