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Three green DDR3 ECC UDIMM sticks with black chips, no heat spreaders

A-Tech

A-Tech 12GB (3x4GB) DDR3 1866 ECC UDIMM 240-Pin Mac Pro 2013 memory upgrade

SKU CH-XXEJ-1R4MF

12 GB kit of three 4 GB DDR3 1866 ECC UDIMM modules for the Late 2013 Mac Pro cylinder

  • Capacity12GB (3 x 4GB)
  • SpeedDDR3 1866 (PC3 14900)
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor Brand Chipset
  • 12GB ECC memory kit for 2013 Mac Pro cylinder
  • Three 4GB DDR3 1866 modules install in 240-pin slots
  • Error-correcting unbuffered design protects data integrity
  • Major-brand chips tested to strict quality standards
  • Qualified for MacPro6,1 with Xeon processors including 2.7GHz E5-2697v2

Designed for 2013 Mac Pro cylinder

This 12GB kit contains three 4GB DDR3 1866 ECC UDIMM modules built for the Apple Mac Pro (Late 2013). It matches the required 240-pin form factor and 1.50V operating voltage. The memory is validated for MacPro6,1 systems with order numbers ME253LL/A, MD878LL/A, MQGG2LL/A and BTO/CTO configurations.

ECC unbuffered with major-brand chips

Each module uses major-brand components in a 1Rx8 layout and delivers error-correcting code without registration. The ECC UDIMM design protects data integrity during sustained workloads while maintaining the unbuffered timing the cylinder Mac Pro expects. No heat spreaders are fitted, keeping the modules within the original thermal envelope.

Suits owners of 2013 cylinder Mac Pro

This kit fits users upgrading a Late 2013 Mac Pro with Xeon E5-1620v2, E5-1650v2, E5-1680v2 or E5-2697v2 processors. It will not work in later Mac Pro towers, iMac models, or any non-Apple DDR3 platforms that require registered DIMMs or different pinouts. Buyers needing capacities beyond 12GB or registered ECC memory should look elsewhere.

Points forts

  • 12GB ECC memory kit for 2013 Mac Pro cylinder
  • Three 4GB DDR3 1866 modules install in 240-pin slots
  • Error-correcting unbuffered design protects data integrity
  • Major-brand chips tested to strict quality standards
  • Qualified for MacPro6,1 with Xeon processors including 2.7GHz E5-2697v2

Caractéristiques

BrandA-Tech
SeriesA-Tech DDR3 Apple Mac RAM Memory Upgrades
Capacity12GB (3 x 4GB)
SpeedDDR3 1866 (PC3 14900)
Voltage1.50V
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions sur cet article

Will the ECC UDIMM modules need any firmware updates or reconfiguration after installation?

No firmware updates are required; the kit is designed for Mac Pro 2013 (MacPro6,1) and installs directly into the 240-pin DDR3 slots.

What limits sustained throughput on this 1866 MHz DDR3 kit?

The memory controller on the supported Xeon CPUs (2.7–3.7 GHz) and the PC3-14900 data rate set the maximum sustained bandwidth.

How much heat and power do the three unbuffered ECC sticks draw under continuous load?

Each module runs at 1.50 V without a heat spreader; total power stays within standard DDR3 1866 ECC UDIMM limits for the Mac Pro's cooling system.

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