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Green rectangular circuit board with gold edge connectors and black memory chips

A-Tech

A-Tech 8GB DDR3 1866MHz ECC RDIMM 240-Pin Mac Pro Late 2013 Memory Upgrade

SKU CH-D142-BKFQZ

8GB DDR3 1866MHz ECC registered DIMM for the Late 2013 Mac Pro cylinder

  • Total capacity8 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Compatible systemsApple Mac Systems
  • Designed for Apple Mac Pro Late 2013 cylinder systems
  • ECC registered DDR3 1866MHz protects data integrity
  • 8GB RDIMM module installs in 240-pin slots
  • Compatible with Xeon E5 1620 v2 3.7GHz processors
  • Major brand chips tested for reliability

Mac Pro Cylinder memory upgrade

This 8GB DDR3 1866MHz ECC RDIMM module is built for the Apple Mac Pro Late 2013 (MacPro6,1). It runs at PC3-14900 speed with a registered design and 2Rx4 organisation. The part matches Apple order numbers ME253LL/A, MD878LL/A and MQGG2LL/A.

Replaces slower or smaller DDR3 modules

The jump is worth it when your cylinder Mac Pro shows memory pressure during multitasking or when you need ECC registered stability for workloads that demand error correction. Each module operates at 1.50V and uses major-brand chips tested to strict standards.

Suits owners of MacPro6,1 seeking ECC RDIMM capacity

Builders who need non-ECC UDIMM memory or a different pin count should look elsewhere. The module is validated for Xeon E5-1620v2, E5-1650v2, E5-1680v2 and E5-2697v2 processors installed in the 2013 cylinder chassis.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $3.87 per GB
Cheaper than about 85% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR3 Apple Mac RAM Memory Upgrades
Total capacity8 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

Will this 240-pin RDIMM fit the Mac Pro Late 2013 memory slots?

Yes, the 240-pin RDIMM form factor is the exact module type used in the Mac Pro Cylinder (MacPro6,1).

What is the correct way to install this ECC registered module in the Mac Pro?

Power off the Mac, open the side panel, release the memory tray, and press the module straight down until the ejectors click. The step people miss is seating the module fully before locking the tray back.

Does this 1.50V DDR3 module need any firmware update or periodic replacement?

No firmware update is required; the module is tested for the supported Xeon CPUs. ECC registered DIMMs have no scheduled replacement — they stay in service until a memory error appears or capacity needs change.

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