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Green 240-pin DDR3 DIMM module with black chips and gold contacts

Crucial

Crucial CT8G3W186DM 8GB DDR3 1866 ECC memory upgrade

SKU CH-HABG-DN7Y1 MPN CT8G3W186DM

8GB 240-pin DDR3 ECC module running at 1866MHz with CAS 13 latency for Mac Pro systems

  • Type240-Pin DDR3 SDRAM
  • CompatibilityFor Apple Mac Pro System
  • Capacity8GB
  • SpeedDDR3 1866 (PC3 14900)
  • CAS Latency13
  • Voltage1.5V
  • ECC protection guards data integrity on critical workloads
  • 1866 MHz DDR3 speed accelerates Mac Pro responsiveness
  • 8 GB capacity expands multitasking headroom for demanding apps
  • 240-pin unbuffered design fits Mac Pro memory slots directly
  • CAS latency 13 at 1.5 V balances throughput and stability

Mac Pro DDR3 ECC upgrade

This 8 GB Crucial module is built for Apple Mac Pro workstations that accept 240-pin DDR3 ECC UDIMMs. It adds capacity to systems used for content creation, virtualization or scientific workloads where error-correcting memory is required.

Check your Mac Pro memory slots

Verify that your Mac Pro model supports unbuffered DDR3 1866 ECC UDIMMs and has a free 240-pin slot. The module runs at 1.5 V with CAS latency 13, so the firmware must be able to configure those timings automatically.

Thermals and power in daily use

Standard DDR3 UDIMM power draw applies at 1.5 V during typical workloads. No active cooling is included; the module relies on the Mac Pro’s internal airflow. Acoustic output is silent because there are no moving parts on the memory itself.

Points forts

  • ECC protection guards data integrity on critical workloads
  • 1866 MHz DDR3 speed accelerates Mac Pro responsiveness
  • 8 GB capacity expands multitasking headroom for demanding apps
  • 240-pin unbuffered design fits Mac Pro memory slots directly
  • CAS latency 13 at 1.5 V balances throughput and stability

Caractéristiques

BrandCrucial
ModelCT8G3W186DM
Type240-Pin DDR3 SDRAM
CompatibilityFor Apple Mac Pro System
Capacity8GB
SpeedDDR3 1866 (PC3 14900)
CAS Latency13
Voltage1.5V
ECCYes
Buffered/RegisteredUnbuffered
FeaturesCompatible with Mac Pro workstations
Increases Mac Pro system performance
Runs at 1866MHz-the fastest mainstream DDR3 ECC UDIMM and RDIMM speed currently available
Lead- and halogen-free
Easy to install
Trusted by enthusiasts of Mac systems
Every module extensively tested at the component and module level for complete functionality
Poids d’expédition0.06 kg
Dimensions du colis185 × 127 × 19 mm

Questions sur cet article

Does the 8 GB DDR3 1866 module arrive as a single stick or a kit, and are any tools required?

The module is supplied as a single 240‑pin DIMM; no tools are needed for installation in a compatible Mac Pro.

Should I choose this 1866 MHz CL13 ECC stick or a lower‑speed DDR3 alternative for my Mac Pro?

Select the 1866 MHz CL13 part when your Mac Pro supports PC3‑14900; it runs at the highest mainstream DDR3 ECC speed available.

What does the 1866 MHz rating mean once the memory is installed in a Mac Pro?

The memory will operate at 1866 MHz with CAS latency 13 at 1.5 V, delivering the fastest mainstream DDR3 ECC throughput the platform supports.

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