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Two green circuit boards with gold edge connectors and black memory chips

Computer Memory Solutions

Computer Memory Solutions 16GB (2x8GB) DDR3 1333MHz SODIMM iMac 27" 2011 memory upgrade

SKU CH-2EN1-V8B56

Two 8 GB DDR3 SODIMM modules totalling 16 GB at 1333 MHz for the 27-inch 2011 iMac

  • Capacity16GB (2 x 8GB)
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Timing9-9-9
  • Voltage1.5V
  • 16 GB dual-channel kit boosts multitasking on the 27-inch 2011 iMac
  • 1333 MHz DDR3 modules match the factory memory specification exactly
  • 204-pin SO-DIMM form factor fits the four available slots without adapters
  • 5 V unbuffered design runs at standard voltage for stable operation
  • Lifetime replacement warranty from Computer Memory Solutions backs every module

Targeted iMac memory upgrade

This 16 GB kit contains two 8 GB DDR3 SO-DIMMs built for the 27-inch iMac released in mid 2011. It matches the factory 1333 MHz speed and 1.5 V voltage so the system recognises the modules without configuration changes. Buyers who need more than 16 GB or who own a different iMac generation should look elsewhere.

Two-module kit simplifies installation

The pair fills two of the four available slots, raising total memory from the standard 4 GB to 16 GB and leaving the remaining sockets open for future expansion. No heat spreaders are included, keeping the low-profile form factor required by the slim all-in-one chassis. The unbuffered, non-ECC design matches the original specification exactly.

DDR3 1333 sets the performance ceiling

The PC3-10600 interface caps bandwidth at the 1333 MHz data rate, so the machine cannot run faster memory even if faster modules are installed. CAS latency of CL9 and 2Rx8 organisation are fixed by the platform's memory controller. Systems limited to 32 GB maximum cannot address larger capacities regardless of module density.

Punti di forza

  • 16 GB dual-channel kit boosts multitasking on the 27-inch 2011 iMac
  • 1333 MHz DDR3 modules match the factory memory specification exactly
  • 204-pin SO-DIMM form factor fits the four available slots without adapters
  • 5 V unbuffered design runs at standard voltage for stable operation
  • Lifetime replacement warranty from Computer Memory Solutions backs every module

Caratteristiche tecniche

BrandComputer Memory Solutions
ModelCM10246410600SODRH
Capacity16GB (2 x 8GB)
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Timing9-9-9
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Imac 3.4Ghz Quad-Core Intel-Core I7 27" Mid 2011
Package Content2 Memory RAM Sticks

Domande su questo articolo

Will the 204-pin DDR3 modules need any cleaning or re-seating after installation?

These unbuffered SODIMMs have no moving parts or heat spreaders, so no routine maintenance is required once they are seated in the iMac's slots.

What capacity ceiling will I hit first if I keep adding memory to this 27-inch 2011 iMac?

The system maximum is 32 GB across four sockets, so this 16 GB kit leaves two slots free for a future upgrade to the full limit.

How much extra heat or power draw should I expect from the 1.5 V CL9 sticks running all day?

Each module operates at standard 1.5 V DDR3 voltage with no heat spreader, adding minimal thermal load inside the iMac's existing cooling design.

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