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Green circuit board with gold contacts and black memory chips

OWC

OWC 8GB DDR3 1600 CL11 2Rx8 240-pin 1.5V Non-ECC UDIMM for Alienware X51 R2

SKU CH-X687-H836H

Single 8 GB DDR3 1600 CL11 240-pin UDIMM built for the Alienware X51 R2

  • Capacity8GB
  • Type240-Pin DDR3 Non-ECC UDIMM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.5V
  • ECCNo
  • 8GB capacity expands multitasking headroom for Alienware X51 R2
  • DDR3 1600 CL11 timing delivers responsive desktop performance
  • 240-pin UDIMM form factor fits the X51 R2 memory slots directly
  • 5V JEDEC standard voltage ensures stable, warranty-safe operation
  • 2Rx8 unbuffered design installs easily without extra configuration

Targeted upgrade for Alienware X51 R2

This OWC module adds 8GB of DDR3 1600 memory to the Alienware X51 R2 desktop. It is a single 240-pin UDIMM rated at PC3-12800 with CL11 latency and 1.5V operation. The stick is unbuffered, non-ECC and organised as 2Rx8. It is designed to meet OEM specifications for that specific system.

Suits owners of the Alienware X51 R2 needing more

Builders working on any other platform should look elsewhere because the module is validated only for that model. Systems requiring ECC, registered DIMMs or a different DDR generation will not be compatible. The lack of a heat spreader also means it fits tight spaces but offers no extra cooling surface.

The deciding specification is the Alienware X51 R2

That single qualification determines whether the part will work in your machine. All other ratings — speed, voltage, rank and pin count — are standard DDR3 1600 values, but only the system-specific validation guarantees trouble-free operation in the X51 R2.

Points forts

  • 8GB capacity expands multitasking headroom for Alienware X51 R2
  • DDR3 1600 CL11 timing delivers responsive desktop performance
  • 240-pin UDIMM form factor fits the X51 R2 memory slots directly
  • 5V JEDEC standard voltage ensures stable, warranty-safe operation
  • 2Rx8 unbuffered design installs easily without extra configuration

Caractéristiques

BrandOWC
Part Number1U6D32R808GB
Capacity8GB
Type240-Pin DDR3 Non-ECC UDIMM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemAlienware X51 R2

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Questions sur cet article

Will the 240-pin DDR3 UDIMM fit the Alienware X51 R2 motherboard slots?

Yes, the 240-pin DDR3 UDIMM form factor matches the desktop DIMM slots used in the Alienware X51 R2.

What is the correct orientation step when installing this 2Rx8 module into the X51 R2?

Align the notch on the 240-pin edge connector with the slot key, then press firmly until both retention clips click shut.

Does this 1.5V non-ECC kit require any firmware updates or battery replacement later?

No firmware or battery maintenance is needed; the JEDEC-standard DDR3 module runs at 1.5V without ECC overhead.

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