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Two green DDR3 DIMM modules, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 16GB (2 x 8GB) DDR3 1600MHz memory upgrade

SKU CH-N7P4-WWQPX

A 16 GB dual-channel kit of 1600 MHz DDR3 DIMMs validated for the Alienware X51 R2 desktop

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.5 V
  • 16 GB total capacity from two 8 GB modules
  • 1600 MHz DDR3 speed rated at PC3-12800
  • CL11 latency with 11-11-11 timing at 1.5 V
  • 240-pin unbuffered non-ECC DIMM form factor
  • Guaranteed compatible with Alienware X51 R2 desktop

Alienware X51 R2 16 GB kit

This 16 GB kit contains two 8 GB DDR3 DIMMs rated at 1600 MHz with CL11 timing and 1.5 V operation. The modules are unbuffered, non-ECC and use a 240-pin interface. They are built with major-brand chips and carry a limited lifetime warranty from Computer Memory Solutions.

Builders upgrading an Alienware X51 R2

The kit matches the system’s maximum supported capacity of 16 GB across its two slots. Buyers who need more memory or who are working with a different motherboard should look elsewhere because this kit is validated only for the X51 R2 platform.

Two matched sticks simplify installation

The pair is sold as a single kit so both modules share the same speed, latency and voltage ratings. This removes the guesswork of mixing separate purchases and helps the X51 R2 run in dual-channel mode without further configuration.

How it compares

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

Price $40.99
Cheaper than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $2.56 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM10246412800DIMM
Total capacity16 GB (2 × 8 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsAlienware X51 R2 Desktop
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the Alienware X51 R2 need both DIMM slots filled for this 16GB kit to run?

The Alienware X51 R2 supports a maximum of 16GB across two sockets, so this 2 x 8GB kit fills both slots and reaches the system limit.

Will these CL11 1.5V modules work with any existing DDR3 memory I keep in the X51 R2?

The X51 R2 only has two DIMM sockets and this kit occupies both, so no older modules can remain installed alongside it.

How can I confirm the kit is running at DDR3 1600 with 11-11-11 timings after installation?

Check the memory speed and CAS latency in the system BIOS or with a tool such as CPU-Z; they should show 1600 MHz and CL11.

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