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The Best alienware x51 r2 ram upgrade of 2023 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best alienware x51 r2 ram upgrade of 2023. Check our ranking below.
2,790 Reviews Scanned
- Computer Memory Solutions guarantees compatibility with models provided in description.
 - Memory Type: Non-ECC DIMM, 240-Pin
 - Speed: DDR3-12800, 1600 MHz
 - 2 Piece Kit
 - Product appearance may vary. Picture for reference only. limited lifetime warranty when bought directly from computer memory solutions
 
- 16GB (2 sticks of 8GB) DDR3 1600MHz PC3-12800 Ram Memory Modules
 - 2rx8 1.5V 240-Pin Non-ECC Unbuffered DIMM (Non-ECC UDIMM)
 - Designed for ALIENWARE X51 R2
 - All A-Tech modules undergo quality assurance testing to ensure dependable and reliable performance
 - A-Tech Brand Lifetime Warranty + Free United States Based Technical Support
 
- Compatible Memory (RAM) Upgrade Designed for Dell Alienware X51 R2 (Equivalent to SNP66GKYC/8G, A6994446, 66GKY, 066GKY)
 - 8GB Module ( 1 x 8GB ) | DDR3 1600 MHz ( PC3-12800 / PC3-12800U ) | DDR3 DIMM ( 240-Pin ) | Non-ECC UDIMM ( Unbuffered DIMM ) | 2Rx8 - Dual Rank x8 | 1.5V - DDR3 Standard Voltage
 - NOT COMPATIBLE WITH SERVER SYSTEMS: This module is a Non-ECC Desktop DIMM module and can ONLY be installed alongside other Non-ECC DIMMs modules. Please refer to your system manual for proper memory seating and channel guidelines.
 - Maximizes the performance of your system by speeding up loading times, boosting responsiveness, and improving the ability to support greater workloads
 - A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
 
- 16GB KIT (2 x 8GB) DIMM DDR3 NON-ECC PC3-12800 1600MHz RAM Memory
 - Genuine A-Tech Memory
 - Lifetime Warranty
 - Designed For Alienware X51 Series. (See Compatibility List Below)
 
Last update on 2025-09-09 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: Can a Dell Alienware X51 R2 memory upgrade fail?
A: Get proven Dell Alienware X51 R2 memory upgrades here. We ship approved, certified and OEM qualified modules to ensure total Dell Alienware X51 R2 system memory reliability. Nothing is perfect. Sometimes things happen. If your Dell Alienware X51 R2 memory upgrade fails at anytime–we will ship a replacement same day.
Q: What kind of graphics card does Alienware use?
A: It’s currently running a NVIDIA (R) GeForce (R) GTX 745 with 4GB DDR3 and the case only has a Alienware 240 Watt Power Supply. I know that greatly reduces my options but was hoping to get the best available for this.
Q: Do you need DIMM for X51 R2 system?
A: Factory configured X51 R2 systems often have smaller, less expensive modules. As more memory is required different density and technologies are needed. DIMM type mixing is never recommended. What is an unbuffered memory module?
Q: Why is my X51 r2 not running at 1600Mhz?
A: It is because the 1600mhz speed needs to be activated via XMP (which we cannot access to toggle on the X51 R2). From what I have managed to find out, the HyperX Fury 1600mhz sticks I listed earlier are plug and play (unlike the ripjaws) and are supposed to automatically operate at the maximum speed supported by the CPU/Motherboard.
