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Green rectangular DDR3 circuit board with gold edge connectors and black memory chips visible

OWC

OWC 2GB DDR3 1333 PC3-10600 CL9 1Rx8 240-pin 1.5V Non-ECC UDIMM Alienware X51 memory upgrade

SKU CH-TSBX-4BDWB

Adds 2 GB of DDR3-1333 memory to an Alienware X51 desktop for faster multitasking

  • Total capacity2 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Designed for Alienware X51 compatibility
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • DDR3 1333 PC3-10600 CL9 for responsive performance
  • 2GB 240-pin 1.5V unbuffered non-ECC module
  • Single 1Rx8 rank DIMM for straightforward installation

Alienware X51 DDR3 upgrade

This 2 GB DDR3 module is built for the Alienware X51 desktop. It runs at 1333 MHz with CL9 latency and 1.5 V operation. The single 240-pin UDIMM adds memory capacity without ECC or buffering.

Fits standard DDR3 desktop slots

The unbuffered DIMM installs directly into a 240-pin DDR3 socket on the X51 motherboard. JEDEC compliance ensures the module works with the system BIOS at rated speed and voltage. No extra cooling or configuration is required.

Suits owners adding a single 2 GB stick

Builders needing higher total capacity or matched multi-channel kits should look elsewhere. Systems that require ECC, registered memory or a different DDR generation cannot use this module.

How it compares

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

Price $17.99
Cheaper than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $9.00 per GB
Typical for this category: the median of 20,941 items is $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 nameOWC
Part number1U3D31R802 GB
Total capacity2 GB
Product type240-Pin DDR3 Non-ECC UDIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsAlienware X51

Other versions of this model

5 more in the same range

Questions about this item

How many 240-pin DDR3 slots does the Alienware X51 have for this 2GB module?

The Alienware X51 desktop uses standard 240-pin DDR3 UDIMM slots; this single 2GB stick occupies one of them.

Does the 1.5V DDR3 1333 CL9 module run hot or loud inside the compact X51 chassis?

The module has no heat spreader and draws 1.5V at stock JEDEC speeds, so it adds minimal heat and makes no noise of its own.

Will this non-ECC unbuffered DIMM work without a matched pair already installed?

Yes — it is a standard 1Rx8 non-ECC UDIMM, so the X51 will accept it as a single stick or alongside existing DDR3 1333 memory.

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