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Three green DDR3 memory sticks with black chips no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 12GB (3x4GB) DDR3 1600 CL11 Dell XPS 730X memory upgrade

SKU CH-NXD1-S6T0C

12 GB kit of three 4 GB DDR3 1600 CL11 modules built for the Dell XPS 730X desktop

  • Total capacity12 GB (3 × 4 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.5 V
  • Guaranteed Dell XPS 730X compatibility
  • 12 GB total capacity in a 3-piece kit
  • 1600 MHz DDR3 speed for responsive performance
  • CL11 1.5 V unbuffered non-ECC modules
  • 240-pin DIMM form factor fits the desktop slots

Dell XPS 730X memory kit

This 12GB kit contains three 4GB DDR3 modules built for the Dell XPS 730X desktop. Each stick runs at 1600 MHz with CL11 timing and 1.5V voltage. The unbuffered, non-ECC design matches the system's original specification.

Sustained load behaviour

The modules operate at standard JEDEC voltage without a heat spreader, so thermal performance relies on case airflow. Continuous workloads will maintain rated speed as long as the chassis provides adequate cooling across the 240-pin DIMMs.

Pre-order checklist

Verify the motherboard has three free 240-pin slots and that a 64-bit operating system is installed to address the full capacity. The system requires modules to be populated in matched pairs for dual-channel operation. Note that a 4GB configuration may report only 3.5GB usable depending on memory mapping.

How it compares

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

Price $29.99
Cheaper than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 12 GB (3 × 4 GB)
Lower than about 75% of the 20,941 comparable items (median 32 GB).
Price per GB $2.50 per GB
Cheaper than about 92% 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 nameCM5126412800DIMM
Total capacity12 GB (3 × 4 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsDell Xps 730X Desktop
In the box
Included items3 Memory RAM Sticks

Questions about this item

Does the 1.5V DDR3 1600 kit add noticeable heat or fan noise during long sessions?

These modules run at standard 1.5V without heat spreaders, so they add minimal thermal load and no extra fan noise in the Dell XPS 730X.

Will the three 4GB sticks work straight away in my Dell XPS 730X or do I need a BIOS update first?

The kit is guaranteed compatible with the Dell XPS 730X; install the three 240-pin DDR3 modules and the system recognises them without a BIOS change.

Can I keep my existing memory and add this 12GB kit alongside it?

The XPS 730X has three sockets and a 12GB maximum, so the 3 x 4GB kit fills every slot — no older modules can remain installed.

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