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Two green 240-pin DDR3 DIMM sticks, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM5126410600DIMM 8GB (2x4GB) DDR3 1333MHz CL9 1.5V Non-ECC DIMM

SKU CH-548M-4HP5A

8GB DDR3 kit in two 4GB sticks at 1333 MHz CL9 1.5V for Dell OptiPlex 990 systems

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • 8GB kit upgrades Dell Optiplex 990 systems
  • 1333 MHz DDR3 speed matches PC3-10600 spec
  • CL9 9-9-9 timing at 1.5V standard voltage
  • 240-pin unbuffered non-ECC DIMM form factor
  • Two 4GB modules enable dual-channel configuration

Target System

This 8GB kit is built for Dell Optiplex 990 desktops in DT, MT, SFF and Ultra chassis. It suits owners of those machines who want to reach the 16GB maximum allowed by a 64-bit operating system.

Decisive Specification

The modules run at DDR3 1333 (PC3 10600) with CL9 timing at 1.5V. A 32-bit OS will only recognise 4GB total, so a 64-bit environment is essential to use the full capacity.

Installation Notes

Two unbuffered 240-pin DIMMs install directly into the motherboard slots without tools. The kit lacks heat spreaders, so clearance is rarely an issue, but the system must be powered off and unplugged before handling the memory.

How it compares

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

Price $36.99
Cheaper than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $4.62 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126410600DIMM
Total capacity8 GB (2 × 4 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL9
Memory timings9-9-9
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsDell Optiplex 990 Dt / Mt / Sff, Ultra
In the box
Included items2 Memory RAM Sticks

Questions about this item

What does 1333MHz mean for my Dell Optiplex 990?

The 1333MHz rating is the memory clock speed; the Optiplex 990 will run these DIMMs at that frequency provided the BIOS supports it.

What does PC3 10600 tell me about the interface?

PC3 10600 is the DDR3 module standard that defines a 240-pin unbuffered non-ECC DIMM running at 1333MHz with CL9 timing.

Will these 240-pin sticks fit my Optiplex 990 DT, MT or SFF?

Yes, the kit contains two 240-pin DDR3 DIMMs designed for the Optiplex 990 desktop, mini-tower and small-form-factor chassis.

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