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Green 240-pin DDR3 DIMM module, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1333MHz 240-Pin DIMM CL9 1.5V for Dell OptiPlex 990

SKU CH-2E77-2PWZ7

4GB DDR3 1333MHz 240-pin DIMM CL9 1.5V module for Dell OptiPlex 990 DT/MT/SFF systems

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • 4GB capacity boosts Dell OptiPlex 990 responsiveness
  • DDR3 1333MHz speed matches system specification
  • CL9 latency supports stable operation
  • 5V unbuffered design fits DT, MT, SFF, Ultra
  • 240-pin DIMM installs directly into compatible slots

System-Specific DDR3 Module

This 4 GB stick is built for Dell OptiPlex 990 desktop and tower configurations. It carries the CMS CM5126410600DIMM part number and is tested for direct compatibility with DT, MT, SFF and Ultra chassis. The module installs in a standard 240-pin DDR3 slot without extra configuration.

Compatibility Focus

The part suits owners who need a single 4 GB upgrade for a supported OptiPlex 990. It will not work in systems that require ECC, registered memory, a different pin count, or a voltage other than 1.5 V. Buyers with other Dell models or non-DDR3 platforms should verify their motherboard specifications first.

Decisive Specification

The 240-pin DDR3 interface running at 1333 MHz (PC3-10600) with CL9 timing and 1.5 V unbuffered operation determines whether the module fits and functions. If the target system calls for a different speed, latency, voltage or form factor, this stick is not the correct match.

How it compares

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

Price $16.99
Cheaper than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.25 per GB
Cheaper than about 83% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126410600DIMM
Total capacity4 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 items1 Memory RAM Stick

Questions about this item

Does the DDR3 1333 MHz rating cap the memory bus at PC3-10600 speeds on the Dell OptiPlex 990?

Yes, the module is rated DDR3 1333 (PC3 10600) and will run at that data rate on the OptiPlex 990 platform.

Will the 240-pin DIMM fit the DT, MT and SFF chassis of the OptiPlex 990?

The 240-pin DDR3 DIMM form factor matches the memory slots used across the OptiPlex 990 DT, MT and SFF models.

Do I need to configure anything in BIOS after installing this unbuffered non-ECC stick, or is it plug-and-play?

The module is unbuffered, non-ECC and runs at standard 1.5 V, so the OptiPlex 990 detects it automatically with no BIOS changes required.

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