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Green 240-pin DDR3 DIMM stick, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM5126412800DIMM 4GB DDR3 1600MHz Dell Optiplex 990 USFF memory upgrade

SKU CH-SCBV-8RKJP

4GB DDR3 1600MHz module upgrades Dell Optiplex 990 USFF systems with CL11 timing and 1.5V operation

  • Capacity4GB
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Timing11-11-11
  • Voltage1.5V
  • Guaranteed Dell Optiplex 990 USFF fit
  • 4 GB DDR3 1600 MHz module expands capacity
  • CL11 1.5 V timing for stable operation
  • Single 240-pin unbuffered DIMM installs easily
  • Lifetime exchange warranty from Computer Memory Solutions

System-Specific DDR3 Upgrade for OptiPlex 990 USFF

This 4 GB DDR3 module is built for the Dell OptiPlex 990 Ultra Small Form Factor. It runs at 1600 MHz with CL11 timing and 1.5 V unbuffered, non-ECC operation. The single 240-pin DIMM uses a 1Rx8 rank configuration and major-brand chips. Computer Memory Solutions guarantees compatibility with the listed system.

Verify Your OptiPlex 990 USFF Configuration

Confirm the motherboard has a free 240-pin DDR3 slot before ordering. The platform supports up to 8 GB total with a 64-bit operating system, but only 4 GB with a 32-bit OS. Ensure the installed OS matches the capacity you intend to use. This module is not ECC or registered, so it must match the existing memory type in the machine.

Ideal for Single-Slot Capacity Refresh

Suits owners of a Dell OptiPlex 990 USFF who need a straightforward 4 GB replacement or addition. Buyers requiring ECC error correction, registered buffering, higher densities per slot, or a different DDR generation should look elsewhere. The module is also unsuitable for systems that only accept low-profile or SODIMM form factors.

商品特色

  • Guaranteed Dell Optiplex 990 USFF fit
  • 4 GB DDR3 1600 MHz module expands capacity
  • CL11 1.5 V timing for stable operation
  • Single 240-pin unbuffered DIMM installs easily
  • Lifetime exchange warranty from Computer Memory Solutions

商品規格

BrandComputer Memory Solutions
ModelCM5126412800DIMM
Capacity4GB
Type240-Pin DDR3 SDRAM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Timing11-11-11
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemDell Optiplex 990 Ultra Small Form Factor
Package Content1 Memory RAM Stick

商品問答

Does the CM5126412800DIMM kit include any cables, brackets or tools for installation in the Dell Optiplex 990 USFF?

The package contains one 4GB DDR3 1600MHz 240-pin DIMM module only. No cables, brackets or tools are included.

Should I choose the 4GB module if my Optiplex 990 USFF runs a 64-bit operating system?

A 64-bit system supports up to 8GB total across the two slots. This single 4GB stick leaves one slot free for a matching module later.

Will the PC3-12800 rating run at 1600MHz once installed in the Optiplex 990 USFF?

Yes. The module is rated DDR3-1600 (PC3-12800) with CL11 timing at 1.5V and will operate at that speed in the supported system.

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