We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green bare circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM5126412800DIMM 4GB DDR3 1600MHz memory upgrade for Dell Optiplex 790 MT DT SFF

SKU CH-1DEP-WKZSX

4GB DDR3 1600MHz unbuffered DIMM validated for Dell Optiplex 790 MT, DT and SFF desktops

  • Capacity4GB
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Timing11-11-11
  • Voltage1.5V
  • 4GB DDR3 module adds responsive capacity for everyday tasks
  • 1600MHz speed with CL11 timing delivers quick data access
  • 5V unbuffered design runs cool without a heat spreader
  • 240-pin DIMM fits Dell Optiplex 790 MT, DT and SFF desktops
  • Single 4GB stick leaves three slots open for up to 32GB total

Dell Optiplex 790 memory upgrade

This 4 GB DDR3 module is built for Dell Optiplex 790 MT, DT and SFF desktops. It uses a 240-pin DIMM form factor and runs at 1600 MHz with CL11 timing. The kit contains a single unbuffered, non-ECC stick.

Low-voltage DDR3 operation

The module runs at 1.5 V and has no heat spreader, keeping power draw modest in normal office workloads. Passive cooling is sufficient for typical desktop use. Noise and thermals remain at stock system levels.

Adds capacity to compatible Optiplex 790 systems

The platform supports up to 32 GB across four sockets, so this stick suits builds that need more multitasking headroom. It is not for systems that require ECC or registered memory. Buyers needing higher density per slot or faster speeds must look elsewhere.

Highlights

  • 4GB DDR3 module adds responsive capacity for everyday tasks
  • 1600MHz speed with CL11 timing delivers quick data access
  • 5V unbuffered design runs cool without a heat spreader
  • 240-pin DIMM fits Dell Optiplex 790 MT, DT and SFF desktops
  • Single 4GB stick leaves three slots open for up to 32GB total

Specifications

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 790 MT/DT/SFF Desktops
Package Content1 Memory RAM Stick

Questions about this item

How do I install this 240-pin DDR3 DIMM in my Optiplex 790 and which step is often missed?

Align the notch on the module with the slot key, press firmly until both side clips click shut, then verify the BIOS shows the new 4GB at 1600 MHz.

What maintenance or replacement will this CL11 1.5V module need over time?

No scheduled maintenance is required; if a stick fails it is covered by the limited lifetime warranty from Computer Memory Solutions.

What limit appears first when this 1Rx8 unbuffered kit runs sustained workloads?

The system maximum of 32 GB across the four slots is reached before any thermal or voltage ceiling on this module.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.