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Green circuit board with black memory chips, 240 gold pins, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM5126410600DIMM 4GB DDR3 1333MHz Dell Optiplex 390 memory upgrade

SKU CH-R89Q-0DSY6

4GB DDR3 1333MHz module upgrades Dell Optiplex 390 systems with CL9 timing and 1.5V operation

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • Designed for Dell OptiPlex 390 systems
  • 4 GB DDR3 1333 MHz expands capacity
  • Non-ECC unbuffered DIMM installs in standard slots
  • 240-pin 1.5 V module meets PC3-10600 spec
  • Major-brand chips backed by lifetime warranty

Targeted Dell Optiplex 390 upgrade

This 4GB DDR3 module is built for the Dell Optiplex 390 desktop. It installs as a single 240-pin DIMM running at 1333 MHz with a CL9 latency. The stick operates at the standard 1.5 V and uses unbuffered, non-ECC chips.

Suits owners of the named system.

Buyers repairing or expanding a Dell Optiplex 390 will find guaranteed compatibility. The part is not ECC registered, so it will not meet the needs of servers or workstations that require error-correcting memory. It also does not fit laptops or systems that use a different pin count or voltage.

Single decisive specification: DDR3 1333 MHz

The memory must be a 240-pin DDR3 DIMM rated for PC3-10600 at 1333 MHz. If the target computer demands a different speed, pin layout or voltage, this module will not seat or function. Match this exact specification before ordering.

How it compares

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

Price $18.99
Cheaper than about 91% 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 $4.75 per GB
Cheaper than about 80% 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 390
In the box
Included items1 Memory RAM Stick

Questions about this item

Does the 240-pin DDR3 module fit the DIMM slots on the OptiPlex 390?

Yes, the 240-pin DDR3 DIMM matches the desktop memory slots on the OptiPlex 390.

When should the 4GB DDR3 stick be replaced?

Replace the stick if the system fails to boot, shows memory errors during diagnostics, or becomes unstable under load.

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