Computer Memory Solutions CM5126412800DIMM 4GB DDR3 1600MHz Dell Vostro 3900 memory upgrade

Dell Vostro 3900 4GB DDR3 upgrade

This 4GB DDR3 1600MHz module is built specifically for the Dell Vostro 3900 desktop. It uses a 240-pin DIMM form factor with a 1Rx8 rank configuration and runs at 1.5V. The non-ECC, unbuffered design matches the original system requirements for a direct drop-in installation.

CL11 11-11-11 timing under load

The module operates at CL11 with 11-11-11 timings at the rated 1600MHz speed. Major brand chipsets are used to maintain stability during sustained workloads rather than only brief bursts. The absence of a heat spreader relies on the chassis airflow of the Vostro 3900 to keep temperatures in check over long sessions.

Expands from 2-slot 16GB ceiling

The Vostro 3900 provides two memory sockets with a maximum supported capacity of 16GB on a 64-bit operating system. Adding this single 4GB stick increases total memory without occupying both slots, leaving room for a second module later. Buyers who need more than 16GB total capacity or who require ECC error correction cannot use this kit.