Computer Memory Solutions 256MB PC133 DIMM 16C

256MB PC133 DIMM for legacy systems

This 256MB PC133 DIMM provides 0.25GB of SDRAM for older desktops and workstations that require 168-pin unbuffered memory. It operates at 133 MHz with CAS latency 3 and 3.3V voltage. The module uses a 2Rx8 rank configuration with major brand chipset components.

Sustained operation at 133 MHz with CL3 timing

Under continuous load the module maintains its rated 133 MHz speed and 3-3-3 timing without throttling. Unbuffered design means the memory controller drives each signal directly, so stability depends on the host chipset and trace quality. All installed modules run at the slowest module's performance level.

168-pin DIMM interface limits total capacity

The 168-pin DIMM slot and PC133 bus restrict upgrades to SDRAM technology and 3.3V signalling. A 64-bit operating system is required to address more than 4GB of total system memory, but the platform chipset typically caps usable memory well below that ceiling. Mixing modules forces the entire array to the lowest common speed.