Dell PowerEdge 1850 Memory RAM

All PowerEdge 1850 system boards support PC2-3200 (400MHz) DDR2 fully-buffered, ECC-registered memory DIMMS when installed in matching pairs.  All system boards will support up to 4x4GB DIMMS for a maximum of 16GB RAM with the current BIOS revision.

If you need assistance with installing memory modules, please see Dell's instructions below.

Dell PowerEdge 1850 Memory Installation Guide