All PowerEdge 850 system boards (motherboards) support either PC2-4200E (533MHz) or PC2-5300E (667MHz) DDR2 ECC-registered memory DIMMS when installed in matching pairs. System boards will support up to 8GB RAM with the most current BIOS revision. RAM must be installed in pairs of matching size, rank and technology.
Dell part numbers for memory normally signify individual DIMMs, whereas third-party memory like Kingston sometimes comes in kits of two DIMMS.
All memory has been tested in working machines and is backed by our 90-day parts replacement warranty.
If you need assistance with installing memory modules, download the Dell PowerEdge 850 System User's Guide and look for the System Memory section under Installing System Components.
All prices are in USD.