DELL OPTIPLEX GX620 MOTHERBOARD HH807 0HH807 F8098 Manufacturer:Dell Dell part number:GX620 Dell Compatible Part#: HH807 0HH807 F8098 0F8098 X9682 0X9682 HJ780 Socket: LGA775 Supported Memory: DDR2 Maximum Memory: Dual Channel DIMM Support for up to 4 GB of memory