Dell Optiplex GX620 Tower/MT PC Motherboard HH807 F8098 Compatible Model: DELL OPTIPLEX GX620 Chipset: Intel 945G Maximum Memory: Dual Channel DIMM Support for up to 4 GB of memory Compatible Part#: F8098, 0F8098, X9682, 0X9682, HJ780, 0HJ780, MD525, CJ334, 0CJ334 Socket: LGA775