PCI Express x8 - DIMM 240-pin , 2.0 ( 0.0 ) x Memory AMD Athlon 64 3800+ / 2.4 GHzAMD Athlon 64 3800+ / 2.4 GHz .64-bit processor Yes Installed Size 1.0 GB / 2.0 GB (max) .Technology DDR2 SDRAM .Memory speed 667.0 MHz .RAM form factor DIMM 240-pin .RAM features Two DDR channels .RAM configuration features 2 x 512 i just order 2 GB of ramType Integrated .Graphics Processor / Vendor NVIDIA GeForce 6100 Shared video memory (UMA) .Max Allocated RAM Size 128.0 MB Has manf power supply.