ASRock P4COMBO Socket775/478 ATX AGP DDR Motherboard with Sound ASRock P4COMBO Socket 775 478 ATX AGP DDR Motherboard General Features: Intel 848P + ICH5 chipset Socket 775 and 478 (only one CPU may be used at a time) Supports up to 2 GB DDR RAM (non-ECC) Supports DDR 266/333/400 MHz Integrated AC97 C-Media 9739 audio chipset Integrated 10/100 Fast Ethernet Two (2) IDE channels Two (2) SATA channels One (1) floppy disk channel / MOTHERBOARD ONLY