The motherboard is the backbone of your entire system, all internal components are connected to it.
All motherboards will accept separate video cards, and in some cases also have integrated/built-in video. Upgraded motherboards offer room for additional memory slots, usually 4 x 240-pin DDR2 memory modules. High end boards may also have additional features such as: Firewire, RAID, Dual Video Card Support, HDMI, Additional USB, HD Audio, Gigabit LAN, eSATA and WiFi. Click on the name of the for complete specifications. For more motherboard options, click on the links to the left.
 | Asus P5N73-AM2x 240pin DDR2-800, Max 4GB 1x PCI-Express x16 Slot 2x ATA-133 Drives; 4x SATA2 Drives Integrated GeForce 7050 Graphics [included in price] |  | Asus P5Q4x 240pin DDR2-1200/1066/800, Max 16GB 1x PCI-Express x16 Slot 2x ATA-133 Drives; 6x SATA2 Drives [add $81.78] |
 | Asus P5QL PRO4x 240pin DDR2-1066/800, Max 16GB 1x PCI-Express x16 Slot 2x ATA-133 Drives; 6x SATA2 Drives [add $43.02] |  | Asus P5N-D4x 240pin DDR2-800, Max 8GB 2x PCI-Express x16 Slot 2x ATA-133 Drives; 4x SATA2 Drives [add $101.16] |
 | Asus P5QL-EM4x 240pin DDR2-1066/800, Max 8GB 1x PCI-Express x16 Slot 2x ATA-133 Drives; 6x SATA2 Drives Integrated Intel GMA X4500 Graphics [add $61.20] |  | Asus P5Q-E4x 240pin DDR2-1200/1066/800, Max 16GB 2x PCI-Express x16 Slot 2x ATA-133 Drives; 6x SATA2 Drives [add $113.28] |