ASUS P5KPL-VM/S.

Socket: LGA 775 (compatible with your Intel Core 2 Quad Q8400) • Chipset: Intel G31 + ICH7 • Memory: 2 x DDR2 DIMM slots (up to 4GB total, 800/667 MHz) • Expansion Slots: • 1 x PCIe x16 • 1 x PCIe x1 • 2 x PCI • Storage: • 4 x SATA 3Gb/s • 1 x IDE • Back Panel Ports: • PS/2 for keyboard and mouse • VGA • USB 2.0 • Ethernet • Audio jacks