MSI G31TM-P21 LGA 775 Intel G31 Micro ATX Intel Motherboard - Retail CPU Type: Core 2 Quad / Core 2 Duo / Pentium / Celeron FSB: 800/1066/1333MHz South Bridge: Intel ICH7 Number of Memory Slots: 2240pin Memory Standard: DDR2 667/800 Maximum Memory Supported: 4GB Channel Supported: Dual Channel Chipset: Intel G31 VGA:Intel GMA 3100 8MB/BIOS 256MB/DVM USB - x1 PCI-E x16 - x2 PCI - x2 Audio: HD 8CH