Description The MSI 645 Combo-L ATX motherboard is based on the SIS 645 chipset and is designed to support a Socket 478 Intel Pentium 4 processor with 400MHz frontside bus. The board supports two 184-pin unbuffered DDR333/DDR266/DDR200 or two 168-pin unbuffered PC100/133 SDRAM for up to 2GB memory size and features integrated audio, LAN and USB 2.0 ports. In addition, it has an AGP 4X graphics card slot, six PCI slots, and ATA/133 drive support. The board also comes with several MSI special featurs such as Live Update, Fuzzy Logic, PC Alert, and i-Speeder.