Ya the motherboard... you dont need a mobo with SLI support unless u plan on using it in the future... that is a top end mobo and I would downgrade to something cheaper like the board I suggested at first.. just make sure it is socket 939 and it SATAII. Another good canadian site is www.ncix.com ... it has a better selection for some things like cpus and mobos.. but tigerdirect.ca is very fast for shipping!!!