I replaced the motherboard on my hp pavilion p7 1205 (http://support.hp.com/us-en/document/c03154964) with a biostar h61mvg3 (http://www.biostar-usa.com/app/en-us/mb/introduction.php?S_ID=640#spec). I also replaced the oem cooler with an Artic Alpine 11 pro Rev.2 cpu cooler (http://www.newegg.com/Product/Product.aspx?Item=N82E16835186061). I have already installed the cpu and cooler and I have reconnected the cables, but the computer will not start. I think I may have reconnected the cables incorrectly,but I don't know which one's missing/misplaced. I really need to make sure that it's the cables and not the motherboard itself that's not working.