I'm building an Asus M4A785TD-V EVO Computer with: 6gbs ram ddr3 1600,with two hd 1)120gb + 200gb which are from another computer,I'm installing Win7 HP64bit oem disc, and it's telling me that it cannot find the drives what is wrong? This is only my second build and well I need help here, why isn't it finding my drives,then it asks for the location of the drives where do I get the drives from so that the installtion can continue when I click on load drives it asks for the loction of the drives cd,dvd,floppy? or is it talking about the drives that come with the Asus cd?I'm trying to do a custom install but there was an OS on the drives before could this be the problem? Or what did I do wrong? I didn't install the software from the Asus cd yet! Or maybe I'm getting too old for this!Any directions will be appreciated!