I recently purchased an Asus M3A78-CM Motherboard to replace my ASUS A8N-SLI mobo. I want to use my existing hard drive which is a Maxtor 160GB SATA/150. It worked fine in my other motherboard but I put this new motherboard in my case and I went to boot and it wouldn't. I get the POST beep, then the ASUS logo screen then a black screen then it just loops from there. I can enter the BIOS and my hard drive is there and hitting F8 will bring up the Windows Advanced Options menu but selecting anything there just puts it back into the looping. I am actually using the motherboard in question at this moment but using a Ubuntu live version which works pretty well without installing it. As I am in Ubuntu, I can see my hard drive and even access all the filles on it and use them as I choose, so I know the hard drive is there and working. So what gives? You can't hardly get anything connected wrong on the motherboard. Any suggestions are greatly appreciated. I need help.