I just built a new system on the i7 core platform. This is a rundown of what I used: Asus P6T Deluxe MB i7 core 920 Intel x25-M 80 GB HD EVGA 260+ Corsair Dominator 1600 memory 6GB Corsair 1000HX Windows Vista 64 bit Noctua dual fan CPU cooler Everything went smooth on the build and Windows install. Did all drives last night and shut down the system. When I got up this morning, I started it up and ran through some settings for the SDD. When I went to shut it down, it wouldn't shut completely down. The monitor would no longer recognize there was an active signal, but the MB would not power down. I am kind of at a loss for ideas as what the problem might be. I haven't done any BIOS changes other than reorder the boot preferences. My next idea is to clear the BIOS and see if that makes any changes. Another thing that is more annoying than anything is the error messages at post from what I believe is the non used SAS controller. Would disabling the controller make that go away or do I just have to deal with it telling me no drive was found?