trawling the forums to see if there was others having similar problems to me, and here we have a thread
Having exactly the same issue (build specs in my sig).
It locks up 100% if idle, keep it active and it'll keep going for most part but eventually will lock up even though temps, are looking good.
I've disable every power save utility I can find in windows, BIOS, everywhere.
Yet, if I open explorer I still have to wait for my harddrives to power up?!
I have more than 8GB of DDR - but notice that there are very few 4GB sticks on the memory list
memtest is ok for all sticks
I also have difficulties with BIOS updates (have gotten to F5, but can't move beyond that with @BIOS or QFlash despite downloading about 20times at this stage - keep getting this flash isn't for this board!).
Have been going nuts - removing this and that, and trying to figure out what is going on...
I'll look into the LAN option - but seriously - this is my only connection to the outside world.