Hello.immediate answer please. I installed new cpu and Ram after more than 6 years. amd athlone 64dual 4600+ , kingstone 2Gb DDR2. I installed win 8.1 32bit. But sometimes windows crashes(not common blue screen). I've installed win 8 32 & 64 and 8.1 64bit but crash still happens. what's wrong??? What should I do?? motherboard is " asrock N68_S. Bios version P1.60