So for the last 7 months or so I've been having random complete lock-ups. Will happen during periods of inactivity, heavy use, medium use, whatever. Totally random times. I've thus far figured out that it is not my video card, ram or PSU. I've decided to rebuild my computer keeping the parts that I know work. Right now I'm using an ASUS K8V deluxe mobo and an amd athlon 64 3000+, thinkin bout upgrading to an msi neo2 platinum and an amd 64 3500+. Anyways, my question is, could the other devices in my computer like the cd-rw, floppy drive, or sound card be causing these crashes? I want to buy them when I buy the rest of the stuff I need. Also, is that a good combination?