Reset BIOS. Pull all memory sticks out, put one in. Run PC. If you have different video card, put it in. Do you run onboard sound, if so, disable it and see if it still locks up. Have you ran PC fine before, if so, when did it start to lockup? There is definatly something in hardware drivers that coasing this. Yeah, before you do anything, disable your LAN card, my guess is that you run one on board, so do it in BIOS.
PS: It is not a big deal to find what is coasing the problem, you just have to play with it for a bit. If you want to SAVE yourself time, reinstall windows first, see if that will solve driver issue (I hope it will😉
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