Okay, so recently I bought a barebones computer kit and configured it myself. The parts I used were all supposed to be compatible with the motherboard, but as soon as I turn it on I get a bunch of crippling errors. All of them amount up to me being unable to boot Windows, and in one case, even the BIOS. First scenario: I turn on the computer (thank God that works fine), BIOS doesn't boot. On the motherboard (a Biostar TA790GX 128M), there are 2 LED status lights. Both of them are supposed to be on. LED 1 is on, LED 2 is not, indicating what the manual calls a "memory error". I've tried multiple sticks of RAM, in different RAM slots, and the result is always the same: success is completely random. Second scenario: On rare occasions, I am given the option to run Windows Start-up Recovery, seeing as how my computer hardly ever starts up properly. I choose to run it, and am given a BSOD with the error message "Machine_Check_Exception". At this point I restart the system, only to encounter scenario 1 again. Final scenario: I turn on the machine, BIOS loads up, no BSODs pop up, and I manage to get all the way to the Windows loading screen, only for the computer to suddenly reset and hang, sending me back to scenario 1. So, what should I get replaced? Is it the motherboard that's acting up? Or maybe my hard drives are corrupted? Or is everything completely FUBAR and I should just get a new computer and start rebuilding my life?