computer noob talking
heres my problem...
My computer crashed so then i restetted it. then i got some screen saying press f1 to conintue, esc to etc etc. ( it said some problem with bios checksum or somthing, i DONT remember) So i pressed f1 and my computer started up fine. Later when i restarted my computer, my monitor wont go on (stays black) and there is a constant noise in my computer (not the start up noise). So i checked my computer and i didnt find anything wrong, but it STILL wont turn on.

So i try to turn it on once again, still wont work. While it was on, i turned of the power supply on the back of the computer then turned it back on. Then my computer started up, working fine. I dont knonw what the problem is, but that seems the only way to get it on.

So that means my computer still works and is not dead (i HOPE). maybe it was some changes in settings i did before it happened( dont remember what they were), i dont know....

Please helpHow about a detail or two regarding computer hardware, operating system, service packs, etc.?i got a geforce 4 ti 4200 AGP video card, windows xp

my monitor is a sony cpd-220gsanyone please?Sounds like a power supply problem, don't you think?whats wrong with it?I would try replacing it with a known working unit (or a new one) and see if all the problems disappear. There are other possible causes, but this is the most LIKELY.