Can't boot at all (not even BIOS)

[imgod22222]

Problem: I have my computer hooked up. It's been working fine until about three days ago.. I turn on my computer. All the lights (soundcard, fans, UV, case lights, etc), fans, and disk drives turn on (maybe my HDDs, i can't hear them). I do NOT get a BIOS boot screen (DFI LanParty UT Expert) nor a BIOS beep (which i do usually get). My computer will do nothing. Nothing shows up on the screen, no BIOS noise. I have never overclocked any of my components, and I don't think anything could have overheated at a max of 122F case temp. I've checked all the connections, and I've replaced the BIOS battery. And now, the only way to power off my computer is to use the switch on the PSU.

And I highly doubt its my PSU - OCZ GameXstream 700w. I have 3 HDDs, 2 DVD drives, 1 Floppy, 1 Card reader, and 2 fans, case lights, and a 7900GT.

Any ideas?

 

[pikachucrackpipe]

bios beep = successful post
since it's not posting you need to replace the bios.... more than likely

 

[hanman]

in my experience, those symptoms indicate a bad motherboard. it could possibly be your power supply as well, but my money's on the motherboard.

 

[pikachucrackpipe]

just put a big steak in there
i mean while you're spending unnecessary money

 

[fischju_original]

I had capacitors that blew out on an old motherboard for no reason, and that was after years of use. Same symptoms

 

[pikachucrackpipe]

yeah it could be
http://www.badcaps.net/tips/

btw can i still have steak?

 

[imgod22222]

No pikachucrackpipe, i still remember tha partition magic incident... And BTW the computer that crashed is the one i was trying to backup.

So.. if its a bad BIOS, how the hell do i flash it like this?

And there are no blown caps... anywhere. I checked twice.

And I doubt its my PSU, OCZ GameXstream 700w, for according to the PSU power calculator at highest cap aging, system load, and TDP i would only need 630w.

 

[pikachucrackpipe]

i agree with you, the ps is awesome don't think it's that.
btw how many computers do you fuck up lol!!

have you tried goofy things like trying to boot it without the cmos battery in the motherboard? or the jumper set to reset defaults?

back in the day, i had a computer fuck up like that over shadow memory or something (old 386) and just resetting the bios fixed it.

 

[imgod22222]

Um... as for teh goofy things, yes. I did the things mentioned

I've only fucked up one computer... the same one. Over, and over, and over again. But it's generally been minor things. I wanted to back it up in case something like this happened. I never got the chance... :'(