computer won't boot

[Beyond]

specs:

dfi ultra-d
corsair xms 2gb
3800+ x2 dual core
bfg 7800gt oc edition
audigy 2 zs
raptor
antec truepower 2.0 550watt psu
logisys monitor with vga to dvi converter

built/installed everything along with all new drivers and sp2. computer was working fine.. got some bf2 in as well as fear. i was playing fear for a while then went out. fear was running just fine. after playing fear all that was running was steam which was downloading dod:s and hl2 demo and aim with an away message up. i came home later and the monitor looked like it was in standby mode (power led flashing and black screen.) i moved the mouse/hit keys and the computer never came back from what i thought was standby mode. i tried rebooting the computer, and the same thing happened. i noticed that when i unplugged the monitor from the graphics card the monitor didn't display no signal, so at first i thought the monitor was screwed up. but when i removed the converter it did display the no signal screen. when i boot the computer, i listen to see if the xp music plays sometime as the computer boots.. it doesn't, although i can't guarantee the sound is even on because i cannot remember.

ideas?

 

[Beyond]

fixed it.. power led or hdd leds weren't connected, and when i connected the power led it booted. still can't get the hdd led to work though, but if the computer works, that's fine with me

 

[Praetor]

Um ... you dont need the LEDs to boot the machine. (which should tell you that you've not solved the problem)

 

[Beyond]

Um ... you dont need the LEDs to boot the machine. (which should tell you that you've not solved the problem)

yeah, it doesn't make any sense, however i found a guy who was having the same problem with very similar equipment to mine.. and he said that the leds were the solution for him. it didn't work right before i hooked the power led up though, but that could just be coincidence..