Another Dead Computer Thread

[hobojoe]

E: Sry I Misspelled Thread

Hey all!, been awhile since I posted here, but anyways.
I have a problem with my computer booting the bios. I have a ASUS P5NSLI (I know old school.), and on it you have to switch this card http://i258.photobucket.com/albums/hh245/hobojoe42/Capture.png
to enable dual video cards. So I did and now my computer seems to have died.
The HDD light stays solid for 15secs than goes blank. Nothing appears on the screen.
I tried resetting the CMOS, RAM, checked for a broken capacitor, made sure all the lights and fans where running
I even putting the EZ SELECTOR card back to single card position.
But nothing seems to be out of the ordinary, other than it being dead.

So I'm stumped, I'm pretty sure it's not the power supply. Everything was running fine
before I tried to switch the card around. If anyone has experienced this before and knows a quick fix for it
that would be awesome, cause I really don't want to buy another MOBO right now.

SYS SPECS:
Intel Core 2 Duo E6400 2.13ghz
2X BFG 9600 GT 512 OC
470W Power supply
3GB DDR2 @ 333mhz
P5NSLI Mobo

Thanks

[Cojafoji]

if it doesn't POST when you turn it on, it's kaput. when you switched the selector, you removed the second video card right? and when you reset your bios and cmos, you replaced the jumper?

[Corndogman]

Power supply might not have been powerful enough to run dual cards, and when you tried to it burned itself out. but that's just my uneducated guess. 470w doesn't seem like that much to me for running dual cards though.

[hobojoe]

@ Cojafoji

Yes. I tried it as may ways as I could, tried putting it back to normal settings with the one card an the EZ card back in the single slot.
And I reset the Bios by removing the CMOS battery for 1/2 hour. Never could find the jumper on that thing.

@ Corndogman

I was able to run everything with that PSU, I was trying to enable SLI, when I found out about the EZ card thing.
But I was running both cards without any stability issues before.

[Cojafoji]

yeah looks like you only need 350w to run that computer. you have keeeeeeeeeled the mother board.

[hobojoe]

Well is there some way to verify/test that its the Mobo? For all I know it could be the processor to.

E: Well WTF? I left it alone for a night, without messing with it. I plugged in the power and
the damn thing turned on! I'm completely blow away, to think I was looking at an i7 CPU and MOBO combo on
Newegg a minute ago.

Anyway thanks for your help, hopefully it doesn't do what ever it did again.