Computer died and will not power up anymore

[imported_Keevon]

Some time ago, I was working on my self-built system, and it suddenly just powered down. It wouldn't turn back on when I pressed the power button, so I tried to reset the switch on the power supply and on the surge protector. This also didn't help it power back on. My system was completely dead.

The first thing I tried to fix was grabbing a new power supply. After I put it in, I tried to start up the system and it was a no go. I figured something had burnt out in the mobo or CPU.

My next step (this was stupid) was to put the OLD power supply back in, and get a new motherboard with the old CPU. Once again it did not power up at all.

Next, I tried a new CPU with the previous combination. It also did not start up.

Finally, I used the NEW power supply with the new mobo and CPU and got power. However now when I hook up the connections, I don't get any POST and the system doesn't have any beep codes when I start it up. I hear the fans starting up and the drives seem to be getting power.

I've tried switching in new RAM to see if that was a problem, but it seemed like a longshot. It didn't work.

What could possibly be causing this problem? I don't think my video card is fried, but I could try throwing in a spare one I have. Also, if the video card was a problem it seems like I would be getting beep codes. Does anyone have any ideas?

 

[Ctrackstar126]

when you say working on it what exactly were you doing?

 

[imported_Keevon]

Nothing at all significant that I know of.

I had recently installed a new wireless network card and was using that, but it's no longer in my machine, and is working fine in another machine I own. When it died I was simply browsing the net.

 

[glaive]

Long shot, but you didn't mention reseting the bios...

 

[ronopp]

another long shot but there is a bios setting might not let you boot if your keyboard and or mouse is not plugged in..... check that they are ??

 

[imported_Keevon]

Keyboard and mouse are both plugged in, and it seems like even if they weren't I would at least get POST info on the screen.

I have not tried resetting the BIOS, so I'll give that a shot. I'm also going to swap in a new video card and see if that does the trick, but I'm confused by the fact that there are no beep codes coming from the mobo.

 

[imported_Helios]

Keevon, that sounds eerily similar to my problem.