Did I blow my computer?

[Jinru]

I recently purchased a aftermarket Heatsink and decided to install it last night. I did the usual routine of removing the motherboard carefully and installing the heat sink without a hitch. When I placed everything back in and reconnected what I thought was all the wires I started up the computer and didn't hear a post beep from the Mobo, monitor was still blank, but all the fans were running. So I turn it off and glanced back inside the case and noticed the 12v ATX power connector wasn't plugged in... I had difficulty since the huge Heatsink was blocking my vision but once I had it plugged in, I started the computer up and this time I had no response at all... No fans spinning, no post beep, nothing on screen. All I noticed was a constant thumping noise coming from my speakers when I flip the switch to the back of the PSU on.

Did I blow my PSU or maybe my mobo? I don't have any spare parts to troubleshoot what the exact problem might be. So any ideas before I purchase new parts would be appreciated.

my rig:
Gigabyte 965p DS3
E4300
2x1gb Kingston HyperX
Corsair 520W PSU
radeon x1950xt

 

[boomerang]

Did you plug in the connector from your new heatsink/fan into the motherboard?

 

[Jinru]

Yes, only wire left unplugged was the mentioned 12atx connector. Thanks for the quick response.

 

[boomerang]

You should start back at square one.

Make sure your new heatsink/fan is on correctly. Make sure any cards are fully and properly plugged in.

Did you clean off the processor and apply new compound? Did you remove the processor? Any chance you bent a pin or pins on it?

Otherwise, disconnect everything except your processor and heatsink/fan, memory and video card. Does it boot into the BIOS?

You may have shorted the motherboard to the case. Based on the work you did, I would look carefully at the I/O shield at the back. Check for springs on the shield stuffed into a port. If not, remove the motherboard from the case and see if it will boot outside the case.

Edit: Look at the second to last post. This may be relevant.

 

[Jinru]

Heatsink and cards are properly placed.

I did reapply AS5, I never removed the processor from socket so not likely.

I stripped it to your specs and the fans on the heatsink, psu, gpu started turning again! Guess that rules out a PSU? Still no boot to bios or post-beep.

Motherboard itself looks fine from what I can see. Doesn't seem to matter if it's insider or outside case.

 

[boomerang]

Originally posted by: Jinru
Heatsink and cards are properly placed.

I did reapply AS5, I never removed the processor from socket so not likely.

I stripped it to your specs and the fans on the heatsink, psu, gpu started turning again! Guess that rules out a PSU? Still no boot to bios or post-beep.

Motherboard itself looks fine from what I can see. Doesn't seem to matter if it's insider or outside case.

Reset the CMOS. Follow the directions in the manual. Did you see my edit above? Is there a power connector on your video card that is not plugged in?

 

[Jinru]

Originally posted by: boomerang

Originally posted by: Jinru
Heatsink and cards are properly placed.

I did reapply AS5, I never removed the processor from socket so not likely.

I stripped it to your specs and the fans on the heatsink, psu, gpu started turning again! Guess that rules out a PSU? Still no boot to bios or post-beep.

Motherboard itself looks fine from what I can see. Doesn't seem to matter if it's insider or outside case.

Reset the CMOS. Follow the directions in the manual. Did you see my edit above? Is there a power connector on your video card that is not plugged in?

I tried to reset cmos before making this thread and just attempted it again with still no improvement.

Just saw the edit when I posted and tried to loosen screws. I did remove the sticky to the backplate of the heatsink. Still nothing at boot up.

edit: The connector to the gpu is plugged in.

 

[boomerang]

I'm out of ideas but will post if I think of something else.

 

[Jinru]

lol, thanks for the help boomerang. At least I know it's not a PSU problem.

 

[Denithor]

If you haven't solved your problem already, try this:

1) Pull out one stick of RAM (either).
2) Reset your BIOS.
3) Boot up.

If this doesn't help you should also try the old standard - pull all essentials out and try booting as bare as possible outside the case. Mobo/cpu/1 stick ram/gpu only, clear BIOS, boot.

Tell us what happens.

 

[Quiksilver]

Originally posted by: Jinru

Originally posted by: boomerang

Originally posted by: Jinru
Heatsink and cards are properly placed.

I did reapply AS5, I never removed the processor from socket so not likely.

I stripped it to your specs and the fans on the heatsink, psu, gpu started turning again! Guess that rules out a PSU? Still no boot to bios or post-beep.

Motherboard itself looks fine from what I can see. Doesn't seem to matter if it's insider or outside case.

Reset the CMOS. Follow the directions in the manual. Did you see my edit above? Is there a power connector on your video card that is not plugged in?

I tried to reset cmos before making this thread and just attempted it again with still no improvement.

Just saw the edit when I posted and tried to loosen screws. I did remove the sticky to the backplate of the heatsink. Still nothing at boot up.

edit: The connector to the gpu is plugged in.

Leave the insulating piece on. Your short-circuiting your mobo.

 

[CoinOperatedBoy]

If you don't get a successful POST with the out-of-case build, try using the stock heatsink/fan. As stated, you very well could be shorting out the mobo with backplate of the aftermarket cooler. I had to wrap my TRUE backplate with electrical tape because it was causing instability for me.

 

[Jinru]

I fixed the problem a couple days ago. I did what Coin recommended and reinstalled the stock heatsink, still nothing. After frustration I reinstalled the zen fz120 and lo and behold it booted up with 1 beep and ran flawlessly . I'm guessing it had something to do with how the processor was seated in it's socket.

 

[CoinOperatedBoy]

Originally posted by: Jinru
I fixed the problem a couple days ago. I did what Coin recommended and reinstalled the stock heatsink, still nothing. After frustration I reinstalled the zen fz120 and lo and behold it booted up with 1 beep and ran flawlessly . I'm guessing it had something to do with how the processor was seated in it's socket.

:thumbsup: Way to go, glad it's working.