Failing to boot BIOS

Slynet

Slynet

Slynet

Associate
Joined
13 Jun 2008
Posts
115
Hey. So last night I took off my default backplate to fit the custom one that comes with the Noctua NH-D14, then put it all back together and now the PC fails to boot. I can't even get into my BIOS, nothing is displayed on the screen, no sounds are given from the motherboard. All of my fans are spinning, the HDD is spinning and the optical drives sounds like they're working, but nothing is displayed to the screen, as if nothing is connection. I have a ATI 4870X2, none of the red diagnostic lights are showing on the back of the card. I don't have a clue what's wrong with it, I've double checked all my cables and even rebuilt most of it.

Main components:

ASUS P5Q Deluxe
Intel E8600
Noctua NH-D1
ATI 4870X2
4GB Kingston HyperX
Coolermaster 620w Modular PSU

Any ideas why it might not even be reaching the BIOS? Cheers.
 
Triple check you haven't shorted the motherboard out on the case via the backplate or any other metallic components. It's something that would cause a problem like this.
 
Check your Noctua is still seated correctly. My understanding is that a PC will cut-off in seconds if the CPU is overheating.
Also do you have your case speaker connected?
(Although your BIOS messages don't appear on screen, you may be missing some "beeps" if its not connected) Cheers :)
 
When testing the motherboard outside of the case, is it OK to test it purely with the PSU connected to the mother board and graphics card, and with my CPU cooler connected up, nothing else? On a wooden surface of course. Is it OK, in that, will it at least display the BIOS, or do I have to have the HDD and other components connected?

If so, I just did this and it still doesn't work. So either the CPU cooler isn't installed correct or something is damaged; which I'm hoping is not the case though.

I had the speaker plugged in correctly before, no beeps were given out though.
 
freddie64 said:
Thought that motherboard did not have a backplate fitted as standard.

You may have damaged the board when you removed the backplate.
Click to expand...

It doesn't have a backplate as standard.

19.jpg


20.jpg
 
Hmmm, so you haven't shorted anything out via the backplate then, because it doesn't use one...
It's possible you could have fractured the motherboard during installation of the new cooler, i've done it before and it's easy to do.

You will have to try a process of elimination, take everything out of the case, and place the motherboard on the wood like you said, then connect everything.

If it doesn't work, remove one stick of memory, then the other, then both, make sure you have your speakers plugged in, and if the case has a buzzer, connect this to the pins on your motherboard.

If you get beeps refer to your manual, if you get no beeps then see if you can try another CPU in there, your cooler should be on fine, yes it wouldn't boot properly if it was overheating, but it's only an E8600 and wouldn't exactly reach 120 degrees C in about a second.

God help you if you've fractured your motherboard, I did it before, we then found out when we propped one corner up with a piece of wood and bam, it started working, take the wood away, and it's dead again.
 
So after swapping and testing everything, I've found out it's two of the RAM slots that stops it booting; regardless of what cooler I'm using. The RAM itself is fine, I can swap them with the two working slots, but if I put any RAM stick into the two broken slots it will not boot. I don't what I have done to cause this, I didn't even really touch the RAM.

Is there anything I can try to get these working?
 
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