Power on lights go no boot :(

Adsta · 15 Nov 2011 at 20:07

I made this thread in the WC section but then thought it might fair better here. Shamelessly copied and pasted my most below.

Ok I am really stuck now, upset and angry.... I have been building my new WC PC (log in sig). I hit a first snag when the PSU I bought went pop. I got my new PSU through today and have been working solid to get this PC up and running tonight.

But well you guessed it hit a brick wall again... The PC will turn on all lights and fans come on, the pumps start up and swish the water around, I can hear the HDD's whiring away. So.... why am I not getting any display on my monitor ????? Im not even getting the start of bios. The PC just's sits there doing its thing. But still no boot up.

I'm lost my guess is it might be the graphics card ? I have 3x 480's. I really hope its not them because taking it all out would be a pain in the ass. I've read on internet it could be memory ? I've not tried taking any of the sticks out though.

Anyways... I was hoping maybe someone here could give me some ideas. The mobo looks fine thats all lit up. The LED error thingy says there is not reporting any errors according the the manual.

I've had to take a break from it now because it is giving me a headache and I am just getting annoyed now.

Aero · 15 Nov 2011 at 20:19

First of all try you memory, try the sticks separately, see if it boots. It could be your cards though which although a PITA it's better that having a stuffed pc. Break it down in to steps and be logical. Once you find a setup that works build on it bit by bit.

I just hope your psu didn't take out any components

goodluck.

Adsta · 15 Nov 2011 at 20:46

The PSU that went pop luckily wasnt connected to anything else other than my pumps which still work. So that would not have taken anything out.

I've not really done SLI for a while But am I right in thinking that if the 1st card doesnt work then it doesnt matter if the 2nd/3rd are or not because it needs the 1st card ? In which case I was thinking rather than taking the cards out can I not just plug the DVI into one of the other cards and just temp unplug the first card either by power or if possible try and lift it out of the PCI slot ?

I will try the memory first though.

Devrij · 15 Nov 2011 at 21:18

Do you have a multi-meter handy or could you borrow one? It would be worth testing the voltage of the grey pin on the 24pin PSU cable. If the PSU isn't sending the pwr_ok signal the whole system powers on (to allow the voltages to stabilize before boot), but without the okay from the psu it never boots. That's what happened to me. All other pins were bang on, but the pwr_ok was 0.06V when it should've been 5V.

At least when my new PSU arrives tomorrow I'll be able to confirm that, if I'm wrong I'll be so ****ed. But if you still have the same issue after removing/swapping all components then I'd definitely try that pin.