PC Won't Boot.

[Grumbl3s]

My motherboard is an EVGA 680i SLI
I have spent this evening fitting a Tuniq Tower 120 on to my Q6600.
It all went smoothly, or so I thought.
I used my Anti static wrist and took the pc apart on a large clean wooden desk.
Took pc apart - OK
Put it back together - OK
Plugged everything in.
Checked it all.
CPU has power.
tower has power.
4Gb RAM is in.
I plugged the extra molex into the motherboard for PCI-E power too.

When I press the on button the computer switches on for under 1 second, then goes off again, By now at the top of the motherboard shows an orange LED, next to the usual blue one.
Then pressing the on button does nothing, until you unplug and plug in the power again.

A very worried guy calling for help!
I will not be here again until the morning, but I hope someone can help.

[Corkum]

Are you sure that the new cpu cooler is seated properly? Check your mb manual as it should tell you what the lights mean. i know that with my Asus board it will convey error messages through the onboard speaker. I dont know about eVGA boards though.

[kaheiyeh]

Are you sure you remembered to flick the switch on the PSU back to ON? That happened to me once as well and I was totally oblivious to the fact that I had set the switch to OFF instead.

[Grumbl3s]

Yes i flicked the switch on the PSU, other wise it would not have come on at all.

I have tried to look what the orange light means, but can't find about it. it shows this after the pc is turned off again.

I guess I'm going to have to take it all apart again and refit it tonight.
Yuk

[kaheiyeh]

Yes i flicked the switch on the PSU, other wise it would not have come on at all.

I have tried to look what the orange light means, but can't find about it. it shows this after the pc is turned off again.

I guess I'm going to have to take it all apart again and refit it tonight.
Yuk

There's some residual power left in the board that can power it for about a second. I'd say flick it and try with both options first to make sure.

[Grumbl3s]

There's some residual power left in the board that can power it for about a second. I'd say flick it and try with both options first to make sure.

I have tried more than once....

[Xtreme]

Might be a bad PSU, try a diff one if possible...i take it your not getting any post beep?

[Kreepy Kitteh =^o.O^=]

lol a lame question but.. u DID use new thermal paste right?

[theminx]

actually i would the check the power jumpers my self ...
thermal paste and heat fry issues would result in a big mess that he would have noticed..

and your sure your getting power to the board???...

it turns on for one second then turns off, with orange light lighted, after it powers down...

and quite possibly your board may be cracked somewhere that could cause this..

that led orange light I'm betting is the light that tells ya hey you stuff isn't properly hooked up or there is some kind of conflict...

so check you power feeds check your board check the connectors to the board from the psu to make sure there properly installed ..

if non of that works take out all pci cards one by one ...you will probably find the problem by doing that ..disconnect hdd's ..if you disconnect all pci and hdd only thing left that could cause the problem would be ram you can alternate sticks etc etc...

just boot it into the bios and see if its stable...

then add cards one by one by doing the same steps....

[Kreepy Kitteh =^o.O^=]

actually i would the check the power jumpers my self ...
thermal paste and heat fry issues would result in a big mess that he would have noticed..

not always.. i could run my pc without a heatsink at all and the mobo shuts down before any damage is done.. so if he is having heat issues it could be the reason his mobo is shutting down before any damage occurs..

[=98=]

Some chips will shut themselves down before catching fire, others won't.

I saw exactly that test once on youtube, i'll look it up.

</Offtopic>

Let's not derail.

[Grumbl3s]

lol a lame question but.. u DID use new thermal paste right?

Yes, reasonably new, it's arctic MX-2 compound.
I don't see how the PSU could be the problem I have been using it since November, it hasn't come out the case since. All I did yesterday was:
Take out the graphics cards, RAM, Disconnect all the wires from the motherboard (here I made a checklist of what went where so I didn't forget to connect anything afterwards)
Then I fitted the Tuniq tower, following the included instructions. Then I replaced the motherboard in the case onto the same standoffs, and plugged everything back in, Plus a new hard drive I also got.
The whole system should be the same as it was apart with the Tuniq Tower instead of the stock cooler and a new hard drive (to be a slave).

Christ this should have been such an easy thing to do.
Was hoping to beat you OC Alex :P

[Kreepy Kitteh =^o.O^=]

Yes, reasonably new, it's arctic MX-2 compound.
I don't see how the PSU could be the problem I have been using it since November, it hasn't come out the case since. All I did yesterday was:
Take out the graphics cards, RAM, Disconnect all the wires from the motherboard (here I made a checklist of what went where so I didn't forget to connect anything afterwards)
Then I fitted the Tuniq tower, following the included instructions. Then I replaced the motherboard in the case onto the same standoffs, and plugged everything back in, Plus a new hard drive I also got.
The whole system should be the same as it was apart with the Tuniq Tower instead of the stock cooler and a new hard drive (to be a slave).

Christ this should have been such an easy thing to do.
Was hoping to beat you OC Alex :P

hmm if i was you.. take every single thing back out.. and do it again, u could have accidentaly missed somthing, Also just check ur mobo manual to make sure u have everything in the right spot and havent left anything out :)

[=98=]

I wonder whether the backplate is touching the case and thus causing bad grounding?

[Kreepy Kitteh =^o.O^=]

I wonder whether the backplate is touching the case and thus causing bad grounding?

u mean the metal spacer for affixing the tuniq tower to the mobo?

i was thinking that too.. but wouldnt the rubber and plastic spacer between them stop it from shorting out?

and the washers ontop would stop it shorting out also.. i think..