PC Powering Off

Housey

Housey

Housey

Man of Honour
Joined
21 Feb 2006
Posts
29,606
As title and consistently it just dies. No shut down just dies. Replaced PSU and now it won’t turn on via front button.

However, if i press the motherboard button on the back it will start, but won’t stay on and powers off the instant i remove my finger.

Error code d6 indicator suggests GPU but no obvious issues as seems to work.

ROG Strix X670E-E motherboard

Issue isn’t windows as same issue happens at BIOS level and safe mode.

Appreciate some ides as lost

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Can you try it with the motherboard out of the case to rule out any potential shorts?

Might be worth reseating the CPU ( and checking for any bent pins in the socket ) and RAM.
 
I will do that and have tested the GPU (4090), memory (DDR5 6000) and PSU (replaced old 1200 with new 1200) and all are working fine. It hasn’t moved and has been working fine for 2 years and just started playing up. The BIOS has been redone (had to hold my finger on the rear panel for it to stay on, but will reseat the 7800X3D to remove that. Nothing obvious on the motherboard but just won’t turn on anymore using front power or motherboard on/off button, only the BIOS rear panel button and as soon as I remove my finger it shuts down.



The only button that turns it on and needs me to hold it down to stay in, is the BIOS FLBK button with the white box around it.
 
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I think thats the BIOS flash button.

If its not been moved im not sure what couldve happened. Could be worth checking the front panel headers are in ok.
 
I recently had some really weird issues. Non starter. Would start then not boot windows. Constant Automatic drive repair fails..If it did boot, Would act normal then just die. No shutdown just straight OFF. Turns out my CPU was Borked.
 
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I once sent a school PC back to the supplier thinking the PSU was toast having missed the fact that someone had damaged the front USB port and neglected to report it so it was shorting the 5v line.

Did you try disconnecting everything including the header for the power switch and use the screwdriver trick to short the pins and turn it on in case the power switch has failed or an SSD etc has died and is shorting?

Are you going to try the old CPU in the new mobo / the new CPU in the old mobo to try and find the fault or just bin it off?
 
I was just thinking the same sort of thing - if there was an intermittent short on the power button, it might explain the seeming spontaneous shutdowns and problems starting up.
 
Just have to unplug absolutely everything including ports and then process of elimination.
 
wonko said:
I was just thinking the same sort of thing - if there was an intermittent short on the power button, it might explain the seeming spontaneous shutdowns and problems starting up.
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When i remove the on off button though it still doesn’t work so it’s not that.
 
Housey said:
When i remove the on off button though it still doesn’t work so it’s not that.
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It was worth checking so its another thing you can rule out, hopefully the new kit works ok but it would suck if you swapped them over and it still did the same thing.

Even a bad keyboard has the potential to shut down a PC, I've seen a damaged USB keyboard cable start smoking because there was a short and emptied half a cup of coffee out of another after the teacher said it wasn't working...
 
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Housey said:
Well it didn’t arrive despite paying for Saturday delivery…. slightly disappointing OCUK.
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DPD have absolutely sucked as of late, so it's likely not on OcUK. OcUK would still be point of contact though to arrange some kind of recompense. But open a ticket or post on the customer services board so staff actually see it.
 
Let's see what happens tomorrow but nothing from DPD yet and I usually get emails confirming it's being collected etc and nothing.

No biggie.
 
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