baffled - power button issue.

[labbby]

So this is a new one for me. I have a bit of a bizarre situation going on with the power button on my rig.

I used to have a Corsair 900D case but after spilling some coffee over the front end of it I noticed that the power button had become sticky then after a while it stopped working all together, this wasn't a big deal because I wanted to replace that big old thing anyway.

So last week I ordered the Lian Li 011D and all was well, the power button on it was doing exactly what it was meant to do until today. The power button will not turn the machine on but it will turn it off.

Interestingly if i reseat the headers with the PSU turned off, once i turn it back on again the button will power up the rig but only once then goes back to not responding.

I've tried the following -

bios update.
cmos reset.
reseating the headers and cleaned them.
checked psu cables.

I'm stumped, I've never had an issue like this before. All i can think of is the JFP1 header is failing on the board but if that was the case would it shut the machine down every time ?

The only thing I have changed since getting the new case was a AGESA windows update.

Any ideas ?

I think my rig is in the sig but if not -

MSI tomahawk x570
5900x
4090
PSU is xfx 1250W black edition.

 

[labbby]

+1 for ruling out the power button with a temporary button or just shorting the pins

I don't think it's the actual button unless I'm unlucky and had two faulty buttons on two cases.

Ill give it a go now.. Ill short it now though.

 

[labbby]

How old is this? (The reviews I can find suggest 2011-2014?)

I'd suggest it's actually the PSU failing to start rather than an issue with the power button.


To rule out the button you could try shorting the two power switch pins of the JPF1 header with something metallic e.g. end of a screwdriver

Yeah it's getting on a bit, i think it was 2012 I got it.

Interestingly (no idea if this is an actual thing) but if I flick the PSU off then on quickly it will power up the rig.

 

[labbby]

Yep could also try using the reset button for the power button


But again looks like it might just be a failure mode of this PSU design:

XFX Pro 1250w power on issue!

Have a system with an XFX Pro 1250w that doesn't want to power the system on until you've switched it on/off multiple times! Been working fine for...

forums.guru3d.com

Ah brilliant find. Yeah it won't let me short it.

I guess it's new PSU time. Thanks for the help guys.

I see the PSU market has gone nuts as well

 

[labbby]

Are you going ATX 3.0? The bequiet 12 M is reasonably priced on OCUK, most others are near (or above) £200 for 1000 watt

I looked at that but ended up going for a MSI 1000w ATX 3.0 for 169.99 ill probably regret it but hey ho.