Odd hardware issue

[ShivP]

Hi all,

Had a strange hardware issue today. Was on my PC doing some light work, all running fine. Suddenly, both my screens black screened. Hit reset switch, wouldn't do anything, same with holding the power button.
I had to hard reset using PSU switch. Booted back up, got into windows start OK, as soon as I logged in, black screen again.
Reset again, would not boot at all. Power would come on but no video output, no lights on keyboard or anything.
Tried a couple more times, left it running for a while after still black screen. Then got into BIOS... stayed in BIOS for a few seconds, then black screened again.

Swapped out my GPU with another PC, no changes in behaviour.
FINALLY got into windows just now (reset BIOS settings, and re-enabled XMP), and it's weirdly just working fine now. No idea what caused these issues....

Anyone any ideas? Ruled out GPU ut thats it really. RAM is fairly new, PSU is probably my primary thought as it's fairly old now but any other suggestions? Probably not SSD/HDD as it wouldn't get into BIOS right? CPU maybe?

Thanks

 

[mickyflinn]

Download memtest and check for errors.

 

[ShivP]

Download memtest and check for errors.

Good shout will do

 

[ShivP]

Ran memtest for few hours, no errors.
PC is still doing it

 

[Game]

did all your usb devices go dead as well , ie lights on keyboard and mouse eye

 

[ShivP]

did all your usb devices go dead as well , ie lights on keyboard and mouse eye

Yeah they did

 

[Quartz]

What are temperatures like? Is your CPU cooler working?

 

[ShivP]

What are temperatures like? Is your CPU cooler working?

Temps seem all OK. Can't be gpu and cpu seems to idle around 60c, which seems OK for 5900x. Ironically as I hit quote on your post, it black screened and rebooted again.

 

[Game]

Yeah they did

Power is the root of the problem be that supply or motherboard ect

mine was doing it but only under full gpu load but solved that with cables

 

[ShivP]

System now no longer posts, turns on but no display, fans stay at max etc

 

[Game]

System now no longer posts, turns on but no display, fans stay at max etc

do you get bios?

 

[ShivP]

do you get bios?

Nope no bios

 

[ShivP]

OK just got into bios, had to wait a good 45 seconds after turning on. Going to leave it off and put replacement test psu in tonight

 

[Game]

I would be tempted to do a fresh windows install as well run from a usb

updates gone wrong can cause allsorts of things to happen thought my old system was bricked once but was windows

 

[ShivP]

I would be tempted to do a fresh windows install as well run from a usb

updates gone wrong can cause allsorts of things to happen thought my old system was bricked once but was windows

It is a fairly fresh install. I'm not sure how this would affect booting and/or BIOS either?

 

[Game]

It is a fairly fresh install. I'm not sure how this would affect booting and/or BIOS either?

It did for me its the magic of custom build random machines anything and everything is possible

 

[ShivP]

Put a new PSU in... all good so far

 

[ShivP]

and it's done it again. Nice.
Removed all PSU extensions to PSU / GPU / CPU - doubt it's that

Then I have some spare RAM to test
then... CPU and mobo

 

[Joxeon]

Any WHEA errors showing in event viewer, event 18 or 19 I think?.

 

[ShivP]

Any WHEA errors showing in event viewer, event 18 or 19 I think?.

Event ID 18 - BTHUSB - Windows cannot store Bluetooth authentication codes (link keys) on the local adapter. Bluetooth keyboards might not work in the system BIOS during start-up.