Any help appreciated

[joshman219]

So I am having a problem with my PC and I am having a hard time pinpointing the problem. Basically my computer has been running sluggish lately , kinda laggy but some days it is completely fine no fps drops or anything. But here lately I will be doing anything sitting idle or playing game, or surfing and my 2 screens will lose video and one screen turns white while the other does a random collor most of the time black red or yellow. No words are displayed, then after a manual shutdown the PC sometimes acts like it's starting up then turns off and does so a few times the comes on with no video. It takes many reboots to get video back. I have check temps , case for dust, wires, basically all parts physically are appeasing and clean, reset hard drive , redownloaded windows and still have the problem. My PC parts are

Gigabyte z370 hd3
Gskill 8gb ddr4 2400
Msi Gtx 950
Intel i3-8100 blue lake
These are all less than a year old, my hard drive is just a default 7 year old hard drive , and my psu is also 6 years old a thermalcare 650w . Any help is greatly appreciated thanks

Thought I should this doesn't happen on start up it takes some time and is always random. Sometimes minutes hours or days, sometimes it acts like the problem is gone but happens after a while.

 

[Colif]

PSU don't last forever, 6 years is reaching its retirement date. Not saying its cause, just saying.
Same goes for the hdd really. I would run hdtune on the hdd and see how healthy it is, especially if its the boot drive

what version of windows is it?

 

[joshman219]

It is windows 10

 

[Colif]

See if turning fast startup off changes any of the startup behaviour: https://www.tenforums.com/tutorials/4189-turn-off-fast-startup-windows-10-a.html

try Hdtune free: http://www.hdtune.com/

are either monitor attached via Display Port as this might help: https://www.nvidia.com/object/nv-uefi-update-x64.html

it doesn't sound like its PSU as it would just turn monitors off instead of show weird colors

I have to go out today but will look at this when I get home later

Use search on desktop and look for reliability history, does it show any red dots around times of crashes? You can click the X's and in bottom panel, where it shows what happened, along side any errors click show technical details. Take a screenshot, upload to a image sharing web site and show link here.

If you getting no errors, it could be hardware and windows doesn't know what is going on. If the only errors are unexpected shutdowns, its likely windows doesn't know what is happening and its not to blame.