CPU crashing my system down after PSU replacement

[AndreV]

Hello guys,

First of all, let me state that my IT knowledge is limited so any help is appreciated.

A few years ago I built a custom pc with help from everyone here at the forum, as is usual every 4-5 years or so.

My PC consisted of:

Z97-AR
I7 4790K (with stock cooler, later replaced with a not much better Alpine 11 GT)
GTX970 Strix
TridentX CL9 2133 2x8
XFX Pro 650
CM Storm Scout II

I don't OC but It was really stable, ran everything I threw at it and had barely any issues until last week, when the PSU crapped out on me.

I replaced my PSU with a XTR 650W.
After plugging in, my system was crashing when I got to the windows (10 x64) logon screen, so I got into the BIOS, ran the EZ tuning wizard selecting Daily computing, and worked.

After a couple of days I tried playing a game (The Division to be more precise) and after a few minutes the system crashed. This happened always.

I noticed my CPU temps were between 40-60ºC idle and immediately got to 100ºC when stressed (Prima95 for a couple of seconds) so I figured it had to be the CPU. Everything else was normal. I put thermal paste less than a year so I figure it should still be good.

I tried resetting the bios to default, then tried installing ai suite 3 without success (apparently W10s latest update messed it up, can't install ai suite 3, fan xpert, etc), installed speedfan in auto to no avail. My cpu fan works between 1500-2000 in idle AND inside any game. Downloaded latest nvidia drivers and even formatted my computer. Still happens. My BIOS version is the latest.

I'm running out of ideas. I'm considering buying a Corsair H100i Gtx today, but would like some pointers from you before.

I'm at work so I can't send anything now, only in a couple of hours. The only thing I have is a small screenshot I took 2 days ago before formatting the PC.

https://ibb.co/jqeEuG

Any idea what it could be?
Might be worth mentioning I did not install the XTR myself, the store I bought the PC from did. Could there be something wrong with its installation?

Thanks for your time, cheers !

Andre

 

[Lutfij]

What was your previous PSU? Are you on the latest BIOS update for your motherboard? You've stated it but what revision are you on? Since you're on Windows 10, you can try and perform a repair install and see if the issue is averted.

 

[AndreV]

Are you on the latest BIOS update for your motherboard? You've stated it but what revision are you on? Since you're on Windows 10, you can try and perform a repair install and see if the issue is averted.

I'm on Bios version 2801. No other available from the manufacturer's webpage (Asus).
I did a repair install and even a clean format, as stated. Didn't work.
Previous PSU, as stated, was a XFX Pro 650W.

 

[jed.r.w]

Check you didn't knock your CPU cooler while you installed your PSU... it's push pin right? So entirely possible it's come loose. Re-seat and reapply thermal paste just to be sure. Also, do a visual check that the CPU fan is actually spinning.

 

[AndreV]

Check you didn't knock your CPU cooler while you installed your PSU... it's push pin right? So entirely possible it's come loose. Re-seat and reapply thermal paste just to be sure. Also, do a visual check that the CPU fan is actually spinning.

So after I got home from work, my cpu was doing 80C idle, even got a couple warnings when turning on the pc. checked fans and current cooler, cables, etc and everything was ok. Just in case i removed the thermal paste and will leave it off for one day, ordered a h100i v2 which will arrive tomorrow to replace my cooler, but im guessing when the original psu crapped out, it took something in the mb with it. Either that or the bios is messed up.

Will check back once I've installed the new cooler, but if anyone has any clue as to what could be going on, please help.