Question PC crashes when gaming

[sigge.r.svensson]

So I built my first PC a week ago. Everything was smooth sailing until 2 days after first boot up. My PC crashed during A WoW session. It would then not boot up again. I started doing some troubleshooting, and I read somewhere on a reddit-post that someone had experienced the same, and their problem was their 24-pin connecter. So I opened my PC and wiggled around on the cable - I hit the power button, and it turned on. I thought everything was fine.

Then a few days later it happened again and I did the same thing, and it could turn on again.

Yesterday night, my PC crashed again - did the same thing and it turned on, but this time it would only be turned on for around 10-60min before crashing - crashed 3x in total yesterday. Now today, it has happened twice, and now I'm feeling lost. I've made sure the 24-pin connecter is fully intact, clipped on and everything.

Something I did notice, it has happened every time during gaming, and during 100% GPU load.

The total board wattage is around 320w when it crashes and my PSU is 750.

What do you guys think is the root of the problem. The PSU, the GPU, the mobo etc.

I do have an old 1050 Ti lying around I could do some testing with, but I want to hear your guys opinion first. I'm scared that I'm damaging my components with all of these reoccurring crashes..

Thank you.

EDIT: I would note that all temps are really good, so it's not an overheating issue. My CPU is around 50-60 while gaming, while my GPU is at 60-65 with hotspot of 80-82.

Something else I would like to add, is that I only have space for one 8-pin on my motherboard - so I'm only using 1 8-pin, instead of 2. I've read that it's no problem, but I was wondering if also could have an impact.


My PC Specs are:

Ryzen 7 7800x3d

7900 xt Phantom Gaming OC ASrock

32GB 5600MHz T-Force DELTA ram

ASrock B650E PG RIPTIDE WIFI

Transcend 250S 2 TB

MSI MPG A750GF 750 W

 

[Rakibulhassanrabby]

I think your GPU is sending an excessive amount of power to the mobo. Ryzen 7 7800x3d is a 120W CPU. I don't know why your mobo getting 330W. Could you check if your PC case gives you shock from touching it?
another thing do a close inspection of your 24-pin connector and see if any Pin from the cable itself is lose from the cable. an example would be if you put pressure in detaching a molex cable. sometimes pin comes loose from it

 

[sigge.r.svensson]

I

I think your GPU is sending an excessive amount of power to the mobo. Ryzen 7 7800x3d is a 120W CPU. I don't know why your mobo getting 330W. Could you check if your PC case gives you shock from touching it?
another thing do a close inspection of your 24-pin connector and see if any Pin from the cable itself is lose from the cable. an example would be if you put pressure in detaching a molex cable. sometimes pin comes loose from it

I was looking at AMD's software. It said total board power under the GPU stats was at 330, and I thought that it meant the system was drawing that much wattage as a whole - or is it only referring to the GPU?

 

[Rakibulhassanrabby]

AMD's software does show the mobo's power draw/board power. 330W is the power that your GPU mainboard will be able to handle. if psu sends more power to it then either the board will refuse or the board will fry itself.

 

[rolli59]

It can be many things, first make sure all power connections, ram and gpu is properly seated.
Then I would try the 1050Ti if all fine or even it fails then you have narrowed it down.