[SOLVED] Narrowed it down to GPU or PSU?

[Badx2]

Alright gang I've spent the better part of the morning running through these forums and troubleshooting. I think I have it narrowed down. Just want to confirm some thoughts with you all before I start buying or returning things.

I had prebuilt PC (I know) that I wanted upgrade. Fell into the trap of an upgraded CPU needs a new mobo, so get the GPU then too.

I have (had)
iBUYPOWER - Desktop - Intel Core i7 - 8GB Memory - NVIDIA GeForce GTX 970 - White (original) https://www.bestbuy.com/site/ibuypo...geforce-gtx-970-white/5005681.p?skuId=5005681

I put in

B550 plus -https://www.asus.com/us/Motherboards/TUF-GAMING-B550-PLUS/overview/
Ryzen 3700X - https://www.amd.com/en/products/cpu/amd-ryzen-7-3700x and
RX 5700 XT - https://www.amazon.com/XFX-Thicc-2025MHz-Graphics-Rx-57XT8TBD8/dp/B07ZP5QZX2

I was initially met with random reboots. Did a bunch of troubleshooting from these forums. Mostly settings, reseating things, driver updates, stopping auto restarts, stopping things from being able to make my PC restart to save power.

Today the restarts became more frequent in games, and then I tried using Kombuster and it restarted instantly. Made me think GPU.

So I put the GTX 970 back in and so far no reboots. I've run Kombustor stress tests on CPU and GPU and have had no issues. Tried non-graphic intense games as that is all i have downloaded so far.

So in my mind the older 600w PSU isn't giving enough juice to get the GPU rolling very long (likely?) or the GPU is bad (unlikely?)

I'm going to run the old GPU in a few intense games tonight and if it doesn't crash I think try to buy a new PSU and go from there?

Is my logic sound on this? I COULD have a cable or two not plugged in that were plugged in to the previous mobo, could that cause a short and cause this?

Thanks!

 

[Badx2]

Think either the two psu's can't handle the power draw of the new specs or the gpu might need an rma/swap. Needs swapping of parts to really know, and really good psu since the old gpu seems to work.

Alright heres a thought, can I use the second psu to just power the GPU? And then I can see if there is enough juice to stop restarting? Then if it still restarts its not a power issue?

Edit

Would I need to do anything besides plug the psu into the wall and the GPU?

 

[Badx2]

Fresh start failed. Well the install went fine but still got a restart in the first game I tried.

Guess I'll try to hook the GPU up to its on PSU and see if it looks to be a power issue.

Edit: Event viewer and reliability are all same nonsense about not getting shut down.

 

[Vic 40]

Not really recommending using two psu's, but if you want to try make sure to connect the green and a black wire on the 24pin connector of the psu that wil power the gpu alone, otherwise will it not start. Would have this powered first before starting the pc.
Only connect those wires with the psu not plugged into the wall. He does it in this vid about testing a psu when not attached to anything,

View: https://www.youtube.com/watch?v=ac7YMUcMjbw


Can only hope it will prove something, but am not sure.

 

[Badx2]

Not really recommending using two psu's, but if you want to try make sure to connect the green and a black wire on the 24pin connector of the psu that wil power the gpu alone, otherwise will it not start. Would have this powered first before starting the pc.
Only connect those wires with the psu not plugged into the wall. He does it in this vid about testing a psu when not attached to anything,

View: https://www.youtube.com/watch?v=ac7YMUcMjbw


Can only hope it will prove something, but am not sure.

Thanks! Yeah I definitely don't want to use two PSUs but I have them and before I take one back, pay the restocking fee, then find a decent one; it would be nice to try to narrow this down as a power issue.

 

[Vic 40]

Hope it will have some outcome that makes things clearer.

 

[madmatt30]

That thermaltake is honestly a godawful psu, it's a 520w unit at best really. Nearly 100w of that rated 600w is on the 3.3 and 5v rails (of which only about 30w is actually required)