Abnormal GPU behavior

[lorddemitri]

Forgive me for the essay, but I'm at my wits end trying to figure out what is causing my system to crash.

I recently had my R9 270 suddenly die on me under warranty. I received a replacement R7 370 and it worked flawlessly for about 3 hours before it began to crash erratically. The card would sometimes work for hours, and other times it would crash to screen with vertical colored lines. This could happen not only in an OS environment, but also in my bios. I RMA'd the card again and received a RX 460. While waiting for the replacement, I acquired a RX 570 which seemed to work fine, but what I had noticed since the 270 died is that GPU monitoring software will show very strange fluctuations in gpu usage/memory controller load/clock frequencies while the system is idle. My system eventually froze while running the RX 570, but only displayed a black screen and the sound was stuck in a loop. I removed the card for fear I may damage it. The system has been completely stable while running the integrated graphics. I've tried replacing the power supply and the motherboard and the gpu still displays this behavior. I am currently running the RX 460 and have yet to crash, but you can see the behavior I described in the attached image.

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[hang-the-9]

You tried another power supply but you did not give any details about your old one or the new one, what brand and model were the PSUs? If you have several cards with the same issue that points to your other hardware, or maybe Windows or drivers. Since you replaced the motherboard, that is not likely the cause, but if you are using low quality power supplies, that may be the cause. Also see if you can get a spare hard drive, install Windows clean on that and see if that helps any.

 

[lorddemitri]

You tried another power supply but you did not give any details about your old one or the new one, what brand and model were the PSUs? If you have several cards with the same issue that points to your other hardware, or maybe Windows or drivers. Since you replaced the motherboard, that is not likely the cause, but if you are using low quality power supplies, that may be the cause. Also see if you can get a spare hard drive, install Windows clean on that and see if that helps any.

Let me fill you in I've been using a thermaltake toughpower gold 750w for about 2 years now
https://www.amazon.com/Thermaltake-TOUGHPOWER-Modular-Supply-PS-TPD-0750MPCGUS-1/dp/B00IUQRPQS

And I tried replacing it with a evga supernova 750 b2
https://www.amazon.com/EVGA-SuperNOVA-Modular-Warranty-110-B2-0750-VR/dp/B00KFAFRW6

I felt that it shouldn't be an issue with the power supply if the system crashed within the bios. Games run perfectly fine despite the strange graph readings. I motherboard I tested was the same exact make as the one I already have (Asus P8Z77-V). I'm gonna try a fresh install of windows and give an update after that.

Update: Fresh install of windows and it still displays the same behavior.