My partner's GPU has started acting up and haven't been able to find a solution short of replacing it. Specs: MSI B360 Gaming Pro Carbon 2x 8GB G.Skill Trident Z (3000MHz) Intel i7-8700T Coolermaster ML240R Gigabyte Aorus RX580 8GB EVGA G3 650W 80+ Gold I bought the RX580 about 4 months ago and it was almost a year old at that point according to the seller. The seller told me that it had been mined on but that it had been reflashed to default settings. When I install the drivers, it runs as expected for a few boot cycles until it locks the core and memory clocks to 300MHz (the speeds it runs at when idle). I can't use MSI Afterburner to overclock to break out of these locked clock speeds, the only way I've found to fix it is to reinstall the drivers again and then it works for a few more boot cycles. I've updated the RX580 drivers to the most recent ones today after it happened again, and have previously tried using an older version to see if that solves the problem but haven't had any luck. Any idea how to stop this from happening? Any suggestions are appreciated!