HELP Sapphire Rx 460 fan goes to max speed and back down for no reason at random times

[JustAnotherDood]

Greetings Everyone!

My RX 460 fans are having problems lately. For some reason, the fan on my GPU goes up to the max speed 3200+ RPM then goes back down to it's normal speed. This happens randomly for no reason whether the PC is just sitting on idle or browsing the internet. The GPU isn't even hot at all and it is only at around 30 degrees. Whenever the fan ramps up, it lasts from less than a second to up to a minute or two. On GPU-Z whenever the fan ramps up, the reading gets weird because the fan percentage is on 27% but the RPM is at 3200+. But when the speed goes back down and when the fan goes back to normal, the reading becomes correct like 27% with 1300+rpm. Same reading can be found in MSI Afterburner. 

It also won't follow the custom fan curve whenever it ramps up to the max speed

This also happens in BIOS and safe mode. 

Here are the things I did:

-Set a custom fan curve

-Uninstalled MSI Afterburner

-Reseating the Graphics card

-Using DDU to reinstall the drivers several times

-Updating the drivers to the latest version

-Cleaned the GPU and the PCIE slot (I didn't change the thermal paste though)

-Reconnected/reseated the GPU fan

-Reset the BIOS

-Updated the motherboard BIOS firmware to the latest version

-Replaced my PSU

But none of these fixed the issue.
 

My Specs:

Motherboard: Asus H81m-D

CPU: Intel Pentium G3250 (I know this sucks but I'm about to upgrade it soon)

GPU: Sapphire RX 460 2gb Single Fan

RAM: 8gb DDR3 1333mhz

PSU: Silverstone strider essential series 500w

 

Wishing that someone knows a solution that might help. Thanks in advance!