I didn't realise you don't need to flash mining raven. That's handy to know.

Batsonxl. Usually you'd use a heat gun to reflow. Basically if there are any cracked solder joints, heating them to 300c will melt the solder and create a connection again. However, the reason I used a hair dryer is because they run about 140c and I wanted to check if the GPU itself responded to heating on a low heat as the silicon has a lower melting point than lead free solder. If it didn't do anything I could then try and heat gun over it and see if it fixes any solder issues. Sadly if it works again with lower heating temps over the GPU then 9/10 times it needs to be sold off for spares. That said if you always use the same cards then they are useful to salvage parts from.

So I purchased a used 470, flashed it the same way as my 480 and all was fine. I then undervolted and overclocked it in RaveOS with the same settings as the 480 but a little less on the power down to 850mV and again all was fine. I noticed a day later the rig was rebooting a lot and then I noticed a temp spike to 200c which must have been an error with a sensor. After this temp spike the fan stopped spinning after 30s so I first ran over the GPU with a hair dryer and the card worked again but only for a day or 2 and I then heated it again. As the hair dryer is half as hot as a heat gun I assume it's a silicon issue and not any cracked solder joints as I couldn't see any.

I'm sure I caused the issue as when I checked my OC settings I saw I had mistakenly entered the memory voltage as 1900 which was supposed to be for the memory clock so I'm sure I've caused a short in VRM and it's sent 12v straight to core.

On another note. Do you really need to flash a bios using RVN?

So on my new rig I've just built I've currently got a single RX 480 and the dashboard in SMOS displays two different wattages and I'm not sure which is which.

https://pasteboard.co/K6CzGwp.png