So I just ordered a new Rx480 Sapphire Nitro+ OC 8Gb DDR5.

It worked absolutely fine on 23.8 Mh/s Claymore windows for few Hours.

Then I flashed Custom Vbios by Heliox and it gave me rate of 28.8 Mh/s on ethos.

It ran for around 7-8 hours perfectly it crashed  and then crashed thrice in span of thirty minutes.

Then the card gave error to even boot the OS. I have tried. ethos, windows 7, windows 10, Ubuntu 16.04.02 .

This has happened to some of my cards before too. I don't understand why?

Here's the error Ubuntu and ethos gives -
https://imgur.com/a/mM3Qp
https://imgur.com/a/mM3Qp

And windows 10 gives -


 Thread Stuck In Device Driver error

And Windows 7 gives - Blue screen of Death


Any kind of Suggestions. Inputs are appreciated.

Thanks Guys

P.S. other Specs of Rig -
 Mobo -H81 Pro BTC R2.0
Ram 4gb Hynix
CPU - Intel 1150 Celeron 1840T(CO).

1. I was able to flash original BIOS with driverless Windows. But as soon as I install driver again the same error with original BIOS too.
2. Tried the BIOS switch too.