Here is shown full diagnostic on graphic card. For RX 480's that's one of the common issues. Make sure those caps putting back, cause they help closing transistors and what I realized if you don't put them back transistor starts just boiling up and it leads to nothing good. Thanx
All Graphics card broken (short) diagnostic + repair graphic card
R9 390X reference card broken (short) diagnostic + repair graphic card
https://youtu.be/0r5X1_4Dybs
GTX 980 dead graphic card diagnostic + repair nvidea geforce video card
https://youtu.be/xhQDyUwGBNU
GTX TITAN X broken, no video out diagnostic + repair + a bit talk about bios graphic card repair
https://youtu.be/VmlLOVQQuaY
Z97 G45 desktop gaming motherboard diagnostic + repair process (English)
https://youtu.be/GBaO2SYiz2M
GTX 1060 no video repair process + motherboard repair easy fix graphic card repair
https://youtu.be/F-Xu-TwZ2rc
GTX 970 repairing phase or what could happen if you don't put radiator back video card repair
