Tbtorro diagnosed this in 2015, and suggested other experts for further diagnosis:
Your card has no soldering faults or modifications which is good. Voltage regulator, clock signals are OK. None of the logic chips overheat. I see no hardware fault.
Leds flash, screen shows green and reboot with short rainbow color flash. See video here:
https://photos.app.goo.gl/WJmHbKFu67rNyypG3
Images here:
https://photos.app.goo.gl/vZMzUFqhbO98kCBt2
Hope someone can give it a try!
Your card has no soldering faults or modifications which is good. Voltage regulator, clock signals are OK. None of the logic chips overheat. I see no hardware fault.
Leds flash, screen shows green and reboot with short rainbow color flash. See video here:
https://photos.app.goo.gl/WJmHbKFu67rNyypG3
Images here:
https://photos.app.goo.gl/vZMzUFqhbO98kCBt2
Hope someone can give it a try!