I received this video card, without vents, only board and metal heating sink. I was told that it was used for minning btc.... When plugged in to the computer no signs of life, motherboard/windoes doesnt recognise it...no lights, just a heating gpu (not too hot)....
First i try to reprogram bios from some dump i found on the internet but no luck. This card has two bios chip, and you can swich it, so i reprogrammed both.
Later i did i multimeter testing and i found that one of the bios chip pm25ld010 is dead, shorting pin gnd to pin vcc. When i remove it no continuity between vcc and ground. tested the chip removed from the board, it is showing short pin 4 to pin 8. Other chip is ok. But i do have continuity between vcc and hold on the board now, while chips removed, pins 8 and 7. I dont know is this normal because i dont have a boardview for this card...or there is short somewhere else? Does anyone have boardview? or the same card so he can test it with multimeter?
thank you!
First i try to reprogram bios from some dump i found on the internet but no luck. This card has two bios chip, and you can swich it, so i reprogrammed both.
Later i did i multimeter testing and i found that one of the bios chip pm25ld010 is dead, shorting pin gnd to pin vcc. When i remove it no continuity between vcc and ground. tested the chip removed from the board, it is showing short pin 4 to pin 8. Other chip is ok. But i do have continuity between vcc and hold on the board now, while chips removed, pins 8 and 7. I dont know is this normal because i dont have a boardview for this card...or there is short somewhere else? Does anyone have boardview? or the same card so he can test it with multimeter?
thank you!