Hi everyone!
I'm a new guy here and a noob in GPU repairs, yet I decided to attempt my first one
I had this ASUS Radeon RX570 lying around for some time, my friend gave it to me and said it shows no display. It suddenly stopped working after half a year of using it, note that he had bought the card in used condition as well. Fans spin for a certain amount of time (10-20sec) at startup, but that's it.
Now about my progress: I tried looking at the card with a thermal vision camera and discovered two IC's heating a little bit (first 4 images), don't know if that could be the cause. The uP1540P seems to be a memory VRM?? (couldn't even find a datasheet) and I don't even know what the 7163 IC is. Then I looked for shorts around that area, found a few suspicious resistors, but they were 0402 with no marking and I supposed maybe they are 0 ohm ones, anyway, not sure of that too. I moved on to voltage measurements of rails and the results were really suspicious, because there was 12V on 4 different rails, I expected 5V, 3.3V, etc.. Well, the choke, which was heating near uP1540P had a 1.5V drop and the display rail was 900mV, these seem to be fine I guess. GPU Vcores showed absolute nonsense, measured 10-20mV on every each and they made me concerned. Afterwards, I did some resistance measurements on the chokes and rails, all of them were below 1ohm, which was strange too (Vcores were 0.6ohm, but that's normal as I suppose). After all this, I have no idea who to blame, as if everything seems off...
If I understood something wrong, please correct me, any kind of help will be really appreciated
I'm a new guy here and a noob in GPU repairs, yet I decided to attempt my first one
I had this ASUS Radeon RX570 lying around for some time, my friend gave it to me and said it shows no display. It suddenly stopped working after half a year of using it, note that he had bought the card in used condition as well. Fans spin for a certain amount of time (10-20sec) at startup, but that's it.Now about my progress: I tried looking at the card with a thermal vision camera and discovered two IC's heating a little bit (first 4 images), don't know if that could be the cause. The uP1540P seems to be a memory VRM?? (couldn't even find a datasheet) and I don't even know what the 7163 IC is. Then I looked for shorts around that area, found a few suspicious resistors, but they were 0402 with no marking and I supposed maybe they are 0 ohm ones, anyway, not sure of that too. I moved on to voltage measurements of rails and the results were really suspicious, because there was 12V on 4 different rails, I expected 5V, 3.3V, etc.. Well, the choke, which was heating near uP1540P had a 1.5V drop and the display rail was 900mV, these seem to be fine I guess. GPU Vcores showed absolute nonsense, measured 10-20mV on every each and they made me concerned. Afterwards, I did some resistance measurements on the chokes and rails, all of them were below 1ohm, which was strange too (Vcores were 0.6ohm, but that's normal as I suppose). After all this, I have no idea who to blame, as if everything seems off...
If I understood something wrong, please correct me, any kind of help will be really appreciated
Attached Files
Comment