Recent content by Debidoobs

Hello, sorry for the none reply, haven't received any notifications. Well it turned out that my cg had a bad MMDT3904 junction so i replaced it... unfortunatly this does not fix the problem has no my gc does weird thing, i explained it on a new thread...

Hello, unfortunatly no other pcie 8x cable, i checked continuity and it's all correct. really strange behaviour. Im going to check the psu cause the card boot with 6x pcie and not with 8x pcie.. the fact that all the test led from the mobo process correctly without the vga led remaining lit...

Hi guys, Here is my setup : W11 B550m msi bazooka Ryzen 5 3600 Rx580 8gb sapphire pulse 16go ram 3200 500ssd 550w platinum 80 serie psu Im having weird behaviour from my rx580 8gb sapphire pulse. One day all of sudden pc shut down... And didnt want to boot anymore. I played with the 8 pcie...

Hello, My rx580 sapphire pulse 8gb stopped working. I put it on my bench and i have all the right voltages even Vcore 900mv and no bad fuses. But fans are not spinning when turned on. Strange thing is if i touch the gpu chip with my finger when powering it up, the card looks like it s booting...

3.3Kohm , since i replaed them there still intact. I made some progress, well i hope so. I look at schematics and i found that im missing a signal at one input of an AND GATE which is supposed to send a high state (0.3V?) to the PHASE controller in order to start the graphic card. But in my...

Resistance from 12V pcie rail and ground give me 4.8Kohm VCORE to ground give me 1100mOhm and 0,9V ok Memory controller : 32 Ohm 0.98V ok Memory : 24 Ohm 1.5V ok :(

Hi, unfortunatly, i do have 3.3Kohm to ground from the external 12V power rail :(... What i cannot explain is why the atx PSU will not even turn on when all cables are connected to the RX580. The ATX will only turn on if i connect the GPU to a PCIE RISER and feed the external 12V with an...

Hi Guys, I just replaced 2 blown fuses on the 12V rail of a RX580 sapphire 8go even though i didn't find any sign of shorts on the 5V, 3.3V or 12V with my multimeter. I don't know the history of the card.. i followed step by step the video from TECH Cemetery () but when on his RX580 sapphire...

Hi guys, im actually learning about diagnosing a faulty gpu and im making progress. Suspecting a GS7103 faulty on a RX580, no short on power stage. I only feed it with a psu lab from 8 pin connector but have no output on the gs7103. Do i need to power the 3.3v rail also ? Do i need to power...

Thank you a lot to take time to give me informations RazorWind, my bad obvisouly the SIC632 is not a "mosfet". So to answer you, yes if i send 1V from the blown fuse, only the upper Power stage IC is taking 300mV at the Vin when the three others are taking 1V at their Vin but nothing on the...

Resistance from 12v circuit (after blown fuses) and ground is 3,5KOhm.. Ground to each VRM Coil is 900mOhm. On the 3 bottom Mosfet, i can find the same voltage in the Vin and in the Phase output.. when i send voltage from my lab psu but no current drawn. What i can see also is Voltage coming...

Yes sorry for the cleaning, the GPU is fine, no cracks at all.

Hello guys, A friend gave me a GPU Radeon Sapphire Pulse RX580 8gb pretended to be dead. No power at all. I thought it could be a good idea with a bit of research to fix this board regarding to the amount of videos related to GPU repairs saying it's mostly dead mosfet in this case when 12V...