Palit RTX 3080 - PC Not Booting - Fixing Short circuit.

Embark on a journey with our latest repair video featuring the Palit Gamingpro RTX 3080 on a computer that refuses to boot due to a short circuit. Through diagnosis, we unearthed a short on one of the 8-pin connectors.
However, the diagnostic process revealed more complexities as one of the MOSFETs exhibited a short circuit. Navigating the cramped space of the PCB, the repair took an unexpected turn, leading to the blowing of a few electrolytic capacitors. Undeterred, we carefully replaced these blown capacitors.
Yet, the troubleshooting journey encountered another hurdle during testing, another MOSFET succumbed, necessitating the replacement of both MOSFETs. Through skilled repair and rigorous testing, the Palit Gamingpro RTX 3080 was revived, now stable and performing like new.
Join us in this in-depth video as we unravel the intricacies of GPU repair, showcasing the challenges, solutions, and the ultimate triumph in resurrecting a dead graphics card. Subscribe, like, and share to stay abreast of the latest in GPU troubleshooting and restoration. Leave a comment to share your thoughts and experiences!
Timestamps:
0:00 - Introduction
1:18 - Resistance Measurements
2:13 - Microscope Observation
4:16 - Resistance Checks
5:15 - Voltage Injection
8:30 - Finding and Removing the First Faulty MOSFET
17:48 - Removing the Second Faulty MOSFET
19:52 - Voltage Measurements
21:17 - Testing on Test Bench
21:53 - Installing Two New MOSFETS
24:17 - Stress Test and Conclusion
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[@leonsugden4562]

Nice work I am enjoying your channel very much keep up the good work 😎😎😎😎

[@GraphicsCardRepairs-tk7ql]

Glad you enjoy it! 😊

[@DevilbyMoonlight]

good job... thanks for sharing

[@GraphicsCardRepairs-tk7ql]

Thank you😊

[@abbyson2834]

Just Ground a umpopulated Vcore Phase so the Short will Take More Ampere and you see which DRmos is Stuck Closed. No need to use more Voltage But with 0.8V And ~1A You will not see Anything but With a Current Limited Lab PSU You Can Inject 0.8V 10A And since you Grounded Vcore 10A Will go Though the Broken Drmos straight to Ground making it light up on the Thremal Cam.

[@GraphicsCardRepairs-tk7ql]

Wow. I like that. I will use that for shorts. 😁

[@rongray8934]

Great info. Curiosity, why does it not need those mosfets to run?

[@GraphicsCardRepairs-tk7ql]

Mosfets are like sparkplug in a engine they fire in a sequence and timing at the GPU core. Just like how the engine would run without one spark plug firing the GPU would start without the MOSFET but the firing will not be efficient and performance suboptermised but it's enough to test the graphics Card.

[@TheEli1963]

You can use the vcore coil as ground

[@GraphicsCardRepairs-tk7ql]

No it's not the Vcore coil but the brass standoffs used as ground

[@GraphicsCardRepairs-tk7ql]

Oh!! you mean to say. i can ground through the coil so that voltage does not bleed through the core. I get it now. Thank you. I will use this in the future.

[@JoeBordok]

how can i send mine to you ? it has the same problem 😢 my pc stopped booting and it works just fine with another gpu do you have an adress ? can i send it to you ? im in Tunisia ( north africa ) nobody can repair these in my country

[@GraphicsCardRepairs-tk7ql]

Yes you can book your repair by clicking the link in the video description. You will receive a case ID and further instructions.

[@Takashita_Sukakoki]

You are a bit overdoing it with the: applause, aww, trumpet sound effects (the music is fine), they dont really add anything. The sub,like, bell notification is a bit too long and intrusive (if its animated it will also draw the eye in a corner of the video)

[@GraphicsCardRepairs-tk7ql]

I appreciate your feedback. I will take care of it in the next one.