Question Burned mosfets 1080ti

jay32267

Champion

muhammadahmad9794

Commendable
Jan 14, 2019
188
0
1,590
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Here is what they are.
https://www.onsemi.com/products/power-management/dc-dc-controllers-converters-regulators/integrated-driver-mosfet/fdmf6823c

I checked all of my major component suppliers.....Newark Electronics...Allied Electronics....Mouser...and Digikey....

Digikey doesn't normally stock them.
The other three do.
They are out of stock at all the other three.
Mouser is expecting some July 21st.
This might be due to the GPU shortage.
Thanks for help man.
 

InvalidError

Titan
Moderator
First, I'd remove the clearly destroyed parts and check for continuity from Vcore to ground using the diode voltage drop test. If all shorts have been removed, the diode drop voltage should be at least 0.4V, usually closer to 0.8V. If you get something like 0.1V or less, you have more shorts that need to get sorted out and the GPU may be toast.
 
Reactions: norcalsc

muhammadahmad9794

Commendable
Jan 14, 2019
188
0
1,590
4
First, I'd remove the clearly destroyed parts and check for continuity from Vcore to ground using the diode voltage drop test. If all shorts have been removed, the diode drop voltage should be at least 0.4V, usually closer to 0.8V. If you get something like 0.1V or less, you have more shorts that need to get sorted out and the GPU may be toast.
Seems like its useless to waste time on it
 

muhammadahmad9794

Commendable
Jan 14, 2019
188
0
1,590
4
I can't find them specifically but I think they are a 680uF capacitor with the positive polarity going to the "+" symbol on the board.
Here is an image of aorus xtreme 1080 and board is almost similar may be it can help you identifying the other component??

And complete details here on website in this article https://www.guru3d.com/articles-pages/gigabyte-geforce-gtx-1080-aorus-xtreme-review,5.html

View: https://imgur.com/a/e40MAhI
 

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