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#1 |
Member
Join Date: Dec 2015
City & State: Santiago
My Country: Dominican Republic
Line Voltage: 110v
I'm a: Knowledge Seeker
Posts: 56
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![]() Hi Folks:
I have this board and attached a GPU that created a short in 12v pciex port lines (the slot). Something smoked with white smoke but nothing looks burned. Around the VRM was some smell. No idea if from GPU or motherboard. Nothing looks burned from GPU or motherboard. I do however have many points where there should be 12v and there is 374 ohm to 12v atx line. I post image with blue circles where there are 0 ohms. I was thinking to bridge with wire as pictured by green line since I find no other component that could be damaged and assume maybe a cooper line got damaged. Any ideas?? This is the link for board view file https://easyupload.io/kz024c Everything disconnected from +12v is connected between them. I tested with continuity. But reads 374 ohm to +12v atx input port. Last edited by waldoalvarez00; 06-26-2021 at 08:54 AM.. |
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#2 |
Member
Join Date: Dec 2015
City & State: Santiago
My Country: Dominican Republic
Line Voltage: 110v
I'm a: Knowledge Seeker
Posts: 56
|
![]() Another thing, I pulled some mosfets from VRM (3 of them) and they are totally ok as measured by transistor tester. So I soldered them back into the board and tested they where well connected with the meter. And another detail is that q958 and q951 that work together read 0 ohm from gate to drain. But they read good when pulled. They are controlled by this chip I add datasheet on the link https://easyupload.io/ud0xio
Last edited by waldoalvarez00; 06-26-2021 at 09:03 AM.. |
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#3 |
Sun Seeker
Join Date: Mar 2017
City & State: Sunny Gran Canaria
My Country: Spain
Line Voltage: 220V 50Hz
I'm a: Professional Tech
Posts: 1,375
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![]() Connecting a wire from 12V ATX to anywhere else that should be connected to that rail according to the boardview, would not cause any harm
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#4 |
Member
Join Date: Dec 2015
City & State: Santiago
My Country: Dominican Republic
Line Voltage: 110v
I'm a: Knowledge Seeker
Posts: 56
|
![]() Just powered it to try to measure some 12v points and noticed the superio (NCT6776D) is shorted and getting the 3.3v regulator from 5v standby to become super hot as well. I think I need to order a new one cause that for sure is an issue. Thanks! If after replacing it I see no 12vin those points I am going to put the jump wire to that inductor and see what happens. I hope the superio doesn't fries again.
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#5 |
Senior Member
Join Date: Mar 2021
City & State: bangkok
My Country: thailand
Line Voltage: 240v
I'm a: Hardcore Geek
Posts: 132
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![]() Super IO always does this, i have 2 boards needs superIO replacing on gen3 gen4 intel boards
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