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Current version by: oldturkey03

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@fixer85785 those two are TPC8031-H(TE12LQM) MOSFET N-CH 30V 11A in a 8-SOP (5.5x6.0) package. Yes, those love to go on the fritz in this model and are most commonly because of secondary errors. Check for short to ground and check for the voltage on the Gate (~25V) of those MOSFETs. Here is a bit of information on [document|41353]
This particular series of MOSFET is considered obsolete and thus not available at the place where I get some of my components from (Digikey.com) but you can most certainly [link|https://www.digikey.at/en/products/detail/toshiba-semiconductor-and-storage/TPC8031-H-TE12LQM/1986243?srsltid=AfmBOoro0thflzCCOz4FTXVik40MxuewTGZN9YdJ9i1DUHgW2gbxtlkt|find similar] there as well.
You need a hot air station, plenty of flux, a steady hand and Eagle eyes (oh yes, plenty of practice too ;-)
To check some more parts on your boards, we would need a picture that shows a better close up. Remember, we really have to zoom in to identify what is going there. Less blue mat and more board will be perfect:-)
Nobody is ever going to tell you that "so please don't just tell me it'll be too hard and that I shouldn't bother trying" on here. It will always be up to you as how far you want to go. It will always be your call, not ours. We want you to be empowered and provide as much help and advice as we can give, but even that is sometimes not enough. Sometimes we just can't get things back to work.
***Repair is War on Entropy!***
=== Update (03/13/25) ===
-@fixer85785 remember it is possible that you have a component on the power rail that has shorted out. Most of those components get hot when you plug your motherboard in. That is where the Resin Vapor comes in handy. Or you can use some 90%+ isopropyl alcohol and wet the components with that. See if you find one that dries quicker then the others. That will be the one that is short. I'd start testing components in the areas of the larger coils. Those are usually power rail;s of some sort :-) Biggest issue is that there are no schematics What voltage do you get on the GATE of the IC's (Black to ground and Red probe to GATE pin for those IC's) when you plug your motherboard in?[image|3576358]
+@fixer85785 remember it is possible that you have a component on the power rail that has shorted out. Most of those components get hot when you plug your motherboard in. That is where the Resin Vapor comes in handy. Or you can use some 90%+ isopropyl alcohol and wet the components with that. See if you find one that dries quicker then the others. That will be the one that is short. I'd start testing components in the areas of the larger coils. Those are usually power rail's of some sort :-) Biggest issue is that there are no schematics :-( What voltage do you get on the GATE of the IC's (Black to ground and Red probe to GATE pin for those IC's) when you plug your motherboard in?
+
+[image|3576358]

Status:

open

Edit by: oldturkey03

Text:

@fixer85785 those two are TPC8031-H(TE12LQM) MOSFET N-CH 30V 11A in a 8-SOP (5.5x6.0) package. Yes, those love to go on the fritz in this model and are most commonly because of secondary errors. Check for short to ground and check for the voltage on the Gate (~25V) of those MOSFETs. Here is a bit of information on [document|41353]
-This particular series of MOSFET is considered obsolete and thus not available at the place where I get some of my components from (Digikey.com) but you can most certainly [https://www.digikey.at/en/products/detail/toshiba-semiconductor-and-storage/TPC8031-H-TE12LQM/1986243?srsltid=AfmBOoro0thflzCCOz4FTXVik40MxuewTGZN9YdJ9i1DUHgW2gbxtlkt|find similar] there as well.
+This particular series of MOSFET is considered obsolete and thus not available at the place where I get some of my components from (Digikey.com) but you can most certainly [link|https://www.digikey.at/en/products/detail/toshiba-semiconductor-and-storage/TPC8031-H-TE12LQM/1986243?srsltid=AfmBOoro0thflzCCOz4FTXVik40MxuewTGZN9YdJ9i1DUHgW2gbxtlkt|find similar] there as well.
You need a hot air station, plenty of flux, a steady hand and Eagle eyes (oh yes, plenty of practice too ;-)
To check some more parts on your boards, we would need a picture that shows a better close up. Remember, we really have to zoom in to identify what is going there. Less blue mat and more board will be perfect:-)
Nobody is ever going to tell you that "so please don't just tell me it'll be too hard and that I shouldn't bother trying" on here. It will always be up to you as how far you want to go. It will always be your call, not ours. We want you to be empowered and provide as much help and advice as we can give, but even that is sometimes not enough. Sometimes we just can't get things back to work.
***Repair is War on Entropy!***
=== Update (03/13/25) ===
-
-@fixer85785 remember it is possible that you have a component on the power rail that has shorted out. Most of those components get hot when you plug your motherboard in. That is where the Resin Vapor comes in handy. Or you can use some 90%+ isopropyl alcohol and wet the components with that. See if you find one that dries quicker then the others. That will be the one that is short. I'd start testing components in the areas of the larger coils. Those are usually power rail;s of some sort :-) Biggest issue is that there are no schematics What voltage do you get on the GATE of the IC's (Black to ground and Red probe to GATE pin for those IC's) when you plug your motherboard in?
+@fixer85785 remember it is possible that you have a component on the power rail that has shorted out. Most of those components get hot when you plug your motherboard in. That is where the Resin Vapor comes in handy. Or you can use some 90%+ isopropyl alcohol and wet the components with that. See if you find one that dries quicker then the others. That will be the one that is short. I'd start testing components in the areas of the larger coils. Those are usually power rail;s of some sort :-) Biggest issue is that there are no schematics What voltage do you get on the GATE of the IC's (Black to ground and Red probe to GATE pin for those IC's) when you plug your motherboard in?[image|3576358]

Status:

open

Edit by: oldturkey03

Text:

@fixer85785 those two are TPC8031-H(TE12LQM) MOSFET N-CH 30V 11A in a 8-SOP (5.5x6.0) package. Yes, those love to go on the fritz in this model and are most commonly because of secondary errors. Check for short to ground and check for the voltage on the Gate (~25V) of those MOSFETs. Here is a bit of information on [document|41353]
This particular series of MOSFET is considered obsolete and thus not available at the place where I get some of my components from (Digikey.com) but you can most certainly [https://www.digikey.at/en/products/detail/toshiba-semiconductor-and-storage/TPC8031-H-TE12LQM/1986243?srsltid=AfmBOoro0thflzCCOz4FTXVik40MxuewTGZN9YdJ9i1DUHgW2gbxtlkt|find similar] there as well.
You need a hot air station, plenty of flux, a steady hand and Eagle eyes (oh yes, plenty of practice too ;-)
To check some more parts on your boards, we would need a picture that shows a better close up. Remember, we really have to zoom in to identify what is going there. Less blue mat and more board will be perfect:-)
Nobody is ever going to tell you that "so please don't just tell me it'll be too hard and that I shouldn't bother trying" on here. It will always be up to you as how far you want to go. It will always be your call, not ours. We want you to be empowered and provide as much help and advice as we can give, but even that is sometimes not enough. Sometimes we just can't get things back to work.
***Repair is War on Entropy!***
+
+=== Update (03/13/25) ===
+
+@fixer85785 remember it is possible that you have a component on the power rail that has shorted out. Most of those components get hot when you plug your motherboard in. That is where the Resin Vapor comes in handy. Or you can use some 90%+ isopropyl alcohol and wet the components with that. See if you find one that dries quicker then the others. That will be the one that is short. I'd start testing components in the areas of the larger coils. Those are usually power rail;s of some sort :-) Biggest issue is that there are no schematics What voltage do you get on the GATE of the IC's (Black to ground and Red probe to GATE pin for those IC's) when you plug your motherboard in?

Status:

open

Original post by: oldturkey03

Text:

@fixer85785 those two are TPC8031-H(TE12LQM) MOSFET N-CH 30V 11A in a 8-SOP (5.5x6.0) package. Yes, those love to go on the fritz in this model and are most commonly because of secondary errors. Check for short to ground and check for the voltage on the Gate (~25V) of those MOSFETs. Here is a bit of information on [document|41353]

This particular series of MOSFET is considered obsolete and thus not available at the place where I get some of my components from (Digikey.com) but you can most certainly [https://www.digikey.at/en/products/detail/toshiba-semiconductor-and-storage/TPC8031-H-TE12LQM/1986243?srsltid=AfmBOoro0thflzCCOz4FTXVik40MxuewTGZN9YdJ9i1DUHgW2gbxtlkt|find similar] there as well.

You need a hot air station, plenty of flux, a steady hand and Eagle eyes (oh yes, plenty of practice too ;-)

To check some more parts on your boards, we would need a picture that shows a better close up. Remember, we really have to zoom in to identify what is going there. Less blue mat and more board will be perfect:-)

Nobody is ever going to tell you that "so please don't just tell me it'll be too hard and that I shouldn't bother trying" on here. It will always be up to you as how far you want to go. It will always be your call, not ours.  We want you to be empowered and provide as much help and advice as we can give, but even that is sometimes not enough. Sometimes we just can't get things back to work.

***Repair is War on Entropy!***

Status:

open