I have a some dead motherboards and graphic cards, i can maybe find some compatible mosfets.
Can i use this QM3056M in replacement for NTMFS4C10N ?
(QM3056M have lower Rds(on), same Vdss, Vgs and bigger Idmax)...
Bousty
New Member
Last Activity: 03-01-2025, 07:06 AM
Joined: 09-24-2018
Location: Paris
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Thanks ! I will do that.
I have a some dead motherboards and graphic cards, i can maybe find some compatible mosfets.
Can i use this QM3056M in replacement for NTMFS4C10N ?
(QM3056M have lower Rds(on), same Vdss, Vgs and bigger Idmax)... -
I found two mosfets short-circuited.
The others are OK.
However, when I measure directly on the motherboard, without the mosfets, between the gate and the source, I find 15k ohm (the value rises slowly)....Leave a comment:
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Thank you for your answer
Values are formatted like this : Mosfet number : [Source->Drain resistance] ; [Source->Gate resistance] ; [Gate->Drain resistance]
Phase 1:
1 : [0];[2.9];[2.9]
2 : [226];[209];[26]
3 : [225];[210];[27.5]
Phase 2:
1 : [0];[6.7k];[6.7k]
2 : [220];[OL];[OL]
3 : [220];[OL];[OL]
Phase 3:
1 : [0];[6.7k];[6.7k]
2 : [220];[OL];[OL]
3 : [220];[OL];[OL]
Phase 4:
1 : [0];[6.7k];[6.7k]
2 : [220];[OL];[OL]
3 : [220];[OL];[OL]...Leave a comment:
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VRM shorted, low side shorted ?
Hello,
my motherboard, a Gigabyte b660m-DS3H, broke last night, and I'm trying to fix it.
The symptoms are as follows:
- The PC doesn't boot when the CPU power supply is connected (without CPU).
- When voltage is applied to the CPU connection, the three phase 2 MOSFETs start to heat up. The other MOSFETs do not heat up.
The phases are made up of one high-side and two low-side MOSFETs.
My hypothesis is that if the two Low MOSFETs are hot, they must be permanently ON, even when the High is ON, causing a short-circuit.
Do you know how... -
Hey guys,
I'm Yanis, from France, and I am a developer and I am interested in electronics.
I've a strange occupation: buying broken things and repairing them for my personal use 😅.
I am glad to join you !...Leave a comment:
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