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Old 04-05-2018, 04:54 AM   #10
I see dead caps
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Default Re: Shuttle SD36G5M - Mobo died, recapped, still issues

I think you understand it quite well actually. Your info is good anyway. OK. So Q53 will be the high side MOSFET, and Q54 the low side.

At the very least, It seems Q53 likely is bad. The low side MOSFET is harder to check in-circuit because the CPU or chipset presents a low resistance to ground in parallel, but a dead short will of course be obvious. The 24.9 ohms you get there would likely be normal, but the readings show what looks like a short to the gate also, so Q54 is probably bad too.

I would remove both MOSFETs at this point and re-test them out-of-circuit, to see if any readings change.
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