Murugan wrote on 2021-01-19, 15:10:
Lol my cheap multimeter broke and haven't replaced it yet.
I'll try to find the machine with the other SB16 in.
I wonder if the battery leakage might caused some damage...
You should have mentioned battery damage earlier. Battery leakages tend to corrode power delivery lanes from the AT power connector to the PCI/ISA bus very often. Your board may be getting 12V but your ISA slots may not. You can confirm this by checking continuity between the motherboard AT connector's 12V pin against the ISA slot's 12V pin. If there is no contact, there you have your answer. Fortunately, this can be fixed with a simple bodge wire under the board once you locate where the damage is, if you don't mind a bit of soldering.
Posting detailed photos of the top and bottom sides your motherboard could help, now I know where to look for the damage, maybe I can visually spot it.
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