It's nothing to do with the battery jack.
You blew the motherboard by inserting a non-IBM charger and a non-IBM battery, it's as simple as that.
PM me if interested.
well, I didn't insert in a non-ibm batterybecause I never removed my ibm battery, just my thinkpad charger.
If your machine has an XGA (1024x768) screen (either 14.1" or 15") I may be able to help you out with a compatible motherboard with Intel graphics.
I looked at my screen and the bottom of my laptop, and so far, have been unable to determine if I have an xga screen . Is it expensive to replace a motherboard?