Unusual Thinkpad 600e boot issue

February 20, 2011 at 22:26:24
Specs: win2k, PII 400Mhz
I have an IBM 600E (type 2645, PII 400MHz) which will only boot if it detects a battery of sufficient charge installed, regardless of wheather the machine is connected to an A/C power source. This happened after i accidentally reverced the polarity of home maid charger so i could use the one i already had with my R30. I know there has to be a way to instruct the machine to boot regardless of power source, i just don't know how to reprogram it in the BIOS at hex level. Also, i'd like to disable it's "feature" where upon deciding it's on battery power, the machine automatically employs a very restrictive power scheme where it shuts down the video and hard drive after 5 minutes of no user input. The machine does this regaurdless of wheather it's on batter power or A/c, beacuse it will only start with a battery installed, even thoug honce powered up, you can remove the battery and the machine will keep running with the A/c power, and just continue to behave as if it's on battery. And yes, i now only use the original charger with this machine.

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February 21, 2011 at 12:51:08
I doubt it is or ever was a feature..

I suspect that it still has some power issue. Either the ac adapter or some issue with the power inside the laptop. Once you screw that stuff up by reversing polarity it can't be determined what has failed.

"The era of big government is over," said Clinton 1996

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February 22, 2011 at 20:37:29
Yeah, i'm thinking a mainboard replacement will likely be beeded to get the machine back up to par.

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