XP will only boot on battery power

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jp1203

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Jul 20, 2005
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Here's a strange one:

On my Thinkpad R31, if it is plugged into an outlet, XP hangs on the splash screen, it even hangs on all safe modes. If I unplug it and let it boot off the battery, it boots perfectly fine. Once it's booted, I can run it off the adapter without a problem. The adapter charges the battery fine, and the battery holds a charge for a little over three hours of light use (web browsing, word processing).

Any ideas as to why it does this? I've tested it several times and it always boots without a flaw off the battery, but never off the adapter. I don't even know what to begin with here its so strange.

Thanks,

Joe

BTW, it stops at mup.sys when booting in safe mode.
 
Joined
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Could be the power supply causing it have you tried another power supply?
 

jp1203

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Jul 20, 2005
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3,427
No, only because I don't have another. I checked with a friend a while back and his are all much higher voltage.
 
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Well the power supply especially on startup is critical....and I can't think of anything else it is an odd one.

If the power supply is a bit off on startup but is alright after its warmed up that would explain a bit....
 
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