IBM Thinkpad WEIRD power problem

By meatologist
Oct 14, 2005
  1. Hey,

    I've got a IBM Thinkpad T22 that's having a weird-out

    The laptop works fine in general - apart from powering it on....

    Without the AC adapter plugged in - it just wont boot.

    I switch it on - it starts to boot and then *ZAP* it just shuts off - EVERY time... without fail.

    As soon as I plug the AC Adapter in - it boots first time.

    So, i thought "OK, the battery is f00ked" - but the battery holds a charge and once booted into XP, I can unplug the AC and use the laptop as normal...battery life is normal ?!

    It ONLY when booting.

    One thing I noticed - without AC plugged in - the initial IBM Thinkpad screen is empty apart from F1 for BIOS blah blah blah

    When AC is plugged in - I get another option in the bottom right hand corner F12 Temporary Boot Device

    This ONLY comes up when the AC is plugged in.

    Do you think it could be a dodgy CD drive? Maybe the CD drive is chewing up voltage when booting.. as when I plug AC in - i get the option to boot from a temporary device (CD etc)

    any help will be greatly appreciated.

  2. tdeg

    tdeg TS Rookie Posts: 119

    Take our the CD drive and try booting from battery.
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