Question about IBM ThinkPad R30 2656 Notebook

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Laptop not used for some years. could enter bios OK to reset Replaced U/S CMOS battery with no problem. Restarted............ Message press F1 ibm bios setup press F11 to invoke IBM product recovery program press F12 for boot device list pressed F1..new message.......... ERROR warning IRQ not configured-PCI Bus 00 device 12 function 00 bus 00 device OA function 00 bus 00 device OC function 00 Press F1 for bios setup I press F1 and nothing happens press F11 nothing happens press F12 message= preparing boot device list then error message as above repeats tried F2 before boot=no joy.

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  • mike_abrey Dec 31, 2010

    Dear Creative Tech

    Reading my problem above you should see that I have just [ 2 hours ago ] replaced the CMOS battery with a new one. A simple job.
    What other suggestions do you have please ???????

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I received an IBM laptop with same issue a few months back. The error message due to the drained out CMOS RTC (coin-cell battery), which retains and other BIOS settings.
The system is OK and all you have to do is to get the CMOS/RTC battery replaced by the a professional.
Good Luck!
CreativeTECH

Posted on Dec 31, 2010

  • 3 more comments 
  • Creative Tech
    Creative Tech Dec 31, 2010

    Dear Mike, faulty RTC prevents from accessing the BIOS. i suggest that you may check the RTC is fine. Thats what happened to me and the second RTC worked just fine.
    Good Luck!

  • Computer Links Dec 31, 2010

    The above suggestion made by CreativeTECH is justified. Rest assure that the RTC CMOS is the only issue. Check if the voltage of battery is ok. Takecare

  • mike_abrey Dec 31, 2010

    Guys...
    voltage 2.9 volts - near enough to 3 volts ??

  • mike_abrey Dec 31, 2010

    just replace the CMOS battery with another new on @ 3 volts.

    Same problem.

    Any ideas ???

  • Creative Tech
    Creative Tech Jan 01, 2011

    Hi Mike,
    As we are here to help and assist each other, I assure you my best cooperation/efforts to the best of my knowledge and experience. I have spent hours digging out the issue. Checked the troubleshooting guide, Repair manual etc. (available at Official IBM Support) and Im still suspecting CMOS failure in some way as the behavior of the system is just the same as if without a CMOS (that can be verified by booting the system without COMS and without pressing any key from the keyboard, Im sure you would get the exactly the same message).
    All I can think of now is that CMOS may not be having proper connection with the motherboard. Checkout the minute solders below the CMOS plastic housing (these may require re-soldering). Also, make sure that the keyboard is properly fixed. Its ribbon cable etc. and the system should respond to the keyboard. I wish for luck.

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