please help me

April 29, 2009 at 18:43:15
Specs: Windows XP
I have a problem w/ my ibm thinkpad a2le everytime I open my laptop it always appear error 0270:real time clock error, error 0251:system CMOS cheksum bad-Default configuration used,error:0188.b:Bad CRC2 and error 0189: Invalid RFID Configuration information area....oh please help thanks...

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April 29, 2009 at 19:32:21
Your CMOS battery needs to be replaced.

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