i've a problem with my clevo m720t.The cmos give me this error : 0271 check date time and settings, 0251 system cmos checksum bad- default configuration used.I've changed the cmos battery with newone but when i fix the configuration and switch off the pc everytime losts the configuration.Bios version 1.02.22 kbc/ec firmware revision 1.00.09.The battery is ok and the pc battery works well.I have xp professional and if i try to change date or hours in xp i can't.Only change in bios...
Clevo M720T bios proble
Clevo M720T bios proble
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