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Pc only starts while removing CMOS battery

Last response: in Components
April 14, 2012 8:42:36 AM

Whenever I try to start the pc, it doesn't start
so i replaced the CMOS battery ...
after replacing cmos battery it starts first time without problem but when i shutt down the pc problem arise again and it didn't start so i removed the battery and then it started automatically .
please help me .. tell me what is the problem ??
April 14, 2012 11:07:40 AM


just buy a new battery and see if it does the trick. Many motherboards won't boot once the voltage of the RTC battery has gone below a certain voltage (normally somewhere between 2.8 and 2.9V) but *do* actually start without any battery...
a b ) Power supply
April 14, 2012 12:04:22 PM


do you mean Windows does not get to desktop and crashes or freezes ?
PC never gets as far as booting from hard disk

If you get to desktop is clock date time correct ?
(if not reset to correct date time)
corrupt cmos clock settings [nonsense date/time] can stop Windows loading

Have you cleared cmos [jumper]
or re-loaded bios defaults (in bios)
after changing battery
[clear cmos jumper left on clear pins will cause problems]


Mike Barnes
April 22, 2012 1:50:06 PM

Thanks ... i replaced the battery and my problem solved !!