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General discussion

Motherboard battery dead

Oct 27, 2004 6:41AM PDT

Will replacing the battery revive this old pentium II ?

Or is the BIOS lost ?

Discussion is locked

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It should come back up with the default
Oct 27, 2004 6:45AM PDT

settings. If incorrect you are out about $3 max. LOL

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Re: It should come back up with the default
Oct 27, 2004 8:07AM PDT

Put in new battery.

Now it says

Pentium II 333
65536 KB OK

Wait.......................................

Nothing more happens !

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Is it possible that when
Oct 27, 2004 8:19AM PDT

you put the battery in that you bent the top contact and it lost its tension? Find a way to bend the contact to make a firm contact. To test, simply hold it down with your finger to see if the systems boots.

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Re: Is it possible that when
Oct 27, 2004 8:45AM PDT

It is making good contact, I had a blank screen prior to installing the new battery. It is a 3 volt battery and the old one read .4 volts. Battery is properly installed.

Now I get a message "CMOS checksum bad"
Press F1 to run setup
Press F2 to load default values and continue_

Pressing F1 or F2 has no effect on the screen/system

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Why the difference in voltage???
Oct 27, 2004 8:47AM PDT

Any chance that you got the incorrect battery???

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Re: Why the difference in voltage???
Oct 27, 2004 8:51AM PDT

Why the difference? Because the old 3 volt battery was worn out.
It is the correct battery and it is installed properly.

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Never heard of the potential of a dead
Oct 27, 2004 9:05AM PDT

battery increasing. It would seem to defy the electro chemical properties that establish the potential.

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Re: Never heard of the potential of a dead
Oct 27, 2004 9:12AM PDT

One more time...the old battery was worn out it was a 3 volt battery that read .4 volts on a multimeter. The new battery is a 3 volt battery that reads 3 volts. Prior to replacing the battery the PC would not display anything on the monitor. Nor it appears that the BIOS is lost.

Forget the battery !

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Re: Never heard of the potential of a dead
Oct 27, 2004 3:53PM PDT

When you boot your computer up,Does it show what version of bios your system uses?It should be at the top left hand side,though it may differ from computer to computer.Do you know if it is a Phoenix or Award Bios?It is possible that if you get the correct Bios for that specific computer,that you can put a new Bios in it.But be warned,If you put the wrong Bios in it then your computer will never function again,and your MoBo will basically be dead.