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Oct 16th, 2007
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CMOS Battery replacement on Laptop

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Is the CMOS battery on a Toshiba Tecra S1 readily accessible from the bottom of the machine ? I've taken apart many desktops but taking apart a laptop is new to me. I'm guessing it's about the size of a quarter but don't know if I have to completely remove the back cover of the laptop to get at it. My machine won't boot up and someone suggested to remove the CMOS battery and let it go back to factory default. (Machine has no display whatsoever on the built in LCD screen or when hooked up to an external screen or any hard drive / bootup sounds)
Last edited by jamoosee; Oct 16th, 2007 at 9:30 pm.
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Oct 17th, 2007
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Re: CMOS Battery replacement on Laptop

I would say the best thing to do is to go to the manufacturers website or call the company to find out information about where the battery is and what it looks like. I do not know a lot about laptops either, but more than likely the battery is very close to the BIOS chip.
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Oct 17th, 2007
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Re: CMOS Battery replacement on Laptop

its usually under the battery area of most laptops .,as it turns out i was almost right i think its between the hdd and the battery under the case ,a Google found this info ,in the center of this picture in the frame of the laptop you see a green item ,that the battery, wrapped in green plastic ,it pluggs into the board via a wired plug ,unlike a regular pc.

http://www.irisvista.com/tech/laptop...ecra_S1_23.JPG

take it apart
http://www.irisvista.com/tech/laptop.../tecraS1_1.htm
Last edited by caperjack; Oct 17th, 2007 at 4:19 pm.
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Oct 20th, 2007
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Re: CMOS Battery replacement on Laptop

hi, if you just want to reset the cmos even without removing the cmos batt, remove your memory stick, then power on your machin, then take out the batt or either the ac supply, then put back your memory stick when your power on your machine the cmos should be reset...
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Oct 20th, 2007
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Re: CMOS Battery replacement on Laptop

Thanks, found it. Had to remove the plastic trim on the keyboard side of the laptop near the finger pad.
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Dec 6th, 2007
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Re: CMOS Battery replacement on Laptop

I have the same power problem - but am way behind y'all. I don't know what a memory stick IS - much less where it's located! My laptop switches from AC source to battery - at will - w/ no warning. Don't know what/where CMOS is either. Can you help a sista???
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Dec 11th, 2007
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Re: CMOS Battery replacement on Laptop

when you say it switches from battery to ac it tells you this how? light on case?didthis lappy run ok recently?
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Re: CMOS Battery replacement on Laptop

Click to Expand / Collapse  Quote originally posted by karenkeyjohnson ...
I have the same power problem - but am way behind y'all. I don't know what a memory stick IS - much less where it's located! My laptop switches from AC source to battery - at will - w/ no warning. Don't know what/where CMOS is either. Can you help a sista???
could be bad/loose connection between the power cord and the plugin on the laptop,What kind of laptop is it .
it should have nothing to do with ram or the cmos battery .
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Sep 17th, 2011
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Re: CMOS Battery replacement on Laptop
Can't find the CMOS battery on a Toshiba L305D laptop. Tried suggestion above==no dice. little help? I have the Toshiba but owner forgot password. Bios also password-protected. Anybody know another way of resetting CMOS to factory default?
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