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New CMOS battery but...


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#1 bob-E

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Posted 17 July 2018 - 11:37 AM

I have an older computer (Asus P5Q Pro Turbo) I use maybe once a week or less. One day it stopped holding BIOS settings. (I turn off power strip when not in use.) Had been booting up fine until one day I had to go into the BIOS to reset. I noticed the CMOS LED did not stay lit after I turned power strip off, so I got a new battery and tested it before install, to make sure it was good. It did not light the LED. The LED does work when powered on. I checked visible connections on the battery socket and everything looks good. Right battery, CR2032. Voltage 3.09 volts. The old battery was weak; just over 1 volt if I remember right. No new hardware/software. A minor inconvenience to reset BIOS every time, and I could always leave power strip on, computer works fine once BIOS reset. But just curious as to what's going on and if I'm missing something obvious. 

 

 

 

 

 

 



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#2 the_patriot11

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Posted 17 July 2018 - 05:46 PM

just a silly question, but did you double check you got the polarity correct on the battery?


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#3 bob-E

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Posted 17 July 2018 - 05:54 PM

Yup 👍🏻

#4 mjd420nova

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Posted 17 July 2018 - 10:33 PM

Does the unit have a reset jumper?  And is it an exit and save after BIOS changes??



#5 bob-E

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Posted 18 July 2018 - 09:51 AM

Well I missed the something obvious...operator error!

 

1st. LED is merely a power light. Juice to computer, light on; no juice, no light. Not sure why I thought it had to do with battery, other than it's right next to it. But I should have known because it always goes off on my other computer when I turn it's power strip off.

 

2nd. I never turned the computer on when I put the new battery in (a week ago), until yesterday soooo, that means the BIOS had to be reset for the new battery.

 

Computer powered on fine this am.

 

Thanks for the replies



#6 dc3

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Posted 18 July 2018 - 10:36 AM

Ah... the ubiquitous user error.  I was seeing so much of this at one point that I changed my signature to "User error, strike any user to continue".  I'm glad you got the problem resolved. :thumbup2: 


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