Replacing a CMOS Battery in an Older Machine

I got a new video camera, and my old desktop-in-the-basement needed its CMOS battery replacement. Combining those two things resulted in this video showing how I replace the battery.

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#askleo #cmos #cmosreplacement

[Seizuqi]

This video helped me confirm my assumptions about my sisters pc,
it arrived without new thermal paste and its a decade old system with a 4790k and a gtx 970, the fans didnt spin, the cables werent managed, the drive wasnt screwed in, the cooler was wonky, and there was a freaking dead moth in it, R.I.P.
after cleaning it up and fixing it, i loaded an ssd with a rufus windows 11 requirement bypassed os and it just worked, however this issue as seen in the video was a problem
i made the mental connections of cmos battery and clearing cmos and whatnot so eventually i did some web surfing and found this, almost confirming my suspicions
a temporary solution i made until the cmos btry comes later today is that i deselected the option that shows the f1 error screen and instead it just restarts and boots to windows
this is obviously not ideal because my settings get deleted every time even though the end user doesnt know anything bad happened, im very grateful to the goodsir that made this video, i thankyou, otherwise it may have taken me a few more days to think on my own what the problem is, and the user of that pc would not appreciate that, thanks :)

[obsidiansea]

TLDR: My computer wouldn't boot up and replacing the CMOS battery fixed it!
In case anyone else has the same problem I had, my computer (it's old) would not boot for nothing. I switched out the power supply (wasn't it), replaced the power switch cable since I'd had an error message for that (wasn't it), and bought a new motherboard and was about to swap that when I learned about the CMOS battery. I replaced it, plugged it in, and the power supply kicked on and off repeatedly a few times until it finally stayed on, and the computer booted up all by itself. I didn't even press the power button. I was in complete shock that it fixed it. I did not have to remove anything to access the battery. I thought for sure I'd have to remove the graphics card but when it was not coming out, I decided to try to do it without removing the graphics card. I used needle-nosed pliers to squeeze the tab & release the battery and it popped out. No problem. Also, I never changed the BIOS settings so them resetting wasn't a problem.

[SamuraiGuy]

I think touching the case to prevent static electricity buildup only works when your power supply is plugged in.

[HenrikSteenLarsen]

Thanks. I just changed a 13 year old battery - and it worked :)

[ciao]

Thank you for sharing your expertise. Happy New Year 2023👏👏

[hankdeselden]

Hello Leo: In taking out battery you used a small tool to pry out battery after pushing small catch back. What tool you use ?Where did you pry the battery at? My battery won't just come out by pushing catch back!

[Seizuqi]

My easter present to my sister is a cmos battery to fix her computer, i swear im such a shit big brother lmao

[vellen]

Thanks, I finally found the battery in my old Aurora ALX.

[jlindell]

hello . why didn't you show how to change date and time and boot drive sequence? also why didn't you press f1 to get into setup ? as i need to know how to do it cheers

[johngronkowski]

How did you put it back in so easily that's impressive

[troyleong]

Hi Leo....I have a DELL XPS 8700. I purchased it in 2013. Was wondering if you think I'd need to change my CMOS battery? Also when you put in a new battery....do you have to reset the date and time? Not sure if that came up or not? Thanks for your videos they are very :)

[selfeducation]

Thanks was worth a try changed battery still nothing won't try to to start . So not power cord not battery .Must be something else ?

[davedennis]

I watched this because I have 2 OLD machines I want to change them in. One of those is this computer I am typing this on. I just upgraded the chip from Sempron to a Phenom II. It was definitely a good move. This old machine got a new spring in its heal. Thanks.

[Knight-Orthodox]

You are legend sir.. thank you.. this video details and informative

[Thisistrue]

But... but... I wanna see the new camera you mentioned here!

[jasonengelage]

i have a computer which when you turn it on it immediately goes into power saving mode and shuts off. Could this be an issue with the battery?

[TroyTeyema]

Do you need to pull the RAM out of the machine before you do this?? Thx!

[TrapCardDis]

I’m changing my 1-2 year old battery… idk why I need to, I think I turned pc off when it updated?? But idk why it’d affect it

[Vector_Ze]

I recently noticed my desktop is losing about 4 seconds per day. This PC is rarely tuned off, and rebooted only every so often.
Is this a sign of a dying battery backup?

[gw]

What if the time and date are not visible in bios?