removing a CMOS battery from a running PC #shorts

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[McObama]

*me, taking out the CMOS battery to save energy and putting it back when i restart.*

[Davy_Great]

I spent 3 hours trouble shooting my build till I finally found that I had yo take out and put back in my CMOS battery. Just thought I would put that here since it reminded me haha

[krabre]

here's a tip, if your PC won't turn on the first time you ever turn it on, do a power drain then remove the CMOS and wait about a mjnute then try again with ur in :))

[dupertuber]

Actually, newer pcs dont have a cmos battery since the way the BIOS stores configuration in newer motherboards is non-volatile meaning it wont reset if the computer loses power. On modern pcs it is just used to keep track of time while your pc is off.

[aaronjamt]

Not always true. As long as the PSU stays on and connected it will keep the settings, date, and time. If the mobo loses all sources of power (AKA both the PSU _and_ the CMOS battery), only then will stuff be lost.

Also, (possibly not so) fun fact: when your computer is off, the power supply is still providing power with always-on pins, hence why you should unplug completely before working on it.

Edit: @Jeff Waters reminded me that you _also_ need to drain any juice in the capacitors on the board. The easiest way is to (once power is disconnected) press the power button. I personally will tap the power button a couple times, hold it for a few seconds, then tap it a couple more times. You can also jitter-click the power button if you have any pent-up rage from troubleshooting computers lol

[FondueFondante]

As long as the computer is plugged in, bios won’t lose it’s settings.
The CMOS battery is only used if the computer is not plugged in.

[aishuop]

Next: *What happens if you remove the power supply from a running computer.*

[table]

I can't get enough of this channel

[hyperfarriergaming]

YAY! Thank you for making the video for me!

[MR.JohnDon]

I was locked up once and smuggled in a lot of computer parts to built a pc but I didn't get a cmos battery with the motherboard so I stole one from one of the computers the guards use and put it in just to get it to turn on then I took it out and returned it but I had kept it running for 16 months without a cmos battery. I had this computer setup in an old storage room nobody knew I could get in. I used the old computer junk they already had in the storage room but they had an old hp compaq windows Vista that didn't have a motherboard for some reason so I had someone delivere it after teaching them how to install the cpu and cooler over the phone. It was an i3 2130 with 8 gb ddr3 on an old dell oem mini itx motherboard.

[Uzi_Doorman-MD]

Oh it properly saves your bio data due to having power even if it is taken out while it's on it is fine due to the main power is giving power to the CMOS area

[ApoorvPradhan]

As I expected, computer running fine 👍🏻👍🏻

[limitless_]

Old video game carts that have the ability to save data also uses a Battery for saving your game..and pokemon used a battery for the time functions in game.

[paulvic]

It may depend on mainboard. For some mainboards, it may effect bios setting. Fortunately, I used a second hand Dell optiplex 3050 sff and I badly damaged cmos battery holder until it could not be used any more. The effect was only after I powered on the pc, it would alarm that time of the day is not correct but other things still worked as usual. The date and time will be sync automatically and correct again after entering widows.

[vixenraider]

I'm surprised you didn't get shocked good video

[wambr]

the battery is powering up CMOS because like RAM its's not state memory and to not lose the bios settings it needs to be powered by this little battery, it's actually pretty useful knowledge
(btw sorry for my english but I can't really write about stuff like that in engliah but I hope you can understand everything)

[zeron]

For certain motherboards, they only save the settings with battery power if it's not plugged in. So if you don't have a battery but still plugged in the settings won't reset even if you restart or shutdown.

[codigoprogramado]

When the PC is on, there are some diodes on the motherboard that divert a part of the 3.3v from the ATX power supply to the CMOS, so it doesn't matter, if you take the battery out the CMOS will still receive 3.0v from the power supply.

[coffeeandchronicles]

Day 21, asking to use honey in place of thermal paste

[piano_arts_]

this thing dosen't affect the pc so much but it might be a little bad because all of your bios settings are gonna be set to default. The battery supplies the bios chip every time which contains the saved data from bios.