Dead cmos

[wei406015]

Could dead cmos battery affect pc booting up?
Need to know if any cr2032 battery will work as a replacement

Sent from OPPO CPH1719 using GAGT

 

[Koenig168]

Yes and yes.

 

[eric3743]

Could dead cmos battery affect pc booting up?
Need to know if any cr2032 battery will work as a replacement

Sent from OPPO CPH1719 using GAGT

How to replace the CMOS battery

 

[hexenB]

Could dead cmos battery affect pc booting up?
Need to know if any cr2032 battery will work as a replacement

Sent from OPPO CPH1719 using GAGT

Retail motherboards like asus , msi, asrock, gigabyte etc, you can boot up the pc and go into windows without any cmos battery installed (or dead battery), just need to press F1 to load defaults at Post screen. The cmos battery is simply for keeping date/time and your settings. Without cmos battery (or dead), it will still boot into windows.

For oem/branded desktop/laptop like dell etc, majority will still boot into windows without any cmos battery (or dead), but some may not boot though.

 

[cscs3]

Retail motherboards like asus , msi, asrock, gigabyte etc, you can boot up the pc and go into windows without any cmos battery installed (or dead battery), just need to press F1 to load defaults at Post screen. The cmos battery is simply for keeping date/time and your settings. Without cmos battery (or dead), it will still boot into windows.

For oem/branded desktop/laptop like dell etc, majority will still boot into windows without any cmos battery (or dead), but some may not boot though.

More then just time/date.
Also some hardware configuration, password (if set) etc.
If you happen to boot into windows with very much back dated time/date. OS may post unlicensed product message.