Dead System Battery = No Boot?

Started 4 months ago | Questions thread
SC489 Senior Member • Posts: 1,441
Re: Dead System Battery = No Boot?

SantaFeBill wrote:

I'm getting a warning that the voltage in my system's battery is low. (The battery is very old - I'm sure the warning is correct.)

I read somewhere that if the system battery dies, the computer will no longer boot. (PC, Windows, desktop, connected to an UPS).

Is that correct?

Thanks to all.

You are lucky to get a warning. My 2012 Gigabyte motherboard suddenly fails to boot and is dead if the CMOS battery voltage drops to 2.8V. This happens about every 2 years since the PC is off at the mains much of the time and relies on the battery to save the BIOS values. The problem is easily sorted by replacing the CMOS battery. Fortunately my motherboard saves BIOS settings and I can easily recover my preferred settings.

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