On Sat, 8 Aug 2020 at 16:00, Samuel Sieb <samuel@sieb.net> wrote:
On 8/8/20 11:34 AM, Joe Zeff wrote:
> On 08/08/2020 11:43 AM, George N. White III wrote:
>>
>> Most systems use a "coin" battery to maintain BIOS settings while powered
>> down.  Unexpected changes after power has been off usually indicate
>> a failed battery; they are generally easy to replace.
>
> I don't know if it's still true, but PrintScreen used to work when you
> were in CMOS, or the BIOS setup screen.  (Probably not; useful things
> like this tend to go away as people forget what they're for.)  The point

I suspect that hasn't worked since parallel port dot matrix printers
went away.  There's no way for the BIOS to be able to print to a USB or
network printer and who has a parallel port any more?

Some recent BIOS's support printScreen to USB:
 https://www.unbxtech.com/2018/04/howto-take-screenshot-motherboard-bios.html

--
George N. White III