I have owned a K70 for years and been happy.. And I was using it with a fairly old ASUS motherboard.
One of the only things I didn't like was that it didn't always work during POST and I just accepted that, perhaps as a fault of the MB.
I have just changed to a 'new' computer, based on an old, but powerful HP server.. And I was disappointed to see I have the same problem.
Its not the end of the world, but its the last problem I need to fix.
I set about proving it today and with the help of a USB keyboard, I can confirm that the K70 simply don't work during POST or in the BIOS.. The whole time I am there there is a white light flashing at the top.
I have tried moving the switch to BIOS and it doesn't help... So I have given up and will source a seperate USB keyboard for the times I need to get to the BIOS.
But its niggling me and I wonder if there is a solution. I know this is a known/legacy problem, but surprised that in 2020 its still a thing?
Does anyone have any thoughts? Or should I just stick with another USB keyboard for the occasional time I need to do "maintenance"?
Jon