HP 54815A Infinium Scope- PC boot problem

[Tracker]

Hi Folks,
I have a faulty HP 54815A boot problem....

The AMI BIOS boot sequence stops at:
CMOS Settings Wrong
CMOS Display Type Wrong
Keyboard error

Press F1 to Run setup
Press F2 to load default values and continue

It also was reporting a battery problem, but I resolve 3.3v external CR2032 on the Dallas Realtime clock.
I also tried to reset the CMOS using the motherboard jumpers.
So now I reckon it needs to load default values with F2

But here is where I become unstuck!
I don't have an IBM AT type keyboard!!! yikes!
Wonder if I can  I wire a USB keyboard to the Clock and data lines of the AT keyboard socket?

Also, I checked the AT keyboard socket has +5v but I also noticed one of the data lines was also at +5v, this seems odd.   
I suspect this might why I'm seeing the Keyboard error on boot screen, wonder if the Motherboard has an I/O fault?

any advice welcome...

Thanks in advance

[coromonadalix]

Some ps2 keyboards  can or could accept the AT to PS2 keyboard adapter, an usb  keyboard will not work unless you put some interface between them

I have one in my old stuff

https://www.amazon.ca/kenable-AT-Keyboard-PS-Adapter/dp/B003OSTBZA
https://www.amazon.ca/Keyboard-Adapter-6-Pin-Mini-Din-Female/dp/B00005114F/ref=dp_prsubs_2?pd_rd_i=B00005114F&psc=1

[Tracker]

Thanks for that, I might ask my local PC repair shop if he has any old keyboards.