Does it have jumpers/dipswitches? I think I see them on this image, if so then it's not "CPU PLUG AND PLAY", so use the standard one.

Also, it has a nice socketed BIOS ROM, so even if you mis-flash, it's easy enough to fix.

I think I had this exact motherboard some time ago, I just sold it on amibay last month.
It is an awesome motherboard! Congratulations 😀
I remember I wanted to put a 80Gb Hdd on it and I remember updating the BIOS with that version that says "Support IDE HDD size over 65GB"
So it would be "Version s2.a" if I remember correctly . It worked fine after that. Here is the last photo I took from it, I just booted it to make sure it was still working before the shipping:

dionb wrote on 2020-01-26, 23:32:

Does it have jumpers/dipswitches? I think I see them on this image, if so then it's not "CPU PLUG AND PLAY", so use the standard one.

Also, it has a nice socketed BIOS ROM, so even if you mis-flash, it's easy enough to fix.

My MS6119 rev 1.1 is a CPU PnP one, and it hasn't got the FSB/multi dipswitch between the AGP and IDE ports in the picture. So yes, hopefully that could be used to differentiate them. Remember reading something about 1.x boards being standard ones and 2.x ones being CPU PnP when trying to identify mine, but that's obviously not correct.

Might be worth adding that I had some problems with the AWDFlash version that came with the image when flashing the p2.9 BIOS. Had to fall back on AWDFlash 7.70 to get it done.

Also, congrats OP, it's a really nice board 😀

Yes it should be the "CPU PLUG AND PLAY" version.
And thanks for the tip about AWDflash to kaputnik - I will try to update the bios.