Well, whatever that link said, it doesn't say it anymore.
One MB on AsusTek's site says,
---------------------------------
"The Ultimate O.C. Processor
Whether novice or enthusiast,
TurboV Evo satisfies overclockers of any level. Intelligently push systems to the fastest, stable clock speeds with Auto-Tuning. Turbo Key boosts performance with a simple touch, while TurboV offers additional advanced options for breaking those records! Moreover, upgrade your CPU at no additional cost with CPU Level UP!"
----------------------------
so I suppose it has somewhat to do with overclocking, but I can't find anyone to confirm that.
At this link, AsusTek offers the choice between:
Turbo V
and
Turbo V EVO
which leads me to believe that "EVO" is the auto-tuning and single key features, a sort of assisted overclocking. (Seems to me that if you want to overclock, you want to oversee it yourself, but I don't OC, so what do I know?)
The people at Frys corporate tell me that the difference is the presence of USB 3.0 ports (false, the non-EVO M5A97 has them) and a FireWire port (the F1A75-V EVO has no FireWire port, so also false).
Whatever EVO is, it means a $25 price difference between the two M5A97 mainboards at Frys, and I can buy a FireWire card from them for ten bucks if that's all it is.
I thought EVO was an ASUS-only marketing thing, but just to confuse matters, apparently Compaq had an "Evo" model sold in 2002-3 that replaced the Deskpro after the merger. This was the ugly, cheap, cheap-looking little one they sold to schools and sweatshops. HP stopped making them in 2003 though, so maybe Asus just picked up the term.