I won! I used cpuburn-a8 to heat a Pine64+ up to 105°Ca few hours ago (then I stopped the cpuburn-a8 tasks since I have only 2 Pine64 to play with)
Then the next one is asking why the OS image he downloaded for Marvell Clearfog does not run when inserting the card into a Banana Pi
I understand fully your concerns since it seems enticing to switch SD cards between OPi PC and One (in fact Xunlong tells users to do so, they simply renamed their download section for the PC to One/PC with causes all sorts of troubles on the One due to different voltage regulator and default 'up to 1.6 GHz' settings -- but their users are clueless, they fried their boards happily with wrong dvfs/thermal settings for months -- why should that change now with the One?).
But we already thought about that and maybe we'll add a check for a mismatch between board and actual settings (printing out a warning from motd at login for example). But definitely not for Orange Pi PC vs. One and now. We support a wide variety of boards and the Oranges are definitely not the most important ones. This will be a generic approach but not a quick hack (we already implemented too much of them to get support for H3 in this short time).
Anyway: If you plan to exchange SD cards between both types of boards simply exchange/relink script.bin and adjust the minimum cpufreq settings in /etc/defaults/cpufreq-utils prior to switching the card (I did that the last weeks maybe 50 times or even more).