I hated not being able to undervolt in a7n8x by default, so i finally did that L11 bridge cutting. I cut the sidemost bridge that is beside the factory-cut bridge. This drops the default voltage from 1.65 to 1.25. First i tried with a sharp spike, but after rebooting there was no change. So, next try, i used a knife (actually the knife in a leatherman). Carefully pressing hard with the tip made a clean cut the width of the bridge. Now, when i started the computer, nothing happened. So i got worried. Flipped the on/off switch from the behind of the psu, and after the asus logo on the screen the bios told me that it had not been shutdowned correctly and is in safe mode, please go to bios to check everything. So i did, and found out that the selectable voltage range for vcore was now starting from 1.25 as i expected, but the upper high value was only 1.5V. I think this was a bit bad move from me since it would be good to have the possibility to use the original default voltage. I'll figure out later how to do that. Now, trying to use 1.5V with 166*12.5 default clockings did not work at all, i didn't get anything on screen and the same bios warning came on the next boot. So for now i just tried something like 166*9.5 and with that booted into windows just fine. Now i need to find out the fastest speed i can run with 1.5V. Too bad it won't run default speed with my new maximum voltage setting of 1.5V. I wonder if that is really because of the cpu or could the mobo have something to do with it... Anyway, now i just need to find the limits of my cpu.
Conclusion: Undervolting is possible with quite simple operation not requiring much skill even on motherboards that don't let you undervolt by default, However, it is important for the mobo to let you change the vcore at least upwards, because otherwise selecting different voltages is too hard work. And of course it voids the warranty for the cpu
Btw, anyone any good ideas how to make the upper limit for vcore a bit higher than 1.5V without rejoining the bridge?
