Dell G5 5590

once you upgrade the bios to 1.12, 1.13, you have to go through a process in the bios of switching back to default settings to get undervolting enabled again.

Once in 1.14, it may be locked forever, though I have seen one git repo walking through a complex downgrade procedure. Would be nice if there was a way to add that. Perhaps adding a wiki to the repo?

1.11 was last factory release to allow undervolting. I don’t know of any improvements it added or negatives from it.

1.12 seems to have vastly improved fan handling and run cooler (not the up/down swings) ^check that link closely, might also give fan sensor access info

However, 1.12 seems to hurt performance, according to one user (claimed 20% benchmark reduction)

It is also is the first release to kill undervolting, but it can be restored by going to “default” (different from “factory”) settings in bios.

1.13 seems to allow the same undervolt restore method as 1.12, no known benefits over 1.12?

1.14 - according to last post here, in theory undervolt restore should always work, but that’s not quite a perfect confirmation. It also killed downgraded of bios, but this repo contains a method to overcome that. This is the latest bios as of this writing.

The only motivation for me would be fan cooling, so I should probably do 1.12, but that may reduce performance. Would be nice to benchmark it.

(These are patching plundervolt in 8th and 9th gen chips.)