Yeah i have tried them too and it does the same thing. only bios that sorta worked for me was the msi bios but i still got power throttling and it idled at 208Mhz instead of 138Mhz
EDIT: I misread... ignore comment about pump, I see 44C in your picture.
Didnt have the right adapter and put some liquid metal on the resistors. Helped a bit as now hits the power limit at .9v instead of .8v haha
Did you right click the files, Properties, Unblock?
You using the nvflash64 command or just nvflash?