This is a great tool! Managed to modify the bios (hex edit) of my sapphires nitro+ Samsung memory and now I can add voltage offset.
I found that setting a -150 actually gives -125  after flashing. -125 gives -100 so whatever you set seems to be off by 25mv.

http://imgur.com/a/7cI0Y

Prepping the rig for linux so I was wondering if anyone had any suggestions as how to set a proper fan curve through manipulating the numbers in the fan tab of SRB Polaris.

http://imgur.com/a/40p63