Yeah something that Rangerj1 posted, I tried it but could never get it to work.
The procedure from the Overclock.net forum.
Just use /wi4,30,8d,10 for 100mv. The offset is 6.25 mv in hexademical. So on decimal is :16*6.25=100 mv. For 50mv you need 8. For 200mv you need 20( 20=32 on dec. So 32 * 6.25=200mv)
The easy way to do changes:
Create a txt on desktop. Write
CD C:\Program Files (x86)\MSI Afterburner
MSIAfterburner.exe /wi4,30,8d,10
and then save as .bat file. Eveyrtime you start this bat file msi will start with +100mv
For 50mv: 8
For 100mv:10
For 125mv:14
For 150mv:18
For 175mv:1C
For 200mv:20
I wouldn't go over this point because
1)You are close to leave the sweet spot of the ref pcb vrms efficiency
2)These commands add 200mv on top of the 100mv offset through AB gui.That means 300mv
By default /wi command apply to current gpu only. So if you have 2 or more gpus you must use /sg command. That means the command line is something like that
ex:MsiAfterburner.exe /sg0 /wi6,30,8d,10 /sg1 /wi6,30,8d,10