yes i read a bit about fz1 i am using f43 atm that's why i didn't change it yet wanna see this out a bit, but i also felt bad for being a dummy and not backing up mine...
i am not exactly sure if mine has volt control, in msi afterburner i can't change voltage, not exactly sure how i can find out.
Try Trixx, it's so much simpler.
You can run Trixx and GPU-Z at the same time. Use Trixx to set clocks, and GPU-Z to monitor. Make sure to check the mark in GPU-z monitoring page to keep monitoring going when GPU-Z is not up front, and then run a benchmark.
You'll then capture voltage in GPU-Z.
Then, click "RESET" in Trixx, and it will adjust to dual-monitor defaults(1.1 V for older cards, 1.25 V for newer). Bench again, check GPU-Z to see voltage changes, then adjust voltage in Trixx and verify that it works by checking GPU-Z.
F43 is OK, is UEFI version, but I like the 7970 BIOS myself, since it has higher CCC limits, plus low voltage for 24/7, and 1000/1375 clocks. Of course, your card needs to be stable @ 1000/1375 @ 1.1 V before flashing to it.
I had one card I bought that was bad from day one. would not even get 910 MHz on stock voltage, RMA'd back in November, they simply flashed F43 to it, and sent it back. It fixed nothing, so I sent it back again, and the replacement should be here next week. Silly 3-month RMA periods because they fail to test cards properly really pissed me off, let me tell you. I need that card to do reviews!