Hey guys I finally got around to installing my new card. I was delayed due to the extensive length of my holiday honey do list.
Anyway, the installation was quite the ordeal. My case in the sig, I've used since my first build in 04 which was a P4 Prescott (yes that one). It would now be considered on the small size. I like it however, and have built a stand for it that works with our office furniture. Plus it passes the WAF.
I started with a tiny 9600XT and moved up to an AGP X1950Pro but to fit my current 5870 I had to move a couple of drives around because the card and middle two drives were interfering with each other.
Well the Lightening is even larger, in every dimension. I ended up having to take the back-plate off ,(the plate that attaches to case and surrounds the DVI and DP connectors.). After shoe-horning the card in, I had to reattach the backplate while partially mounted in the case which was a real PITA.
Then when I went to boot up, the computer would start to boot and then turn off. It would even cycle on and off without hitting the power button.
Turns out a wire had come loose from the power button. I temp fixed that and finally got the computer to boot.
I haven't really put the card through its paces yet. I've only played some ME3 and SC2. Neither of which is very demanding. The card is idling at 33C and peaking below 50 during gaming which is incredible.
I'm going to load up Skyrim tomorrow and crank all the settings and see how it fairs. I may pick up Futuremark and give that a shot.
Other thoughts, I still need to load the MSI software and again I have the normal lightening ghz edition not the boost edition. But if someone wants the bios I'll provide it. Also on running the 12.11 beta drivers.
woah.... they arent shy going with 1.25v for the stock clocks although you do have a boost edition. My 2 regular lightings run 1.175v. 1 of my cards will do 1200+ on the stock voltage yet my other one needs 1.275 to do 1200.
Just out of speculation based on what my cards do and what I think I know about asic, I'm guessing that you would need around 1.225 or so for a true stable 1200. I more or less pulled that number out of my arse but I have 6 7970's worth of overclocking under my belt and they all pretty much followed a trend
start at 1.275v (sounds like a lot but the card is built like a tank and can handle 1.35 and beyond). Play an intense game for a bit or run a benchmark like the AMD Leo Demo and monitor temps and check for artifacts. Hopefully and likely you are stable.
work you voltage down from there until you reach instability and bump it back up a notch or 2.
Ram can almost definately set and forget at 1600mhz.
1200/1600 will give you a monster card and not be beating on it very much.
What is your cards Asic score? Do you know how to check that?
Load up GPU-z and right click on the top of the app, if you do it on the words (techpowerup) it'll work. A menu will pop up, scroll down to "Read asic quality" and click that. It will give you a score % number.