I've heard the older i5s and i7s OCd better, but 800mhz or more off stock voltages... wow.
I got 900, but I needed a good boost in voltage, and 900mhz off of 3.4ghz is a lot smaller % than 800mhz off of 2.8...
I went through the entire tutorial for OCing my CPU, so the voltages are are likely raised a bit, but it isn't in a 'danger zone'. I've read lots of people hitting 4.2 GHz or higher on air with the same CPU. I was hoping to hit 4 as well, but ended up with 3.8, then lowered it to 3.6 after getting some awesomely OC-able memory (The revered Samsung 22nm stuff! - I still have a bunch of 2GB sticks if anyone is interested [was planning on bigAdv, but never materialized] ).
Gero, nice job on that PPD boost this week! Looking at your numbers, they go way up in January. Did you get some goodies for Christmas?
I had someone folding for me as a favor, then switched my main folder back from my "other" team **cough* PNY_Folds *cough** at the end of Feb. Winning a GPU and selling it on the cheap has it's advantages
I switched back due to my points there passing my total here. I couldn't have that!
As for OCing, I take the long process. GPUs are dead simple, CPUs are complex as hell. On a GPU, memory has little to no effect on folding.Here's my process:
I do tons of research on my particular part, look up the relevant settings used by others, use the 'lowest' settings found for a solid OC, subtract a bit, then start my journey from there. For my CPU the process was a week or so and I followed meticulous tutorials and similar materials. For a GPU, the process can take a while, but it's much easier.
On this GPU (Radeon 7970), I started around 1050 MHz or so, stress tested (for me, folded) comfortably for a solid few hours while watching temps and stuff. I start by raising in 10 MHz increments or so, then once I hit too high of temps, artifacting, or failing of some sort, I back it off to before the last change (if I was attempting 1100 from 1090, I back it to 1080). I then move to smaller increments and do the same thing (5, 3, 2, 1 MHz). I don't always go through to 1 MHz, but if I ever have problems, I start backing up by 2 MHz or so at a time (
I have a preference for even numbers, but I also like increments of 5s, sometimes I just say f*ck it and do something like **47 just to mess with myself