Re: Guide: OCing Sapphire 7970 3GB OC with Boost ( 11197-03-40G ) ~700MH/s
Nothing special really.
-I 9 -k diablo -v 1 -w 256
Thanks for the tip, I switched kernels a few hours ago and I am getting 1-2 Mh/s more (avg). Not 10% so I guess mileage varies, but every little bit helps. -I 9 -k diablo -v 1 -w 256
[EDIT] I noticed that I was getting a lot of rejected shares running diablo, not sure what's up with that. I switched back to poclbm and it seems to have stopped. What clock speeds are you using?
Nice guide, I have this card and might consider trying this.
Two questions:
1. I'm seeing screen fractals (almost always just in the taskbar, nowhere else) when running the card on the overclocked bios bank (1GHz) while bitcoin mining (590Mhash/s). Monitor is nothing fancy, 1280x1024, 19 inch. Running Win 7 and latest driver. Is this normal/okay, and would it be safe for me to follow this guide?
2. Would you think that mining with the side panel of the computer case off would be better for temperatures inside? I do have case fans on the front and back, so I would think it would be a good idea to leave the side panel on to keep the pull of airflow going, but at the same time, having the panel off seemed to work very well at allowing heat to expel right out the side.
Thank you
Two questions:
1. I'm seeing screen fractals (almost always just in the taskbar, nowhere else) when running the card on the overclocked bios bank (1GHz) while bitcoin mining (590Mhash/s). Monitor is nothing fancy, 1280x1024, 19 inch. Running Win 7 and latest driver. Is this normal/okay, and would it be safe for me to follow this guide?
2. Would you think that mining with the side panel of the computer case off would be better for temperatures inside? I do have case fans on the front and back, so I would think it would be a good idea to leave the side panel on to keep the pull of airflow going, but at the same time, having the panel off seemed to work very well at allowing heat to expel right out the side.
Thank you
1. Are you using integrated graphics while mining? I get artifacts when I enable the display output on the 7970 while mining, that's pretty normal since you're using 99% of the GPU then asking it to also render the desktop. I doubt it's anything to worry about. I've read multiple places that damaging hardware is nearly impossible unless you overvolt. Keep an eye on the temps though. Coinslut's concerns about temperature and hardware lifespan are valid.
2. I have an NZXT Switch 810 full tower case with stock fans. It's a 10 fan case with 4 fans. The rear exhaust is designed for 2 120mm fans and comes with 1 ~65CFM 140mm fan. I can't exhaust the heat from 2 GPUs fast enough without an upgrade. My temps drop 10c with the side off. It's something that's happening because airflow is a mess, not something I recommend for everyone.