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What's the dual bios though and how do I invoke it - is that the difference?
The card should have a tiny switch on it which gives you two options --- default or overclocked bios.
Not sure on the specifics, but it goes like this:
Core Clock: 950 / 1000MHz if set to overclocked bios
Effective Memory Clock: 1425MHz(5.7Gbps) / 1450MHz(5.8Gbps) if set to overclocked bios
The switch is tiny, but once I found it, I get steady 590 Mhash/s on the overclocked bios bank using GUIMiner (I believe overclocked is bank #2)
Re: Guide: OCing Sapphire 7970 3GB OC with Boost ( 11197-03-40G ) ~700MH/s
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.
Thank you for the help.
I'm using the 7970 to mine and display my desktop, so that makes sense. I have a feeling I get better Mhash/s when the monitor is off, because the fans on the GPU sound different as soon as I turn the monitor on.
The tasks I do on the computer usually don't require the help of the 7970 --- motherboard has onboard 256mb graphics --- is it possible to use the onboard graphics for my display while the 7970 is dedicated to mining?
Re: Guide: OCing Sapphire 7970 3GB OC with Boost ( 11197-03-40G ) ~700MH/s
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
There are some sites where you can earn bitcoins from visiting some websites, reading some captchas, answering some polls, etc.
But it is very very very slow !
But it is very very very slow !
Yup. Not sure if this wiki is kept updated, but here is a short list: https://en.bitcoin.it/wiki/Trade#Free_Samples_and_Offers
Also, there is a thread here in the newbies section listing similar types of sites.
I made quite possibly the dumbest mistake anyone can make, so I doubt this is your problem, but I'll mention it anyway - the AMD Engine Control Center software has a Performance section where it's possible to set the speed that the card will run at. Regardless of what the bios is set to, it will always go by what the software is telling it to do, so if you have the "OverDrive" setting enabled and set to a low speed, the card will only operate at that speed. If that is enabled, disable it.