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1  Bitcoin / Mining / Re: Optimizing ATI performance, 6950 in particular on: February 16, 2011, 06:51:45 PM
I think the only way to go past the 840 MHz limit (besides flashing a 6970 bios) is flashing the Asus bios, according to Techpowerup.

Maybe a future version of the Radeon Bios Editor will allow editing the overdrive limit, so we can just modify our card's bios, just like with the shader unlock. That'd be the best option, imo.

@racerx: Slush added a two hour delay for any blocks found by the pool in order to avoid cheating by malicious users. Give it a few hours and you should see some rewards in the 'My Account' section in the pool's site. When the confirmed reward is over the threshold you set, it should be sent to you.
2  Bitcoin / Mining / Re: Optimizing ATI performance, 6950 in particular on: February 15, 2011, 06:09:25 PM
Thanks for explaining it more succinctly and clearly than I did. And thanks for the guide.
3  Bitcoin / Mining / Re: Optimizing ATI performance, 6950 in particular on: February 15, 2011, 05:53:34 PM
You seem to have confused me with OP. We're not the same guy. Wink

I just checked and the pack linked in the article is indeed *one* of the links Grinder posted. However, the php mod patcher isn't in the article, only in Grinder's guide, nor is it included in that pack.

I just wanted to warn people not to follow the the link's steps but Grinder's, since Grinder's guide is for patching the firmware but the link you posted is for flashing the 6970 bios. That is, the guide you link is the old method and Grinder's is the new, safer one.
4  Bitcoin / Mining / Re: Optimizing ATI performance, 6950 in particular on: February 15, 2011, 04:47:51 PM
This link may also be helpful for some more info:
http://www.techpowerup.com/articles/overclocking/vidcard/159

I have a 6950 on route today. Will report back here.

So what client are you running / what OS and what drivers versions etc?

Cheers!

Please, don't follow that article's directions. Those are for flashing a 6970 bios into a 6950 card; such procedure may permanently damage your card, as Grinder writes warns in his post. EDIT: Grinder's guide is the new, safer method.
5  Bitcoin / Mining software (miners) / Re: python OpenCL bitcoin miner on: February 14, 2011, 07:14:13 PM
Hiya,

So I sprung for a 2gb HD6950, it will arrive tomorrow morning Smiley. I was mining with CPU's for a while but Im not sure how to get the best out of this card. I was using Linux previously on my array of CPU miners but the host machine for this card has XP on it at the moment. Any help of getting the most out of it will be appreciated. I was looking for info on the wiki but things seem to be moving a bit fast for that.

1. I will first flash the card to a 6970, ala http://forums.overclockers.co.uk/showthread.php?t=18221844&page=32
2. What hash rate should I be getting? arround 340M#'s for this card. Seems people are reporitng up to that.
3. Will need XP to flash the bios, but does linux yield better results/speed? I'm more comfortable with a command line and it makes remote access easier...
4. PC its going in has onboard video that is auto disabled when a card is in... can the card doing the hashing still be used for video. How does this work?
5. Should I pool with this card or go it solo? Whats the advantages/disadvantages?
5. Any other advice would be really appreciated! Thanks all Smiley

1. I advise you not to flash a 6970 bios. Instead, unlock the additional shaders by modding your card's bios as describe here. Some people got artifacts and fried cards because of the 6970 bios in a 6950 (probably related to the higher core and memory voltage in the 6970 bios). I don't recall anyone having that problem with a modded 6950 bios.

3. Linux seems to yield more Mhash/s per core speed than Windows 7 in my system, but in Linux I can't overclock over the limits imposed by aticonfig/AMD Overdrive, while in Windows 7 I can do so with third-party tools.

You should have posted this in its own thread…
6  Bitcoin / Mining software (miners) / Re: python OpenCL bitcoin miner on: February 09, 2011, 11:19:48 AM
Anyone got 6950/6970 w/ any recommended settings? Any results?

I have a 6950 with unlocked shaders (not a 6970 bios) and I get about 253 Mhash/s at the default clocks with -f 5 -w 256. I'm currently running it at 880 core / 1300 memory, with -f 5 -w 128 -v, which gives me about 282 Mhash/s. I'm using the 10.12 driver and SDK 2.3.
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