yochdog (OP)
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Merit: 1000
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February 24, 2012, 05:21:21 AM |
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Using the beta allowed me to lower the clock.
So who deserves the bounty? I will honor the wishes of the forum!
The latest beta? If so, it looks like you would have got it done regardless (you suggested "the beta" before anyone else did) I thought so too, but I did not want to be seen as suggesting that!
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Elmojo
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February 24, 2012, 02:01:33 PM |
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I seem to be missing something here. The several posts above mine appear to suggest that the issue has been resolved. Has it? Not for me. I still can't drop my mem clocks below the AMD default of Core Clock - 150mV. Has this been resolved and I missed it?
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P4man
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February 24, 2012, 02:11:34 PM |
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So how does it impact performance? AFAIK, you need SDK 2.6 for radeon 7 cards, and with SDK 2.6, hashrate scales pretty good with mem speed (IOW, if you lower your mem speed, hashrates take a nosedive). Am I wrong?
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wachtwoord
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Activity: 2324
Merit: 1125
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February 24, 2012, 05:36:07 PM |
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Using the beta allowed me to lower the clock.
So who deserves the bounty? I will honor the wishes of the forum!
Very simple question and only you can decide: Did any of the specific info posted help you reach the answer (did you already know it or not). If it didn't help no bounty, if it did bounty.
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Elmojo
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February 28, 2012, 12:45:16 PM |
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afterburner (beta 14) will let you lower it to 685. Real value as shown using GPU-Z sensors tab.
Then start your cgminer with -gpu-memclock 685
I'm running cgminer at 1200/685, see my signature for details.
Not with the latest AMD drivers it doesn't. Version 8.96 (Feb 14) pretty much breaks AB completely. In fact, i had to uninstall it to get my card to even run a stock clocks. Hopefully Unwinder will fix it soon, but it's in AMD's lap now.
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Elmojo
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February 28, 2012, 03:16:50 PM |
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Here is my driver's info: Driver Version 8.921.0.0
That's the old driver version I was talking about. With the new driver (8.96), it breaks AB, even Beta 14.
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Elmojo
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February 28, 2012, 03:51:50 PM |
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My bad, I thought I had the latest version.
No problem, this whole thing confuses the heck out of me! I'm debating rolling back to an earlier driver, but I'll probably wait at least until I get my water block installed later this week.
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jake262144
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March 01, 2012, 12:23:22 PM |
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I've installed 8.95.0.0 driver, the pre-certified catalyst http://support.amd.com/us/kbarticles/Pages/AMDCatalystSoftwareSuiteVersion122PreCertified.aspxDriver Packaging Version 8.95-120214a-133662E-ATI AB (beta14) cannot change the values in the BIOS, but I run cgminer with bin from run on older driver and I can run 1177/685. I cannot change the memory clock but I can run it @ 685 So the hack is to downgrade, run cgminer, upgrade, re-run cgminer with its bin from previous run. That's good info, thanks. AMD is doing everything they can to drag users through mud...
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GenTarkin
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Merit: 1002
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March 01, 2012, 03:44:08 PM |
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Try using ati tray tools as well. I dont know if it supports the 79xx series yet but, I used it to lower the memclock on my 6950 to 150mhz (confirmed via gpuz) where all other tools failed to set it this far down.
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