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Topic: ATI 6970 Optimization - page 2. (Read 11463 times)

sr. member
Activity: 418
Merit: 250
May 23, 2011, 08:15:17 PM
#16
Try phoenix with the latest PhatK kernel, and ati stream 2.4 (latest catalyst)

-k phatk DEVICE=0 VECTORS AGGRESSION=13 -v BFI_INT
newbie
Activity: 11
Merit: 0
May 23, 2011, 08:00:46 PM
#15
With the power bumped up, mine's now sitting at 75-76C.  I've got a case with good airflow, used to have 2x nvidia 8800GTXs in here so the single 6970 is less of a heat challenge.
newbie
Activity: 11
Merit: 0
May 23, 2011, 07:56:28 PM
#14
80C is hot, but I had mine running that hot for a week or so with no stability issues. I improved the airflow in the case and got it down to ~73C. Still, I wouldn't be comfortable keeping it up at 80C or even where I'm at for long.
full member
Activity: 217
Merit: 100
May 23, 2011, 07:29:56 PM
#13
MSI Afterburner and Catalyst control center had the same results.

I am running at 80 degrees C. the fan sounds like a jet engine! haha, I am going to get a few more case fans to focus on the card tomorrow as well.

Is 80 degrees C okay to run at? I have read you want to keep it under 90
newbie
Activity: 11
Merit: 0
May 23, 2011, 07:17:54 PM
#12
On my PowerCooler -v hurts performance (drops to 335Mh/s) unless I bump up the power to +5-7% (more stable with 7%).

You're right... if I set power to +6-7% I get 397-400Mh/s with "-v -w64 -f0"

Must be bumping into the new PowerTune limiter on the 6xxx cards.

newbie
Activity: 11
Merit: 0
May 23, 2011, 06:53:03 PM
#11
On my PowerCooler -v hurts performance (drops to 335Mh/s) unless I bump up the power to +5-7% (more stable with 7%).
newbie
Activity: 11
Merit: 0
May 23, 2011, 06:48:41 PM
#10
I've got the same Powercolor 6970 that mindtheft mentioned. 940Mhz/1425MHz

Win7, Catalyst 11.5

I get ~360Mh/s with defaults in guiminer/poclbm (guiminer 2011-05-21).

If I use "-v -w64 -f0" or "-v -w128 -f0" I only get about 315Mh/s.

With "-w64 -f0" or "-w128 -f0" I get the same ~360Mh/s as with the defaults, so the "-v" appears to hurt performance for my 6970.

member
Activity: 93
Merit: 10
May 23, 2011, 06:23:43 PM
#9
Use MSI Afterburner, Alderswag.

Even though your product may not be MSI branded, it'll be able to OC it better.  Just be sure you're keeping an eye on the temps, you don't want that shit to melt.
hero member
Activity: 886
Merit: 500
May 23, 2011, 06:03:52 PM
#8
hmm I cannot seem to push it past 351 Mhash/s. I am using the Catalyst Control Center on Windows, any ideas why I cannot push this to 400?

Are you overclocked? If not, download MSI Afterburner to do so
full member
Activity: 217
Merit: 100
May 23, 2011, 05:38:22 PM
#7
hmm I cannot seem to push it past 351 Mhash/s. I am using the Catalyst Control Center on Windows, any ideas why I cannot push this to 400?
newbie
Activity: 35
Merit: 0
May 23, 2011, 05:00:11 PM
#6
Hey, I'm running a Sapphire 6970 and getting around the 400 mark. Seems to range between 395 and 410 MH/s.

Using MSI Afterburner:

Core Clock: 950
Mem Clock: 685
Power Control: +50%
Fan Speed: 55%ish, never breaks 60%
Temp: 78ish, never breaks 80 (Can probably get this a little lower but any more than 60% fan speed and it starts to like a jet engine in my little office  Wink )

I also use the -v -w128 flags on the newest GUIMiner.

Hope this helps!
full member
Activity: 217
Merit: 100
May 23, 2011, 04:29:44 PM
#5
those flags you listed acctually lowered it compared to -v -w128 I have it set at now.
full member
Activity: 217
Merit: 100
May 23, 2011, 04:24:03 PM
#4
I changed it to the settings you listed and it went to about 350 Mhash/s. Thanks!
newbie
Activity: 11
Merit: 0
May 23, 2011, 04:10:10 PM
#3
I'm getting just over 400Mh/s, using a 6970 purchased from NewEgg:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131394

AMD Overdrive Settings
GPU Clock 940 MHz
Mem Clock 1425 MHz
Power control +7%
Fan 76%
Temp ~73C

poclbm flags -- -w64 -f0 -v

I've gotten it up to about 450Mh/s tweaking with clock speed and power settings, but it wasn't stable.

newbie
Activity: 14
Merit: 0
May 23, 2011, 03:59:03 PM
#2
I can get 370 Mhash running one using the standard -v -w128 with the latest poclbm, catalyst drivers and sdk at stock clocks. However, I stopped running the card due to concerns about temperatures. Keeping it under 90C requires an awful lot of fan noise in spite of being feed a plenty of a cool air via an array of Noctua fans in an air-conditioned room.

For comparison, my old 5770 does 200 Mhash with a slight overclock while staying in the 60s and generating little noise.

I'd sell the 6970 to a gamer and buy a pair of 5770/5830s if you really want to mine.
full member
Activity: 217
Merit: 100
May 23, 2011, 03:21:38 PM
#1
Hey guys,

I am running an ATI 6970 on Windows and have heard a few people mention I should be able to get above the 330 Mhash/s I am getting. If anyone has any experience optimizing these cards and is willing to offer their advice I would greatly appreciate it!
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