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Topic: Downclocking 6970 Memory! (Read 4605 times)

member
Activity: 107
Merit: 10
June 09, 2011, 06:11:45 PM
#22
have a 6950 unlocked..clocked at 970mhz...fan at 90% keeps it at 66 C
member
Activity: 109
Merit: 10
June 09, 2011, 06:02:24 PM
#21
I completely disabled ATI Overdrive stuffin CCC, and then everything stayed where it's supposed to. I think the overdrive stuff sets max limits and then dynamically changes based on what it thinks it needs due to load.
newbie
Activity: 39
Merit: 0
June 09, 2011, 05:55:51 PM
#20
http://dl.dropbox.com/u/7043267/Gpu2.png


Still won't bring the clock down enough. Also MSI afterburner doesn't have any power options for me so when I use it the Mhash rate goes way down to 311 instead of 406.

I did this with my 6870 cards and set them to 300 in MSI afterburner but as soon as i start mining the graphs on the right (if you scroll down you will see the memory clock graph) it spikes to 1050 (stock clock).  as soon as i shut off the miners it drops to 300

anyone know how i can get the card to run at 300 while at full load?
member
Activity: 111
Merit: 11
June 09, 2011, 05:41:17 PM
#19
Sombody knows how far i can overclock the 9760 savely? At the moment I'm at 960/1100 with 74°C and ~411mhash with 60%Fan (stable).
Did I only need to look at the temperature or are there any other variables to take care of?
newbie
Activity: 11
Merit: 0
June 08, 2011, 11:37:54 PM
#18
Add FASTLOOP=false to your options as well.

Shot it up by 1 Mhash heh.
Every Mhash helps! 1Mhash/sec*60sec==60Mhash more per minute. Work that out to a month.  It adds up!!

True that.
newbie
Activity: 11
Merit: 0
June 08, 2011, 11:37:21 PM
#17
Also I might add that the 6970's are XBOXHUGE compared to my puny 5850.
http://img24.imageshack.us/img24/3410/sam0291.jpg
member
Activity: 109
Merit: 10
June 08, 2011, 11:35:32 PM
#16
Add FASTLOOP=false to your options as well.

Shot it up by 1 Mhash heh.
Every Mhash helps! 1Mhash/sec*60sec==60Mhash more per minute. Work that out to a month.  It adds up!!
newbie
Activity: 11
Merit: 0
June 08, 2011, 11:32:36 PM
#15
Add FASTLOOP=false to your options as well.

Shot it up by 1 Mhash heh.
member
Activity: 109
Merit: 10
June 08, 2011, 11:22:19 PM
#14
Add FASTLOOP=false to your options as well.
newbie
Activity: 11
Merit: 0
June 08, 2011, 11:16:58 PM
#13
Quote
6970 on 406 Mhps at 74C? Nice! Seriously, that's cool and quite for these stupid things. Can't get any 58xx where I live, and my only option is watercooling whic as a mechanical klutz I'm not sure I can do. If you you hate the noise, return 'em. I've got 6990's and I have to go with a 6970 for my next card.

BTW, what settings (OC, UC, miner and flags) are giving you 406 Mhps on your 6970? Also, downclocking mem below 440 drastically increases stales on my 6990, and below 550 increases them from 0.5% to 1.5%. Something to keep in mind when you UC mem.
http://dl.dropbox.com/u/7043267/OC.png 1002/340
I used the CCC(Amd OverDrive) to turn up the +20% power after I used the MSI Afterburner, cause it was only getting like 340 or something without it. Too bad MSI afterburner doesn't have that option :/
Using the newest GUIminer with phoenix miner flags are: WORKSIZE=128 BFI_INT AGGRESSION=11 VECTORS (Haven't really messed with the flags that much)
If I get tired of the fans I might get a watercooling unit.

Edit: also might be worth getting Phoenix rising instead of GUI miner; due to the fact that you can set it to cooldown after it hits a certain temperature as a precaution so you don't brick your cards.
donator
Activity: 2058
Merit: 1007
Poor impulse control.
June 08, 2011, 10:19:22 PM
#12
Very welcome!

Have fun and go make some BTC!  Grin

Haha yep. Ty. I actually got the 6970 today, regretting it though.
I overclocked my 5850 to 342 Mhashes and it's running at a cool 61c (Fan at 40%) while the 6970 is getting 406 Mhashes @74c with the fan at 70%.
Might try to return it and pickup 2 more 5850's, possibly setup a new rig.

6970 on 406 Mhps at 74C? Nice! Seriously, that's cool and quite for these stupid things. Can't get any 58xx where I live, and my only option is watercooling whic as a mechanical klutz I'm not sure I can do. If you you hate the noise, return 'em. I've got 6990's and I have to go with a 6970 for my next card.

BTW, what settings (OC, UC, miner and flags) are giving you 406 Mhps on your 6970? Also, downclocking mem below 440 drastically increases stales on my 6990, and below 550 increases them from 0.5% to 1.5%. Something to keep in mind when you UC mem.
newbie
Activity: 11
Merit: 0
June 08, 2011, 09:57:05 PM
#11
Very welcome!

Have fun and go make some BTC!  Grin

Haha yep. Ty. I actually got the 6970 today, regretting it though.
I overclocked my 5850 to 342 Mhashes and it's running at a cool 61c (Fan at 40%) while the 6970 is getting 406 Mhashes @74c with the fan at 70%.
Might try to return it and pickup 2 more 5850's, possibly setup a new rig.
member
Activity: 109
Merit: 10
June 08, 2011, 09:40:53 PM
#10
Very welcome!

Have fun and go make some BTC!  Grin
newbie
Activity: 11
Merit: 0
June 08, 2011, 09:23:23 PM
#9
Have you made the appropriate changes to the afterburner config?

Code:
[ATIADLHAL]
UnofficialOverclockingEULA   = I confirm that I am aware of unofficial overclocking limitations and fully understand that MSI will not provide me any support on it
UnofficialOverclockingMode   = 1
AccessibilityCheckingPeriod   = 0

Only other thing I can think of. Hopefully that gets you going.  And yeah, just restart MSI Afterburner, not your PC!

cent

BEAUTIFUL. Thank you so much!!!
member
Activity: 109
Merit: 10
June 08, 2011, 09:19:37 PM
#8
Have you made the appropriate changes to the afterburner config?

Code:
[ATIADLHAL]
UnofficialOverclockingEULA   = I confirm that I am aware of unofficial overclocking limitations and fully understand that MSI will not provide me any support on it
UnofficialOverclockingMode   = 1
AccessibilityCheckingPeriod   = 0

Only other thing I can think of. Hopefully that gets you going.  And yeah, just restart MSI Afterburner, not your PC!

cent
newbie
Activity: 11
Merit: 0
June 08, 2011, 08:57:56 PM
#7
In afterburner, lower the memory speed all the way down, click apply.  Then close afterburner and restart. You should then be able to decrease the memory even further.


Did exactly as you said. Brought it down to the lowest. Applied, closed out. Restarted. No cigar though.
Same minimum clock as before.

He means restart after burner, not your pc. If thats what you did.

I did both. :3 Still not going down either way :[
hero member
Activity: 700
Merit: 500
June 08, 2011, 08:56:55 PM
#6
In afterburner, lower the memory speed all the way down, click apply.  Then close afterburner and restart. You should then be able to decrease the memory even further.


Did exactly as you said. Brought it down to the lowest. Applied, closed out. Restarted. No cigar though.
Same minimum clock as before.

He means restart after burner, not your pc. If thats what you did.
newbie
Activity: 11
Merit: 0
June 08, 2011, 08:52:49 PM
#5
In afterburner, lower the memory speed all the way down, click apply.  Then close afterburner and restart. You should then be able to decrease the memory even further.


Did exactly as you said. Brought it down to the lowest. Applied, closed out. Restarted. No cigar though.
Same minimum clock as before.
member
Activity: 109
Merit: 10
June 08, 2011, 08:44:56 PM
#4
In afterburner, lower the memory speed all the way down, click apply.  Then close afterburner and restart. You should then be able to decrease the memory even further.
newbie
Activity: 11
Merit: 0
June 08, 2011, 08:42:21 PM
#3
http://dl.dropbox.com/u/7043267/Gpu2.png


Still won't bring the clock down enough. Also MSI afterburner doesn't have any power options for me so when I use it the Mhash rate goes way down to 311 instead of 406.
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