No, my OC switch is off...
So he is still 100 mh/s above my rate...
Topic: 6990 Settings Windows - Stable - 432-455 MH/s per GPU (Read 11074 times)
No no - per core for him is 450 mh/s. So 900 combined. I dont know how. In windows Im get 410 mh/s per core combined 820.
Im saying you hve to run two seperate instances which you apparently are. 350 is a little low. Are you on OC switch?
Im saying you hve to run two seperate instances which you apparently are. 350 is a little low. Are you on OC switch?
Ah, that means he has for both instances all together 455 Mh/s?
I have per core about 330-350 Mh/s. But I can not believe that linux is that much faster... or am I wrong?
I have per core about 330-350 Mh/s. But I can not believe that linux is that much faster... or am I wrong?
You need two instances running. One for each core.
Is mining under LinuxCoin much slower than under windows? I make only about 330-350M with same configuration like the first post... 
@Jack of Diamonds - I don't have any 6990's but out of 7 AMD/ATI cards I've got so far, 5 of them had crappy TIM/thermal paste applications. I'd bet cleaning and re-applying with some quality thermal paste could solve your issue with that overheating core.
Getting 440Mh/s per core just from GUI miner's OpenCL with -v -w128. No mods or anything in this thread aside from the overclocked switch on and the cores at 920mhz along with powertune at 10%.
Yet when I do the pheonix phatk mod along with the flags, I only get 340-380Mh/s. So peculiar.
Yet when I do the pheonix phatk mod along with the flags, I only get 340-380Mh/s. So peculiar.
Actually, I see the opposite...
Is that not the strangest thing? Kind of doesnt make sense. What is so different in our setups then?
Getting 440Mh/s per core just from GUI miner's OpenCL with -v -w128. No mods or anything in this thread aside from the overclocked switch on and the cores at 920mhz along with powertune at 10%.
Yet when I do the pheonix phatk mod along with the flags, I only get 340-380Mh/s. So peculiar.
Yet when I do the pheonix phatk mod along with the flags, I only get 340-380Mh/s. So peculiar.
Actually, I see the opposite...
Getting 440Mh/s per core just from GUI miner's OpenCL with -v -w128. No mods or anything in this thread aside from the overclocked switch on and the cores at 920mhz along with powertune at 10%.
Yet when I do the pheonix phatk mod along with the flags, I only get 340-380Mh/s. So peculiar.
Yet when I do the pheonix phatk mod along with the flags, I only get 340-380Mh/s. So peculiar.
Instance 1 - GUI Miner, OpenCL -v -w 128
OC Switch = On
812 Mhash/s combined
920MHz core
Memory clock doesn't effect my rates.
100% fan
Temperature hovers 77C
Instace 2 - GUI Miner, Pheonix, Phatk, EXACT flags as OP
OC Switch = On
784 Mhash/s combined (390 each or lower)
920 MHz core
850MHz clock is optimal, the hash doesn't move as much
100% fan
Temperature hovers 80C
I tried using AOLCBF. It won't run correctly on my rig, the Run button gets pressed and it simply becomes grey with no response. I do use it to set the memory clocks under the regular.
Tomorrow Im going to try without the OC switch but I CANT see it somehow making my results better.
Im on bitcoins.lc if that makes a difference. You think maybe?
OC Switch = On
812 Mhash/s combined
920MHz core
Memory clock doesn't effect my rates.
100% fan
Temperature hovers 77C
Instace 2 - GUI Miner, Pheonix, Phatk, EXACT flags as OP
OC Switch = On
784 Mhash/s combined (390 each or lower)
920 MHz core
850MHz clock is optimal, the hash doesn't move as much
100% fan
Temperature hovers 80C
I tried using AOLCBF. It won't run correctly on my rig, the Run button gets pressed and it simply becomes grey with no response. I do use it to set the memory clocks under the regular.
Tomorrow Im going to try without the OC switch but I CANT see it somehow making my results better.
Im on bitcoins.lc if that makes a difference. You think maybe?
FYI I discovered these settings work great for any cayman processor. I have a 1x6990 and 1x6970 configuration and also tested on a 2x6970 configuration. 910/840/Factory voltage works well. Here's a screencap from the 2x6970 machine.
I'm running xpsp3 and 11.6b drivers.
The dual 6970 configuration seems superior to 1x6990 for cost, availability and cooling reasons, assuming you've got the slots.
http://i723.photobucket.com/albums/ww239/axsever/2x6970cap.jpg
I'm running xpsp3 and 11.6b drivers.
The dual 6970 configuration seems superior to 1x6990 for cost, availability and cooling reasons, assuming you've got the slots.
http://i723.photobucket.com/albums/ww239/axsever/2x6970cap.jpg
What is this 3% patch for phatk?
sorry I haven't replied, been moving around a fair bit, im over in the states now so running my bitcoin machine from vnc viewer... yeah I will be glad to send you a screenshot of those setting and hash rates, Currently not running them at that setting due to being away and wanted something I know is stable in case I run into any problems... yeah my signature changes all the time depending on the pool server, I have seen my signature at 2800+ hash rate which I know is not possible, I also have stale fairly high stale rate due to the mining pool server I am connecting to. anyway would you like the screen shot in GUIminer or Aoc?
//Edit
Screenshot
//Edit
Screenshot
His picture in the signature shows now: 2314 Mhash/s
Some calculation reveals: 2314 Mhash/6 cores = 385,6 Mhash per core.
Some calculation reveals: 2314 Mhash/6 cores = 385,6 Mhash per core.
Departure is running on PowerColor 6990. I have Sapphire 6990.
Any others try this? Does it work for you, or not?
Any others try this? Does it work for you, or not?
Nope. I get about 405-410 mhash/s per core at 900 or 910 OC.
Had to point 2 table fans at the card to keep it cool, too.
Tbh I just don't see how you could get 450mhash/s with 910 core clock. I'm not calling you a liar by any means, but proof would be nice.
Since all 6990's are reference (they are all exactly the same except for the stickers of the manuf. on the front)
it can't be a hardware issue.
What kind of average hash rate are you getting reported at the pool your mining through? Does it match up with what your seeing on your miner? Also, what is your stale shares percentage when mining at those speeds with Phoenix?
Departure is running on PowerColor 6990. I have Sapphire 6990.
Any others try this? Does it work for you, or not?
Any others try this? Does it work for you, or not?
Is the OC switch on?
Yeah I have the OC switch on and the voltage set to 1.12v since 1.175v made no improvement in hash rate.
I have two XFX 6990's.
Hmmm... I do have 450 CFMs blowing over the cards... my OC switch is on.
I've been testing these settings shown here in this thread as well as others on my 6990 for the last two days using GUIMiner and Phoenix 1.50 along with all the kernel tweaks I could find and I'm not getting anywhere near 432-455Mh/s. At 910/840 clock speeds using the flags (-k phatk VECTORS BFI_INT AGGRESSION=7 WORKSIZE=128) on Windows 7 x64 with the 11.7 CATs I'm getting about 407 Mh/s which is 25-48Mh/s less per core. So if you guys are actually getting speeds in the range of 432-455 Mh/s at 910Mhz there must be something else going on here allowing the higher hash rate other than just using the settings mentioned otherwise the results would be more replicable.
I agree with that.
I am running two Gigabyte 6990s + ANTEC HCP-1200 + W7 64bit + Sabertooth P67 B3 + i5-2400S and I've tested the above settings with 11.6, latest phatk, 3%-patch, -k phatk VECTORS BFI_INT AGGRESSION=7 WORKSIZE=128, didn't touch the AUSUM switch at all, running @ 910/840 Mhz, ... i couldn't reproduce the Mhashrate. GUI-Miner shows ~399.6 Mhash/s for each core.
@ 910/625 Mhz all cores running @ 404,3 Mhash/s with -k phatk VECTORS BFI_INT AGGRESSION=11 WORKSIZE=128. Switching back to my standard setting -> 870/625 Mhz = steady 385,7 Mhash/s on each core. That's enough for me.
I came to the conclusion that it has something to do with the excellent cooling solution i saw in the second picture + AUSUM switch to overclocked position + possibly something special we don't know. If i could see a picture of the Mhashrate + settings + clocks for all three cards then i would believe it, when not i think it's a hoax.
Jump to: