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Topic: 3 x 6990 mining rig, need help - page 2. (Read 2181 times)

full member
Activity: 126
Merit: 100
December 19, 2013, 10:49:16 AM
#26
The best i can get working untill now is;


-I 17 --thread-concurrency 7040 --gpu-fan 100 --gpu-engine 880 --gpu-memclock 1250
full member
Activity: 126
Merit: 100
December 19, 2013, 10:46:37 AM
#25
Now using 2 x 4GB Ram (kingston 1600 DDR3).
Still the same problem. It crashes and so on Sad.



Problem signature:
  Problem Event Name:   APPCRASH
  Application Name:   cgminer.exe
  Application Version:   0.0.0.0
  Application Timestamp:   5278f3b2
  Fault Module Name:   aticaldd.dll
  Fault Module Version:   6.14.10.1741
  Fault Module Timestamp:   501340a0
  Exception Code:   c0000005
  Exception Offset:   00008ea0
  OS Version:   6.1.7600.2.0.0.768.3
  Locale ID:   2067
  Additional Information 1:   0a9e
  Additional Information 2:   0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:   0a9e
  Additional Information 4:   0a9e372d3b4ad19135b953a78882e789
full member
Activity: 126
Merit: 100
December 19, 2013, 09:01:15 AM
#24
So the problems that occure when using high settings (these settings worked for 2 cards); thread 8192, i 18



CGminer crash;
Problem signature:
  Problem Event Name:   APPCRASH
  Application Name:   cgminer.exe
  Application Version:   0.0.0.0
  Application Timestamp:   5278f3b2
  Fault Module Name:   aticaldd.dll
  Fault Module Version:   6.14.10.1741
  Fault Module Timestamp:   501340a0
  Exception Code:   c0000005
  Exception Offset:   00008ea0
  OS Version:   6.1.7600.2.0.0.768.3
  Locale ID:   2067
  Additional Information 1:   0a9e
  Additional Information 2:   0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:   0a9e
  Additional Information 4:   0a9e372d3b4ad19135b953a78882e789

CGminer error:
enqueueing kernel onto command queue. (clenqueuendrangekernel)



Or just a ticking CMD screen when nothing happens.

Also seems that it takes a lot of time before CGMINER actually runs.

I'll try more RAM now.

sr. member
Activity: 616
Merit: 300
December 19, 2013, 08:57:28 AM
#23
Is 2GB ram enough for 6 GPU's?

as a rule of thumb, i usually match the system ram with the gpu ram, so say 2 x 6990s is 8gb, so system ram min would be 8 gb
So that might be the problem..because starting CGminer can take like on minute before it actually does something?
And sometimes it doesn't start but the black CMD box stays empty.


Wow 4 x 6990 really? In windows?


My setup;

Asrock 970 Extreme 4
Sempron 145
CM Silent Pro 1500W
2GB RAM



that was under linux mind you, but i did have 3 running in windows at one point too.

it seems to me you need to get some more system ram, its dog cheap anyway
Did I buy the correct RAM?

Mushkin DIMM 2 GB DDR3-1066,

if your system booted it should be ok, check your mobo specs.

you could also try input the ram timings manually in the bios
full member
Activity: 126
Merit: 100
December 19, 2013, 08:56:07 AM
#22
Is 2GB ram enough for 6 GPU's?

as a rule of thumb, i usually match the system ram with the gpu ram, so say 2 x 6990s is 8gb, so system ram min would be 8 gb
So that might be the problem..because starting CGminer can take like on minute before it actually does something?
And sometimes it doesn't start but the black CMD box stays empty.


Wow 4 x 6990 really? In windows?


My setup;

Asrock 970 Extreme 4
Sempron 145
CM Silent Pro 1500W
2GB RAM



that was under linux mind you, but i did have 3 running in windows at one point too.

it seems to me you need to get some more system ram, its dog cheap anyway
Did I buy the correct RAM?

Mushkin DIMM 2 GB DDR3-1066,
sr. member
Activity: 616
Merit: 300
December 19, 2013, 08:55:39 AM
#21
Is 2GB ram enough for 6 GPU's?

as a rule of thumb, i usually match the system ram with the gpu ram, so say 2 x 6990s is 8gb, so system ram min would be 8 gb
So that might be the problem..because starting CGminer can take like on minute before it actually does something?
And sometimes it doesn't start but the black CMD box stays empty.


Wow 4 x 6990 really? In windows?


My setup;

Asrock 970 Extreme 4
Sempron 145
CM Silent Pro 1500W
2GB RAM



that was under linux mind you, but i did have 3 running in windows at one point too.

it seems to me you need to get some more system ram, its dog cheap anyway
full member
Activity: 126
Merit: 100
December 19, 2013, 08:53:16 AM
#20
Is 2GB ram enough for 6 GPU's?

as a rule of thumb, i usually match the system ram with the gpu ram, so say 2 x 6990s is 8gb, so system ram min would be 8 gb
So that might be the problem..because starting CGminer can take like on minute before it actually does something?
And sometimes it doesn't start but the black CMD box stays empty.


Wow 4 x 6990 really? In windows?


My setup;

Asrock 970 Extreme 4
Sempron 145
CM Silent Pro 1500W
2GB RAM

sr. member
Activity: 616
Merit: 300
December 19, 2013, 08:52:09 AM
#19
Is 2GB ram enough for 6 GPU's?

as a rule of thumb, i usually match the system ram with the gpu ram, so say 2 x 6990s is 8gb, so system ram min would be 8 gb
sr. member
Activity: 616
Merit: 300
December 19, 2013, 08:51:08 AM
#18
whats the rest of your spec? how much main memory have you got ? powersupply?

I had 4x6990s running on my rampage iv extreme x79 at one point with no probs, cpu i7 3970x, 64 gig ram, 1600watt psu
full member
Activity: 126
Merit: 100
December 19, 2013, 08:50:10 AM
#17
Is 2GB ram enough for 6 GPU's?
full member
Activity: 126
Merit: 100
December 19, 2013, 08:48:25 AM
#16
another thing to note is the drivers,

make sure you do not install the ccc suite, you only need to driver and not the control centre.

use atiman uninstaller to remove the drivers if you have already installed the catalyst suite.

the latest 13.11 beta drivers work well
CCC is not installed. This is 13.11 indeed.


When I use a higher thread concur or intensity I get:

-cgminer won't start at all
-cgminer starts with following error;
enqueueing kernel onto command queue. (clenqueuendrangekernel)

And this while 2 cards gave me a stable +2K hash rate.
sr. member
Activity: 616
Merit: 300
December 19, 2013, 08:46:35 AM
#15
another thing to note is the drivers,

make sure you do not install the ccc suite, you only need to driver and not the control centre.

use atiman uninstaller to remove the drivers if you have already installed the catalyst suite.

the latest 13.11 beta drivers work well
full member
Activity: 126
Merit: 100
December 19, 2013, 08:45:48 AM
#14
those are rather low specs for 6990, I get 500+ from each gpu on my 6990s,

use msi after burner to undervolt them to 1110, (just change the voltage nothing else) set custom fan speeds of about 85%

try my cgminer settings

GPU_MAX_ALLOC_PERCENT=100
cgminer --scrypt --thread-concurrency 8192 -o stratum+tcp://xxxxxx:3334 -u xxxx -p xxxx  --gpu-engine 940,940,940,940,940,940 --gpu-memclock 1370,1370,1370,1370,1370,1370 -g 1 -w 256  -I 18 --scan-time 15 --expiry 30
I got stable +1K hash per card when I used two cards.

But three cards changed that story  Embarrassed.
I have no idea why. Even "thread-concurrency 8192 " won't let CGminer start.
sr. member
Activity: 616
Merit: 300
December 19, 2013, 08:40:31 AM
#13
those are rather low specs for 6990, I get 500+ from each gpu on my 6990s,

use msi after burner to undervolt them to 1110, (just change the voltage nothing else) set custom fan speeds of about 85%

try my cgminer settings

GPU_MAX_ALLOC_PERCENT=100
cgminer --scrypt --thread-concurrency 8192 -o stratum+tcp://xxxxxx:3334 -u xxxx -p xxxx  --gpu-engine 940,940,940,940,940,940 --gpu-memclock 1370,1370,1370,1370,1370,1370 -g 1 -w 256  -I 18 --scan-time 15 --expiry 30
full member
Activity: 126
Merit: 100
December 19, 2013, 08:33:17 AM
#12
full member
Activity: 126
Merit: 100
December 18, 2013, 08:55:00 PM
#11
Okay now I lowered my thread concurrency from 8192 to 5000 and intensity from 18 to 16 (these settings ALWAYS worked on 2 cards).

Cgminer is finally working but i'm receiving 50% HW.
full member
Activity: 126
Merit: 100
December 18, 2013, 08:42:25 PM
#10
New update:

3x6990 are detected by Windows
But when I run cgminer I first got a crash (atical.dll)
And when I run it after a reboot, I get the next error;
enqueueing kernel onto command queue. (clenqueuendrangekernel)


I only have intensity 16 set in cgminer bat.
Everything stock.
full member
Activity: 126
Merit: 100
December 18, 2013, 08:11:45 PM
#9
Okay it seems that I need to install CCC or otherwise my VNC screen is black..great.
full member
Activity: 126
Merit: 100
December 18, 2013, 08:02:18 PM
#8
Okay I got it working now after some switching.
However CGminer is bugging now...ill keep trying.
full member
Activity: 235
Merit: 100
December 18, 2013, 07:24:15 PM
#7
If you're using windows 7 you'll only detect 2 cards.. Max for windows 7 is 4 GPU's from what I've heard..  Each card is 2 GPU.  If you want to run all 3 cards you'll need to go to linux or windows 8.  It sucks but it is what it is.
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