Glad to hear that it's normal ... I still want to try putting in a cheap graphics card(6450) as the default, then disable it in CGMiner. I think that will increase the rate on the other cards by 10-15K or so and it shouldn't vary as much.

I have 2 rigs running and the hash rate fluctuates on all 5 cards.

Cards are 7970s and the hash rate keeps changing between ~700Khs to ~712Khs.
If I move the mouse the hash rate on all cards drops down in the 600s and then climbs back up
to the 700 range.

Just wondering if this is normal or if I still need to do a little more tweaking?

Is there a way to move this to the correct board?

Not sure how it got into the alt currencies thread.

Nope, not really. I have 2 rigs running now.

Rig #1:
2 Gigabyte 7970 - both cards are on powered risers running just over 700Khs. The thing I don't like is  they fluctuate between ~698 - ~712 constantly. If I move the mouse the hash rate on both cards drops way down to the 600s and then climbs back to the 700+ range. I'm not using a dummy plug on the second card.

Rig #2:
3 7970s - 2 Gigabyte and 1 XFX. 2 on powered risers. 1 card plugged into the MB. The GB cards run around 710Khs, XFX at 610Khs but all 3 cards fluctuate just like Rig #1. No dummy plugs here either.


Both systems have 16GB ram, one processor is an Athlon and the other a Sempron.

How stable should the hash rate be? Is it normal for the hash rate to jump around constantly? Hard to tell from just screen shots of other systems.

What I plan on trying one of these days is installing a 6450 that I have, setting that to the system card and then disabling it in CGMiner.

I got rid of the beta driver and am currently using the AMD 13.1 driver and CGMiner 3.1 and the SDK is 2.7

I am not using the Crossfire connector.

Anyone know of something besides lm-sensors for Linux?

I can't seem to get any temp or voltage readings from lm-sensors with this motherboard.

I've run through the set-up and it just does not seem to recognize any of the sensors, not even CPU temp.

Anyone else having this problem?

I'm running Ubuntu 12.04.

Yep, it's all in the BIOS. Straight out of the box that motherboard would not even boot from my usb drive or recognize the mouse and keyboard. I think it started to boot from the USB drive then it would hang with no kbd or mouse.

There's at least 2 places in the BIOS that things need to be changed, can't remember offhand exactly what they were. UEFI changed to legacy only. And the hard disk settings too if you are using a SATA drive.

Not sure why I can't go over intensity 13. Maybe I need to try different versions of CGMiner....SDK...CCC etc.

All the hardware is new and I shouldn't be stressing a 1200W PSU with only 2 cards.

The PSU is a NZXT 1200W ... running good so far.

I think I need to boot ubuntu with the minimum XFCE processes and I will be in the 720K+ range.

What do you think of the NZXT PSU? I never heard of them before but it is "Gold Rated" lol.

PSU is 1200W ... plan on adding 2 more cards later, don't think that's the problem.
Power tune does nothing for me and I can't increase Intensity higher than 13 or the hash rate takes a nose dive.

I got it up to 700K avg on both cards. I stopped some background processes that I don't need.

Tried with 1 thread and different concurrency .... average about 500K

In Catalyst Control Center I am set up for single display multi desktop.
When I change that to single display only CGMiner will not see the second card.
I get the error that OpenCL sees more cards.

After 8.5 hours .... averaging ~680K per card.

I will try with only 1 thread and see if that helps.


cgminer version 3.0.1 - Started: [2013-05-06 02:31:50]
--------------------------------------------------------------------------------
 (5s):1.332M (avg):1.363Mh/s | A:18437  R:1260  HW:0  U:36.6/m  WU:1213.7/m
 ST: 2  SS: 0  NB: 213  LW: 3968  GF: 5  RF: 0

 Block: 9e5320ebb74bbad2...  Diff:26M  Started: [10:50:11]  Best share: 1.81M
--------------------------------------------------------------------------------
 [P]ool management [G]PU management ettings [D]isplay options [Q]uit
 GPU 0:  67.0C 3290RPM | 678.3K/683.0Kh/s | A:9188 R:631 HW:0 U:18.26/m I:13
 GPU 1:  62.0C 3352RPM | 670.8K/680.9Kh/s | A:9252 R:629 HW:0 U:18.39/m I:13
--------------------------------------------------------------------------------

 

Something to try:

Reduce the mem clock and then try to find the sweet spot again. Worked for me on my 7970 Gigabyte cards. I couldn't get a Kh rate above 550 at mem clock 1600. I reduced mem clock to 1500 and found the sweet spot with a 1050 eng clock. I'm sitting at 720Kh/s now with 1 card.

Edit: Actually I have 2 7970s cards in the system and can get 720K on the second card when running by itself and 680K from each card when I enable them both. Still trying to figure this one out. I just made a post about it. I have a XFX 7970 that I will be adding to this rig when I get the riser figured out. I'm still a newb at this but from what I've seen so far you might not be able to get the "full" hash rate out of a card that is your primary card in the system. At least that's what I've experienced so far.

INFO:
OP SYS: Xubuntu 12.04
AMD APP SDK 2.8 - same result with 2.7
CGMiner 3.0.1 - same result with 2.11.3
Catalyst: 13.3 Beta - same result with 12.8

GPU 0 is primary display, with monitor attached.
The computer is still very usable, running CGminer now while typing this.
Am I missing something in CCC maybe?

Output GPU 1 only .... 720K ! ... Stable
 GPU 0:  52.0C 3321RPM | OFF   /610.9Kh/s | A:73 R:1 HW:0 U: 18.76/m I:13
 GPU 1:  65.0C 3350RPM | 720.5K/671.5Kh/s | A:71 R:0 HW:0 U: 18.25/m I:13


Output GPU 0 only .... 680K   ... Primary display with monitor.
 GPU 0:  65.0C 3309RPM | 680.9K/588.7Kh/s | A:206 R:2 HW:0 U: 18.91/m I:13
 GPU 1:  30.0C 3358RPM | OFF   /328.6Kh/s | A: 93 R:0 HW:0 U:  8.54/m I:13


Output Both GPUs enabled .... Both hash rates fluctuate from ~660K to ~690K!
 GPU 0:  66.0C 3292RPM | 678.2K/595.2Kh/s | A:232 R:2 HW:0 U: 17.61/m I:13
 GPU 1:  56.0C 3331RPM | 679.6K/300.5Kh/s | A:100 R:0 HW:0 U:  7.59/m I:13
--------------------------------------------------------------------------------

CGMiner settings:
"intensity" : "13,13",
"worksize" : "256,256",
"kernel" : "scrypt,scrypt",
"thread-concurrency" : "8192,8192",
"shaders" : "2048,2048",
"gpu-engine" : "1050,1050",
"gpu-memclock" : "1500,1500",
"gpu-fan" : "0-85",
"gpu-threads" : "2",
"temp-cutoff" : "80,80",
"scrypt" : true,
"kernel-path" : "/usr/local/bin"

ok ... got it ... thx

I'll give that a try later .... but I think I'll lock up with this XFX card.

So if I submit a share with diff 1/1 compared to diff 5/1 and it takes me longer to solve the diff 5/1 is the payout proportional?

seljo ... what clocks are u using?

My max mem clock is 1700 which i leave at for both LTC and BTC, and my engine clock is at 1100.

Yeah, I lock up too when lowering mem clock.

Got to 540K on LTC with these settings.

"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "0",
"thread-concurrency" : "22272",
"shaders" : "2048",
"gpu-engine" : "1100",
"gpu-fan" : "0-85",
"gpu-memclock" : "1700",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "75",
"temp-overheat" : "70",
"temp-target" : "65",
"api-port" : "4028",
"auto-fan" : true,
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"

640Mh/s with these settings:

"intensity" : "9",
"vectors" : "1",
"worksize" : "256",
"kernel" : "poclbm",
"lookup-gap" : "0",
"thread-concurrency" : "22272",
"shaders" : "2048",
"gpu-engine" : "1100",
"gpu-fan" : "0-85",
"gpu-memclock" : "1700",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "80",
"temp-overheat" : "75",
"temp-target" : "65",
"api-port" : "4028",
"auto-fan" : true,
"expiry" : "120",
"gpu-dyninterval" : "8",
"gpu-platform" : "0",
"gpu-threads" : "2",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"


I had it up to 660M steady, but forgot to save the settings.

7970 XFX DD

Max I can get for BTC: 660Mh/s, sure wish I could get em over 700.

The bad part is max on LTC is 525kH/s .... I must be doing something wrong here.

The card is really unstable when changing the intensity above 13 for BTC, I can get it to spike up into the 800s for a split second, then is drops back down, not sure if this is only for the XFX cards or the 7970s in general.....