7950 settings | Bitcointalksearch.org

Benson Samuel

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Quote from: P1tBull on December 18, 2013, 01:11:16 PM

I started with thread concurrency 8192 and intensity 13, and bumped up both the values bit by bit.
The cards would typically give you ~300 KHS at that setting, but which I will probably use in summer.
7950s work best on 21712 or 24000 thread concurrency.
Also the cards are sitting on risers in the open with 2 case fans blowing on them which drops temperatures quite a bit.
Right now , the rig runs at about 75C - 77C with fans at 50%.
Its still a work in progress though.

Very nice.. Will try the same settings with a similar rig that I had helped setup.

P1tBull

newbie

Activity: 40

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I started with thread concurrency 8192 and intensity 13, and bumped up both the values bit by bit.
The cards would typically give you ~300 KHS at that setting, but which I will probably use in summer.
7950s work best on 21712 or 24000 thread concurrency.
Also the cards are sitting on risers in the open with 2 case fans blowing on them which drops temperatures quite a bit.
Right now , the rig runs at about 75C - 77C with fans at 50%.
Its still a work in progress though.

Benson Samuel

legendary

Activity: 1890

Merit: 1000

Landscaping Bitcoin for India!

have you tried 8192 for thread concurrency and 13 on intensity? That should avoid overheat, but may reduce speed.

P1tBull

newbie

Activity: 40

Merit: 0

My config file settings are below:
I had to play around with the voltages a bit and also the Flex had its voltage locked, so had to edit the bios on that card.
I am still figuring it all out though. I got the first card about 3 weeks ago, and the full rig has only been up for a few days now.

{
"pools" : [
   {
      "url" : "stratum+tcp://yourpool",
      "user" : "x",
      "pass" : "x"
   }

]
,
"intensity" : "20,20,20",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "2,2,2",
"thread-concurrency" : "24000,24000,24000",
"shaders" : "1792,1792,1792",
"gpu-engine" : "1000,1000,1000",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "1425,1425,1425",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "1.050,1.050,1.050",
"temp-cutoff" : "90,90,90",
"temp-overheat" : "82,82,82",
"temp-target" : "78,78,78",
"api-mcast-port" : "4028",
"api-port" : "4028",
"auto-fan" : true,
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"no-submit-stale" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

Benson Samuel

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Activity: 1890

Merit: 1000

Landscaping Bitcoin for India!

Quote from: P1tBull on December 18, 2013, 06:58:52 AM

Could you guys put in your miner configs?
I am running a 3x7950 (2 Sapphire Vapor-X OC, 1 Dual X Flex OC ), all undervolted, and I get about 620 KHS off each card.
I have gone up to 680 KHS, but then power and temperatures go overboard.

That is an impressive output per card.
Can you post your settings pls?

Also, do try to open out the rig and point a fan to circulate air. This drops the temp by quite a bit.

thenoblebot

sr. member

Activity: 364

Merit: 252

Quote from: P1tBull on December 18, 2013, 06:58:52 AM

Could you guys put in your miner configs?
I am running a 3x7950 (2 Sapphire Vapor-X OC, 1 Dual X Flex OC ), all undervolted, and I get about 620 KHS off each card.
I have gone up to 680 KHS, but then power and temperatures go overboard.

Wow thats impressive ... upto 680 I did not imagine I could have got ... anyways I have given up mining as of now .. but I was using guiminer inbuilt settings and was getting 20% less than the hardware comparison page :-(

Just out of curiosity what were your settings ? maybe it will help someone else here

P1tBull

newbie

Activity: 40

Merit: 0

Could you guys put in your miner configs?
I am running a 3x7950 (2 Sapphire Vapor-X OC, 1 Dual X Flex OC ), all undervolted, and I get about 620 KHS off each card.
I have gone up to 680 KHS, but then power and temperatures go overboard.

Benson Samuel

legendary

Activity: 1890

Merit: 1000

Landscaping Bitcoin for India!

Quote from: thenoblebot on December 17, 2013, 04:10:51 PM

Quote from: Benson Samuel on December 17, 2013, 02:08:29 PM

Quote from: thenoblebot on December 17, 2013, 01:57:58 PM

Quote from: techguy on December 17, 2013, 01:05:00 PM

On trial and error basis try these settings (under 7950 series) - https://litecoin.info/Mining_hardware_comparison . Find the one which best suites your card(s).

Yep already trying that ... but was wondering if someone is really able to get the juice out of them ... why reinvent the wheel Tongue

(not to say I'm not trying).

BTW mine is a 7950 dual x.

yeah, would help if there was a solid set of params for 7970 and 7950's

Am running two rigs with 2 cards each and each one is outputting almost 400 khash/s lesser than what it should be cos it takes way too much time to troubleshoot.

Did you mistype it as 400 khps ? It seems awfully low (Im getting 550 without much tweaking)... I would suggest you try guiminer with the default settings for heavy usage if thats the case. Hopefully this should help others in the community too.

Cheers

About 200khash lesser for each rig, but it is stable and not much heating.

techguy

sr. member

Activity: 378

Merit: 250

Quote from: thenoblebot on December 17, 2013, 04:10:51 PM

Quote from: Benson Samuel on December 17, 2013, 02:08:29 PM

Quote from: thenoblebot on December 17, 2013, 01:57:58 PM

Quote from: techguy on December 17, 2013, 01:05:00 PM

On trial and error basis try these settings (under 7950 series) - https://litecoin.info/Mining_hardware_comparison . Find the one which best suites your card(s).

Yep already trying that ... but was wondering if someone is really able to get the juice out of them ... why reinvent the wheel Tongue

(not to say I'm not trying).

BTW mine is a 7950 dual x.

yeah, would help if there was a solid set of params for 7970 and 7950's

Am running two rigs with 2 cards each and each one is outputting almost 400 khash/s lesser than what it should be cos it takes way too much time to troubleshoot.

Did you mistype it as 400 khps ? It seems awfully low (Im getting 550 without much tweaking)... I would suggest you try guiminer with the default settings for heavy usage if thats the case. Hopefully this should help others in the community too.

Cheers

It takes time to find the best settings for your model. In somecases you will get good performance when you use each card separately, the performance may drop significantly when you use both cards at the sametime.

thenoblebot

sr. member

Activity: 364

Merit: 252

Quote from: Benson Samuel on December 17, 2013, 02:08:29 PM

Quote from: thenoblebot on December 17, 2013, 01:57:58 PM

Quote from: techguy on December 17, 2013, 01:05:00 PM

On trial and error basis try these settings (under 7950 series) - https://litecoin.info/Mining_hardware_comparison . Find the one which best suites your card(s).

Yep already trying that ... but was wondering if someone is really able to get the juice out of them ... why reinvent the wheel Tongue

(not to say I'm not trying).

BTW mine is a 7950 dual x.

yeah, would help if there was a solid set of params for 7970 and 7950's

Am running two rigs with 2 cards each and each one is outputting almost 400 khash/s lesser than what it should be cos it takes way too much time to troubleshoot.

Did you mistype it as 400 khps ? It seems awfully low (Im getting 550 without much tweaking)... I would suggest you try guiminer with the default settings for heavy usage if thats the case. Hopefully this should help others in the community too.

Cheers

Benson Samuel

legendary

Activity: 1890

Merit: 1000

Landscaping Bitcoin for India!

Quote from: thenoblebot on December 17, 2013, 01:57:58 PM

Quote from: techguy on December 17, 2013, 01:05:00 PM

On trial and error basis try these settings (under 7950 series) - https://litecoin.info/Mining_hardware_comparison . Find the one which best suites your card(s).

Yep already trying that ... but was wondering if someone is really able to get the juice out of them ... why reinvent the wheel Tongue

(not to say I'm not trying).

BTW mine is a 7950 dual x.

yeah, would help if there was a solid set of params for 7970 and 7950's

Am running two rigs with 2 cards each and each one is outputting almost 400 khash/s lesser than what it should be cos it takes way too much time to troubleshoot.

thenoblebot

sr. member

Activity: 364

Merit: 252

Quote from: techguy on December 17, 2013, 01:05:00 PM

On trial and error basis try these settings (under 7950 series) - https://litecoin.info/Mining_hardware_comparison . Find the one which best suites your card(s).

Yep already trying that ... but was wondering if someone is really able to get the juice out of them ... why reinvent the wheel Tongue

(not to say I'm not trying).

BTW mine is a 7950 dual x.

techguy

sr. member

Activity: 378

Merit: 250

On trial and error basis try these settings (under 7950 series) - https://litecoin.info/Mining_hardware_comparison . Find the one which best suites your card(s).

thenoblebot

sr. member

Activity: 364

Merit: 252

Hey,

Actually a bit new to this and I am using guiminer with my 7950.

I am using the default setting - 7950 (high usage) .... however I am getting about 550 khps.

Does anyone know better settings in "guiminer" (possibly with the extra flags) ? Or are those default settings the best ?

Topic: 7950 settings (Read 1116 times)