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Title: How to down volt 5870s and 7970s? Post by: ragingazn628 on February 28, 2012, 08:37:17 PM I need to down volt my 3 5870s / 1 5970 / 2 7970s in order to decrease the amount of power they're using. They've been tripping my dorm's power and the last 2 days I keep tripping the breaker. How can I decrease the voltages on these cards?
Title: Re: How to down volt 5870s and 7970s? Post by: DeathAndTaxes on February 28, 2012, 09:00:14 PM I need to down volt my 3 5870s / 1 5970 / 2 7970s in order to decrease the amount of power they're using. They've been tripping my dorm's power and the last 2 days I keep tripping the breaker. How can I decrease the voltages on these cards? cgminer (along with everything else you could want or hope for) "gpu-vddc" setting in the config file. Title: Re: How to down volt 5870s and 7970s? Post by: ragingazn628 on February 28, 2012, 09:10:16 PM I need to down volt my 3 5870s / 1 5970 / 2 7970s in order to decrease the amount of power they're using. They've been tripping my dorm's power and the last 2 days I keep tripping the breaker. How can I decrease the voltages on these cards? cgminer (along with everything else you could want or hope for) "gpu-vddc" setting in the config file. What about DiabloMiner? I have to use that for 7970s here are the settings for my bat file: -v 2 -w 256 -g 4 -k phatk -I 1 --gpu-memclock 300 --temp-target 65 --auto-fan --gpu-vddc 1025 Does the bolded part look correct? I think that's 1025mV and not 1025V correct? lol Where do I make the config file and what name should I save it as? Title: Re: How to down volt 5870s and 7970s? Post by: jake262144 on February 28, 2012, 09:40:32 PM Yeah, that parameter list looks good - as long as you want to set 1+210V at the core. I doubt any card will comply, though.
You should really give --gpu-vddc 1.025 a try. BTW, why do you mess with command line arguments instead of gathering them in a single config file, anyway? DiabloMiner doesn't have any voltage control routines coded in so you're going to have to fall back on another utility, like MSI Afterburner or Trixx. Title: Re: How to down volt 5870s and 7970s? Post by: ragingazn628 on February 28, 2012, 10:37:48 PM Yeah, that parameter list looks good - as long as you want to set 1+210V at the core. I doubt any card will comply, though. You should really give --gpu-vddc 1.025 a try. BTW, why do you mess with command line arguments instead of gathering them in a single config file, anyway? DiabloMiner doesn't have any voltage control routines coded in so you're going to have to fall back on another utility, like MSI Afterburner or Trixx. Ok cool I saved it as cgminer.cfg and it worked! Title: Re: How to down volt 5870s and 7970s? Post by: ragingazn628 on February 28, 2012, 10:41:57 PM Ok cool I saved it as cgminer.cfg and it worked!
Does this look correct? "intensity" : "5,5,5,5,5", "vectors" : "2,2,2,2,2", "worksize" : "256,256,256,256,256", "kernel" : "phatk,phatk,phatk,phatk,phatk", "gpu-engine" : "0-800,0-800,0-800,0-775,0-775", "gpu-fan" : "0-85,0-85,0-85,0-85,0-85", "gpu-memclock" : "300,300,300,300,300", "gpu-memdiff" : "0,0,0,0,0", "gpu-powertune" : "0,0,0,0,0", "gpu-vddc" : "1.000,1.000,1.000,1.025,1.025", "temp-cutoff" : "95,95,95,95,95", "temp-overheat" : "85,85,85,85,85", "temp-target" : "65,65,65,65,65", "api-port" : "4028", "auto-fan" : true, "expiry" : "120", "gpu-dyninterval" : "7", "gpu-platform" : "0", "gpu-threads" : "4", "log" : "5", "queue" : "1", "retry-pause" : "5", "scan-time" : "60", "temp-hysteresis" : "3", "shares" : "0", "kernel-path" : "/usr/local/bin" } Also how do I make it so that cgminer will show how much V each card is using like this guy's? Code: cgminer version 2.2.1 - Started: [February 4, 2012, 4:33 pm] Rig: miner9 Title: Re: How to down volt 5870s and 7970s? Post by: DeathAndTaxes on February 28, 2012, 10:56:23 PM Does this look correct? "intensity" : "5,5,5,5,5", "gpu-engine" : "0-800,0-800,0-800,0-775,0-775", "gpu-fan" : "0-85,0-85,0-85,0-85,0-85", "gpu-memclock" : "300,300,300,300,300", "gpu-powertune" : "20,20,20,20,20", "gpu-vddc" : "1.000,1.000,1.000,1.025,1.025", "temp-cutoff" : "95,95,95,95,95", "temp-overheat" : "85,85,85,85,85", "temp-target" : "65,65,65,65,65", "auto-fan" : true, "auto-gpu" : false, "expiry" : "120", "failover-only" : true, "gpu-threads" : "2", "log" : "5", "queue" : "1", "retry-pause" : "5", "scan-time" : "60", "temp-hysteresis" : "3", "worksize" : "0", "shares" : "0", "kernel-path" : "/usr/local/bin" } Looks good except you are missing the opening { also since you don't have pools you will be prompted for them. Quote Also how do I make it so that cgminer will show how much V each card is using like this guy's? That is nonstandard. I imagine he modified it and compiled it himself. You should ask him. Title: Re: How to down volt 5870s and 7970s? Post by: ragingazn628 on February 28, 2012, 11:08:59 PM yup it's working thanks./
how come hwmonitor only show the first card's voltages? I'm assuming all the others are correct because they all have same VID? First card's VIN0 = 1.00V - which is what I set it to be. http://img692.imageshack.us/img692/3888/hwmonitorr.png Title: Re: How to down volt 5870s and 7970s? Post by: ddd1 on February 29, 2012, 10:00:03 PM yup it's working thanks./ how come hwmonitor only show the first card's voltages? I'm assuming all the others are correct because they all have same VID? First card's VIN0 = 1.00V - which is what I set it to be. http://img692.imageshack.us/img692/3888/hwmonitorr.png For me HWinfo shows all card sensors: http://www.hwinfo.com/ Also how much mhash are you getting from youre 7900 cards, youre using the latest diablominer? Title: Re: How to down volt 5870s and 7970s? Post by: JWU42 on March 10, 2012, 01:57:23 AM Anyone successfully downvolt a 7970 using cgminer on a linux box? I can't anything but the standard 1.170V
Title: Re: How to down volt 5870s and 7970s? Post by: johnyj on March 12, 2012, 09:37:27 PM There are only 3 voltage settings corresponding to 3 different states in powerplay, no matter how much I change between those stages, the read out on my power meter stay the same, the voltage only jump between these 3 voltage settings
By running in the middle voltage setting with lowest memory setting and highest default GPU clock setting, the card will run fine and generate much less heat Title: Re: How to down volt 5870s and 7970s? Post by: OgNasty on March 13, 2012, 12:02:41 AM After a few hours of playing with my new 7970 I am shocked at how low you can lower the voltage and still get 650mh/s. Crazy!
Title: Re: How to down volt 5870s and 7970s? Post by: JWU42 on March 13, 2012, 03:29:23 PM How about being less obtuse and providing the data for the rest of us to investigate for ourselves? ;D
Title: Re: How to down volt 5870s and 7970s? Post by: OgNasty on March 13, 2012, 04:05:32 PM "gpu-engine" : "0-800,0-800,0-800,0-775,0-775", Raise those 7970s to 0-1000. They can handle that at vddc 1.000. Title: Re: How to down volt 5870s and 7970s? Post by: chungenhung on March 14, 2012, 05:58:44 PM Win7 x64, 12.2 driver, 2.5SDK, 7970GPU
cgminer 2.3.12 "gpu-memclock" : "300", "gpu-vddc" : "1.000" Opened up GPU-Z 0.59. The memory clock didn't change at all. I've also tried different values. The VDDC also didn't change at all, also tried different values. Any ideas? Also, is SDK2.5 the best for this GPU? Title: Re: How to down volt 5870s and 7970s? Post by: OgNasty on March 14, 2012, 06:04:52 PM I'm using a Diamond 7970 (that I am taking offers in BTC (https://bitcointalk.org/index.php?topic=68444.0) on). Are you guys using the latest beta version of AB?
cgminer isn't adjusting my VVDC levels for the 7970 either. My VVDC levels are also returning to default with each restart. The way I get it to work is to adjust the voltage using the latest AB beta after each restart. It is working and has drastically reduced temps/noise. Title: Re: How to down volt 5870s and 7970s? Post by: DeathAndTaxes on March 14, 2012, 07:26:53 PM I'm using a Diamond 7970 (that I am taking offers in BTC (https://bitcointalk.org/index.php?topic=68444.0) on). Are you guys using the latest beta version of AB? cgminer isn't adjusting my VVDC levels for the 7970 either. My VVDC levels are also returning to default with each restart. The way I get it to work is to adjust the voltage using the latest AB beta after each restart. It is working and has drastically reduced temps/noise. Is it AB beta 14? That is what I'm using, with unlocking code set to 2. Do you see adjusted (in AB) voltage in cgminer? i.e. you restart cgminer, it defaults to 1.17, you change vddc in AB to say 1.15 and you see the change in cgminer? No matter what I do, Can you adjust memory below 685? cgminer doesn't change anything unless you specify a gpu-vddc value. It isn't changing it to 1.17. It IS at 1.17 and cgminer is just properly showing it. Title: Re: How to down volt 5870s and 7970s? Post by: DeathAndTaxes on March 14, 2012, 08:47:03 PM "cgminer doesn't change anything unless you specify a gpu-vddc value. "
From my quote. Don't have multiple utilities modifying voltage at the same time. Use one (and if you feel the need verify with GPU-Z). Having multiple utilities sending requests to the card via different methods causes weird issues. Title: Re: How to down volt 5870s and 7970s? Post by: JWU42 on March 15, 2012, 02:22:59 AM CGMiner will NOT adjust Voltage on my 7970's (linux). Maybe I can try atitweak?
Title: Re: How to down volt 5870s and 7970s? Post by: phorensic on March 17, 2012, 02:24:15 AM cgminer won't adjust the voltage on my 7970 either.
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