johnyj
Legendary
 Offline
Activity: 1988
Merit: 1012
Beyond Imagination
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February 28, 2012, 02:43:42 PM |
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Now I have fixed a problematic pci-e extender, my 5970 can run 800/300 at stock V under 55c (open case temp 5c) for 40% fan, but I only push it to 97%-98%
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minero1
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March 24, 2012, 04:54:41 PM |
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5970s undervolted mostly because of fear of overheating or sudden death
core: 750Mhz
mem: 250Mhz
Vddc: 1.000V
Temp: 66ºC
Hashrate: 690MH/s
i have one that won't mine at 750 core so i leave it at 725, the rest is the same , oh the hashrate drops to 666MH/s
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DeathAndTaxes
Donator
Legendary
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Activity: 1218
Merit: 1079
Gerald Davis
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March 24, 2012, 04:57:46 PM |
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I have been running some of my rigs @ 1.00V. Nice drop in power consumption. As FPGA miners start making the price/difficulty ratio to fall (network gets more efficient) I think the 5970s are a great card because you can keep dropping voltage (and clocks) to boost efficiency and expand their longevity. The bad news is that you make less gross hashes the good news is that you can keep mining even with really old hardware.  |
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minero1
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March 24, 2012, 05:06:01 PM |
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I have been running some of my rigs @ 1.00V. Nice drop in power consumption. As FPGA miners start making the price/difficulty ratio to fall (network gets more efficient) I think the 5970s are a great card because you can keep dropping voltage (and clocks) to boost efficiency and expand their longevity. The bad news is that you make less gross hashes the good news is that you can keep mining even with really old hardware. man i never thought about that before, what is the lowest (highest?) undervolt you have achieved? and at what clocks? |
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zvs
Legendary
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Activity: 1680
Merit: 1000
https://web.archive.org/web/*/nogleg.com
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March 24, 2012, 06:59:24 PM |
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between 800/193 and 850/193, stock voltage, in water cooled system, temps always under 50oC, in other one, highest I've seen is 72oC, fan maxes out at 75oC, hasnt gotten that high yet. avg fan speed probably around 50%
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italeffect
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March 25, 2012, 06:03:50 AM |
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I have 2 running 690/166 at 0.95v ~315 mh/s 64C with fans at 36%
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Dash: Xdopotr3eAHpsSCMkUyU2YWP3WQWb5X3t8
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Red Emerald
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March 25, 2012, 07:37:07 AM |
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My 5970 that has been running since June: 68.5C / 65.0C, 100% Fan, 830 / 280 and 825 / 280 at 1.05 volts.
My 5970 that has been running since this January: 54.5C / 51.0C, 90% Fan, 810 / 280 and 830 / 280 at 1.05 volts.
I want to get cgminer running with autofan and autogpu again, but phoenix was easier with BAMT.
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minero1
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March 26, 2012, 12:39:46 AM |
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My 5970 that has been running since June: 68.5C / 65.0C, 100% Fan, 830 / 280 and 825 / 280 at 1.05 volts.
My 5970 that has been running since this January: 54.5C / 51.0C, 90% Fan, 810 / 280 and 830 / 280 at 1.05 volts.
I want to get cgminer running with autofan and autogpu again, but phoenix was easier with BAMT.
man, don't be so lazy you just need to type 4 lines in BAMT.conf |
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Red Emerald
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March 26, 2012, 02:01:49 AM |
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My 5970 that has been running since June: 68.5C / 65.0C, 100% Fan, 830 / 280 and 825 / 280 at 1.05 volts.
My 5970 that has been running since this January: 54.5C / 51.0C, 90% Fan, 810 / 280 and 830 / 280 at 1.05 volts.
I want to get cgminer running with autofan and autogpu again, but phoenix was easier with BAMT.
man, don't be so lazy you just need to type 4 lines in BAMT.conf It's more than that. When I setup cgminer, the rig was really unstable. Even with stock clocks. Better to just use phoenix and have no more downtime, |
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minero1
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March 26, 2012, 02:21:22 AM |
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My 5970 that has been running since June: 68.5C / 65.0C, 100% Fan, 830 / 280 and 825 / 280 at 1.05 volts.
My 5970 that has been running since this January: 54.5C / 51.0C, 90% Fan, 810 / 280 and 830 / 280 at 1.05 volts.
I want to get cgminer running with autofan and autogpu again, but phoenix was easier with BAMT.
man, don't be so lazy you just need to type 4 lines in BAMT.conf It's more than that. When I setup cgminer, the rig was really unstable. Even with stock clocks. Better to just use phoenix and have no more downtime, that's odd, my experience is the opposite. Phoenix was utter crap for me giving me like 30% rejects, when i started using cgminer it all became stable With BAMT that is. |
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johnyj
Legendary
Offline
Activity: 1988
Merit: 1012
Beyond Imagination
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March 27, 2012, 10:30:34 AM |
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Linuxcoin always worked better for me than BAMT
Now my 5970 stay at 770/150/1.0 stable with 42% fan and 60C at outdoor temp 10C
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JWU42
Legendary
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Activity: 1666
Merit: 1000
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March 29, 2012, 02:34:07 PM |
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Daytime (windows open)...
810/180 @ 1.05v = 370 Mh/s
Nightime (windows closed)
755/180 @ .99v = 342 Mh/s
Try to keep temps under 70c and fans below 65%...
Already replaced the fans and reapplied TP on 2 of the 3 cards...
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