jamesg (OP)
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Activity: 1358
Merit: 1000
AKA: gigavps
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February 24, 2012, 04:38:09 AM |
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Hello fellow bitcoiners, I would like to compile a complete list of undervolting results the community has been able to figure out. I am particularly interested in 5970s, 5870s, 5850s, 5830s and 6950s. It would be great if they were posted in the format below. I'll go first with the results of my 5970 undervolting. Miner: cgminer OC software: cgminer Card: 5970 Core: 680 Memory: 166 Voltage: 0.95 Mh/s: 630 Wattage: ? Hopefully we can compile a complete list here so that others can easily find and utilize this information. Thanks, gigavps
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cmg5461
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February 24, 2012, 05:39:35 AM |
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Miner: pheonix OC software: bamt Card: 5970 Core: 775 Memory: 300 Voltage: 1.02 Mh/s: 704
Miner: pheonix OC software: bamt Card: 5850 Core: 775 Memory: 300 Voltage: 1.02 Mh/s: 341
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If I've helped: 1CmguJhwW4sbtSMFsyaafikJ8jhYS61quz
Sold: 5850 to lepenguin. Quick, easy and trustworthy.
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diabinc141
Newbie
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Activity: 14
Merit: 0
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February 25, 2012, 07:51:05 AM |
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Miner: guiminer OC software: msi afterburner Card: 5870 Core: 800 Memory: 300 Voltage: 1.05 Mh/s: 356
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spiccioli
Legendary
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Activity: 1378
Merit: 1003
nec sine labore
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February 25, 2012, 08:51:48 AM |
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Hi gigavps,
Miner: cgminer 2.3.1-2 OC software: cgminer Card: 2x 5870 Core: 700 Memory: 150 Voltage: 0.95 Mh/s: 610 (sum of both cards) Wattage: 230-245 at the plug, including 85W for system at idle, so around 77w per card.
spiccioli
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malevolent
can into space
Legendary
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Activity: 3472
Merit: 1722
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February 25, 2012, 12:43:57 PM |
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ATM I ran all my 5830s, 5850s and 5870s @ stock voltage but I have to undervolt one card, a HD 6770 because it's placed in a very uncomfortable place with almost no air to inhaust Miner: guiminer (phoenix with modified phatk for 2.6 sdk) OC software: barelyclocked Card: HD 6770 Core: 775 (stock) Memory: 180 (stock was 1000) Voltage: 0.8V (stock was 1.125V) MH/s: 170 Wattage:
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Signature space available for rent.
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TheHarbinger
Sr. Member
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Activity: 378
Merit: 250
Why is it so damn hot in here?
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February 25, 2012, 03:45:15 PM Last edit: February 25, 2012, 04:43:17 PM by TheHarbinger |
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Miner : BAMT 0.4/cgminer OC software : cgminer Card : 5 x 5870 Core : 950 Memory : 150 Voltage : 1.100 MH/s : 2200
Full system wattage : 940W (from kill-a-watt)
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12Um6jfDE7q6crm1s6tSksMvda8s1hZ3Vj
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S. Omega
Newbie
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Activity: 38
Merit: 0
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February 25, 2012, 04:34:59 PM |
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Per card:
Miner: CGMiner OC software: MSI Afterburner 2.2.0 Beta 10 Card: 6950 (shaders unlocked) Core: 840 Memory: 720 Voltage: 1.00 Mh/s: 380
Miner: CGMiner OC software: MSI Afterburner 2.2.0 Beta 10 Card: 5870 Core: 900 Memory: 600 Voltage: 1.087 Mh/s: 405
Miner: CGMiner OC software: MSI Afterburner 2.2.0 Beta 10 Card: 6990 Core: 840 Memory: 720 Voltage: 1.00 Mh/s: 760
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MrTeal
Legendary
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Activity: 1274
Merit: 1004
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February 26, 2012, 04:09:39 AM |
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Miner: Phoenix OC software: MSI Afterburner 2.2.0 Card: 6870 Core: 1000 Memory: 900 Voltage: 1.168 Mh/s: 320
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BCMan
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February 26, 2012, 05:55:06 AM |
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Miner: Phoenix OC software: ATI Tray Tools Card: 6870 Core: 1000 Memory: 300 Voltage: 1.051 Mh/s: 323.5
Miner: Phoenix OC software: CGMiner Card: 5770 Core: 960 Memory: 244 Voltage: 1.001 Mh/s: 222
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MrTeal
Legendary
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Activity: 1274
Merit: 1004
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February 26, 2012, 05:50:06 PM |
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Miner: Phoenix OC software: ATI Tray Tools Card: 6870 Core: 1000 Memory: 300 Voltage: 1.051 Mh/s: 323.5
Are you running that 6870 on a headless miner, BCMan? I've tried everything from Afterburner to Clocktweak to get my memory down to 300MHz, but my driver crashes if I try to go lower than 900MHz.
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BCMan
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February 26, 2012, 06:47:39 PM |
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Miner: Phoenix OC software: ATI Tray Tools Card: 6870 Core: 1000 Memory: 300 Voltage: 1.051 Mh/s: 323.5
Are you running that 6870 on a headless miner, BCMan? I've tried everything from Afterburner to Clocktweak to get my memory down to 300MHz, but my driver crashes if I try to go lower than 900MHz. No. I'm setting clocks manually with ATT preset on each reboot. No problems whatsoever. Use 12.1 drivers with Win7x64.
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sunbreak
Member
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Activity: 107
Merit: 30
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March 09, 2012, 01:21:05 AM Last edit: March 09, 2012, 01:39:03 AM by sunbreak |
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Miner: cgminer OC software: bios flash Card: 6950 Core: 600,600,600,600 Memory: 150 Voltage: 0.900 Mh/s: 1032 Watts: 368 watts (kill-a-watt) W/Mhash: 0.3565
Miner: cgminer OC software: bios flash Card: 6950 Core: 820,820,850,830 Memory: 150 Voltage: 1.00 Mh/s: 1457 Watts: 553 watts (kill-a-watt) W/Mhash: 0.3795
Miner: cgminer OC software: bios flash Card: 6950 Core: 860,860,860,860 Memory: 150 Voltage: 1.05 Mh/s: 1471 Watts: 626 watts (kill-a-watt) W/Mhash: 0.4255
Miner: cgminer OC software: bios flash Card: 6990 Core: 920,920,920,900 Memory: 150 Voltage: 1.12 Mh/s: 1640.7 Watts: 767 watts (kill-a-watt) W/Mhash: 0.4676
Miner: cgminer OC software: bios flash Card: 39x6950, 41x6950 unlocked (4 gpu's per machine, 20 machines) Core: 790-900 (varies) Memory: 150 Voltage: 1.00 Mh/s: 28528 Watts: 10767 watts @ 279 volts (fluke t5-1000) during the day at 62F W/Mhash: 0.3774 Watts: 10280 watts @ 279 volts (fluke t5-1000) during the night at 38F (not from fans, but from lower resistance) W/Mhash: 0.3603
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DeathAndTaxes
Donator
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Activity: 1218
Merit: 1079
Gerald Davis
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March 09, 2012, 02:41:04 AM |
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279 volts? What country uses 279 volt mains?
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rjk
Sr. Member
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Activity: 448
Merit: 250
1ngldh
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March 09, 2012, 04:16:36 AM |
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279 volts? What country uses 279 volt mains?
Odd, might be a single leg of 480 phase-to-ground (277 +2 variance), but I don't know of any PSUs rated that high.
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malevolent
can into space
Legendary
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Activity: 3472
Merit: 1722
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March 09, 2012, 06:54:27 AM |
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279 volts? What country uses 279 volt mains?
Odd, might be a single leg of 480 phase-to-ground (277 +2 variance), but I don't know of any PSUs rated that high. I think he's using as separate transformer..but let's wait for his resposnse
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Signature space available for rent.
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420
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July 25, 2012, 01:35:18 AM Last edit: July 25, 2012, 02:34:06 AM by 420 |
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I copied the first, 680 core, .95v 166 memory but i have 3 cards back to back, they're getting over 85C easy (on air) anyone know how much underclock I can get to keep the temperatures down? EDIT: oops, I was wrong and they were all still stock, i put separators to hold the cards apart and they are able to cool better when I remove the '#' in front of the designations to change clock or voltage i get an error and the mining won't run...
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Donations: 1JVhKjUKSjBd7fPXQJsBs5P3Yphk38AqPr - TIPS the hacks, the hacks, secure your bits!
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MXRider
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July 25, 2012, 05:27:30 PM |
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I copied the first, 680 core, .95v 166 memory but i have 3 cards back to back, they're getting over 85C easy (on air) anyone know how much underclock I can get to keep the temperatures down? EDIT: oops, I was wrong and they were all still stock, i put separators to hold the cards apart and they are able to cool better when I remove the '#' in front of the designations to change clock or voltage i get an error and the mining won't run... Use Afterburner and PCIE-risers. Those two will solve all your problems.
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420
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August 01, 2012, 05:38:23 AM |
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I copied the first, 680 core, .95v 166 memory but i have 3 cards back to back, they're getting over 85C easy (on air) anyone know how much underclock I can get to keep the temperatures down? EDIT: oops, I was wrong and they were all still stock, i put separators to hold the cards apart and they are able to cool better when I remove the '#' in front of the designations to change clock or voltage i get an error and the mining won't run... Use Afterburner and PCIE-risers. Those two will solve all your problems. Currently using BAMT. i tried to mine under xp x64 and no program would utilize all my cores currently underclocked, had problems not sure if cards, board, PSU or software...
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Donations: 1JVhKjUKSjBd7fPXQJsBs5P3Yphk38AqPr - TIPS the hacks, the hacks, secure your bits!
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420
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August 04, 2012, 06:05:55 AM |
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Miner: cgminer OC software: cgminer Card: 5970 Core: 805 Memory: 300 Voltage: 1.012 Mh/s: 747 Wattage: 185
Miner: cgminer OC software: cgminer Card: 5970 Core: 850 Memory: 300 Voltage: 1.050 Mh/s: 790 Wattage: 225
what settings to get those hashrates? I'm at 795mhz on 3 5970's and getting 717.6.mhash average 256 worksize, -v2 intensity 9, CGMINER 2.1.3 or 2.6
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Donations: 1JVhKjUKSjBd7fPXQJsBs5P3Yphk38AqPr - TIPS the hacks, the hacks, secure your bits!
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