jjiimm_64
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Activity: 1876
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February 02, 2012, 08:46:32 PM |
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I can't even get one rig stable with three 5970's and 2 seasonic gold 750watt joined with a lian li connector Worse case scenario ... ebay the 2x 750 (or try these forums) and buy a single 1200W. 1000W is all you need but 1200W gives you the option to expand to 4x5970s. a silverstone 1200 will NOT run 4 5970's overclocked to 820. a seasonic 1250 will Dat: in reference to the 10 gpus it has 2 mobos and 2 operating systems.. . I read somewhere that solaris will load Xnumber of gpus? my new rig(or is it 2 rigs joined by a common psu) I will be easily able to do this..
it is 10x7970 3psu's 6790 Mh. I will calculate the watts tonight.
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1jimbitm6hAKTjKX4qurCNQubbnk2YsFw
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jjiimm_64
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Activity: 1876
Merit: 1000
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February 02, 2012, 08:51:22 PM |
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edit: my new rig(or is it 2 rigs joined by a common psu) I will be easily able to do this..
it is 10x7970 3psu's 6790 Mh. I will calculate the watts tonight.
Sounds like 1 PSU per mobo and a third for some of the cards. Good idea actually. IT IS: power 220V Psu's 3 seasonic 2x1250 1x650 mobos 2 7970 10 (5 each mobo)
the 1250's are powering 4x7970 + mobo + hd the 650 is powering 1 7970 on each mobo
#1 clocks 1143 volts 1162/685 core/mem #2 clocks 1125 volts 1125/685 core/mem
Mhash #1 3453 Mhash #2 3340
total 6790+
uptime, 170k accepted shares..
The rig(s) are still up and stable, albiet running a little warm for my tastes (high 70's)
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1jimbitm6hAKTjKX4qurCNQubbnk2YsFw
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bulanula
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February 02, 2012, 08:51:36 PM |
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I can't even get one rig stable with three 5970's and 2 seasonic gold 750watt joined with a lian li connector Worse case scenario ... ebay the 2x 750 (or try these forums) and buy a single 1200W. 1000W is all you need but 1200W gives you the option to expand to 4x5970s. a silverstone 1200 will NOT run 4 5970's overclocked to 820. a seasonic 1250 will Dat: in reference to the 10 gpus it has 2 mobos and 2 operating systems.. . I read somewhere that solaris will load Xnumber of gpus? my new rig(or is it 2 rigs joined by a common psu) I will be easily able to do this..
it is 10x7970 3psu's 6790 Mh. I will calculate the watts tonight.
Care to share with us that magic solaris or whatever it is called server that does 10 GPUs in one mobo ? Pics would be nice Thanks !
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rjk
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1ngldh
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February 02, 2012, 08:53:02 PM |
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Care to share with us that magic solaris or whatever it is called server that does 10 GPUs in one mobo ? Pics would be nice Thanks ! There are 2 mobos, not 1....
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singular
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February 02, 2012, 09:08:04 PM |
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jjiimm can you post core voltages at which you got these frequencies of your cards? And what do you mean by high 70's? 78?
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jjiimm_64
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February 02, 2012, 09:44:49 PM |
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jjiimm can you post core voltages at which you got these frequencies of your cards? And what do you mean by high 70's? 78? The volts are listed with the clocks.. 1.143 and 1.125 Please do not take my volts as the 'optimum' I do not follow a very scientific approach to arrive at these numbers..
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1jimbitm6hAKTjKX4qurCNQubbnk2YsFw
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singular
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February 02, 2012, 10:18:05 PM |
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jjiimm can you post core voltages at which you got these frequencies of your cards? And what do you mean by high 70's? 78? The volts are listed with the clocks.. 1.143 and 1.125 Please do not take my volts as the 'optimum' I do not follow a very scientific approach to arrive at these numbers.. Ah lol somehow i didnt see the voltages Well if its stable then its good enough will try em out, what brand 7970 u got? edit: Do you use pci-e extenders? With or without molexes? Im asking cuz im waiting for extenders to setup 4x 7970 rigs, but i bought ones without molexes so i wonder if im gonna have to put them there myself..
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jjiimm_64
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February 02, 2012, 10:43:56 PM |
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jjiimm can you post core voltages at which you got these frequencies of your cards? And what do you mean by high 70's? 78? The volts are listed with the clocks.. 1.143 and 1.125 Please do not take my volts as the 'optimum' I do not follow a very scientific approach to arrive at these numbers.. Ah lol somehow i didnt see the voltages Well if its stable then its good enough will try em out, what brand 7970 u got? edit: Do you use pci-e extenders? With or without molexes? Im asking cuz im waiting for extenders to setup 4x 7970 rigs, but i bought ones without molexes so i wonder if im gonna have to put them there myself.. I have never used powered ext. i do not think we need them anymore... maybe with the older mobos?, I always use extenders for cooling.
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singular
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February 02, 2012, 11:06:10 PM |
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Ok then its all fine if you can run 5x7970 on extenders without molexes then i can do 4 with np I have asus sabertooth 990fx mobos with four pcie 16 slots, i guess it will work, if not i report here something got fried I tried your volt/freq but for me it crashes, what manufacturer is your 7970, Sapphire (i got sapphires..) or something else ?
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jjiimm_64
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February 03, 2012, 12:53:40 AM Last edit: February 03, 2012, 02:59:55 AM by jjiimm_64 |
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Ok then its all fine if you can run 5x7970 on extenders without molexes then i can do 4 with np I have asus sabertooth 990fx mobos with four pcie 16 slots, i guess it will work, if not i report here something got fried I tried your volt/freq but for me it crashes, what manufacturer is your 7970, Sapphire (i got sapphires..) or something else ? xfx will do pics we should move this to the 7970 thread, this is for Mh/J http://imageshack.us/g/832/img0536sx.jpg/PSU?
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pazor
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February 03, 2012, 01:01:49 AM |
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5x 5850
2,06 MH/s / Watt -> 371MH/s @ 180Watt
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treuhand-Dienst gewünscht? - frag per PM an BTC 174X17nR7vEQBQo4GXKRGMGaTmB49Gf1yT
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singular
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February 03, 2012, 09:38:48 AM |
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I will be using enermax platimax 1500W, i think 1 could take 5 cards, but for now it will be 4 per rig because i didnt order pcie 1x to 16x extenders..
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bob
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February 04, 2012, 09:10:35 PM |
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Did you take power factor into account when you measured volts and amps separately? I'm running at PF about .9 so maybe that caused the difference if you measured different ways for 120 vs 240.
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bob
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February 04, 2012, 09:15:32 PM |
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830 MH/s / 520 W = 1.6 MH/J
3x5830, 80+ PSU, 120V
measured with kill-a-watt
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h4gb4s3
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February 05, 2012, 03:45:31 PM |
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720 MH/s @ 335W ~ 2,15 MH/J measured with Voltcraft Energy Check 3000 Setup: MSI GD70 AMD X2 250 2 GB Corsair XMS 1333 MHz 250 GB Western Digital 2,5" HDD HD 5850 rev 2 @ 850/150/1.088V HD 5850 rev 1 @ 850/150/1.088V PSU: Cougar S700 (230V EU/Germany) Cooling/Case: modified Cooler Master CM690 rev 1 1x Scythe Big Shuriken (passive) 2x Arctic Accelero S1 Plus 2x Noctua NF-S12B FLX 1x Noctua NF-P14 FLX 1x Noctua NF-P12-1300 2x Cooler Master 120 mm temperature GPU: 55 / 42 C° temperature System/CPU: ~ 32 C° CPU undervolting/clocking: no disabled onboard devices: Audio / Serial Port GPU overclocking: 765->850 / 725-> 850 GPU over/undervolting: no CPU Load: ~ 0-9% GPU Load: 99% Miner Software: cgminer 2.2.1 Driver / APP SDK: 11.12 / 2.5 OS: Windows 7 x86_64 Ultimate Power Draw start up : ~ 380W Power Draw boot : ~ 180W Power Draw idle: ~ 130W Power Draw mining: 335W
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coretechs
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February 05, 2012, 08:40:01 PM |
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I just spent some time optimizing one of my rigs - 890FXA-GD70 Sempron @ 1600mhz Cooler Master 1000w 80+Gold All mobo options disabled, USB drive/linuxcoin 3x 5970 + 1x 5870, undervolting & underclocking all the cards 2317Mh/s @ 880w - 2.63Mh/J (measured with kill-a-watt)
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JWU42
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February 07, 2012, 10:56:18 PM |
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Could optimize it a bit but for now it is...
"Kong" Running BAMT
2x750 Seasonic Gold w/ Add2PSU Asrock 970 Extreme4 Sempron 145 1 x 2GB DIMM 4GB USB Key 2 x 5970 (800/300) 2 x 5870 (970/300) 1 x 5770 (945/300) 2 x 120x38mm Delta Screaming Fans
2,580 MH/s - 1060W = 2.43Mh/W
If I remove the fans I get almost to my target of 2.5Mh/W. I am sure I could look at under volting and cranking back to further improve efficiency Mh/J as well. A project for the weekend.
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SlaveInDebt
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February 09, 2012, 02:33:05 PM Last edit: February 09, 2012, 02:47:37 PM by SlaveInDebt |
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PC Power Cooler 950w 87% efficiency Asus P7P55 WS i5 670 @ 1.6ghz 0.9v 2gb @ 1.5v WD Blue HDD Win7 x64 CGMiner/Phatk 11.12 divers w/2.5sdk swap 3x5970's @ 815/300 1.05v 1x5850 @ 725/300 0.95v 2515mh/s 970w 2.59mh/w Still tweaking just got on board with CGminer, next Linux USB drive, more cpu/gpu tweaking, and 240v. Anyone know where to buy 250 VOLT NEMA 6-20R POWER STRIP? http://www.internationalconfig.com/icc6.asp?item=61820That doesn't cost $300? Looking at you DAT.
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"A banker is a fellow who lends you his umbrella when the sun is shining, but wants it back the minute it begins to rain." - Mark Twain
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jjiimm_64
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Activity: 1876
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February 09, 2012, 03:36:51 PM |
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What I did was just wire a regular 20amp plug with 2 hots and a ground.
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1jimbitm6hAKTjKX4qurCNQubbnk2YsFw
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SlaveInDebt
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February 09, 2012, 03:44:37 PM |
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Thanks jimm was thinking the same but what about surge protection?
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"A banker is a fellow who lends you his umbrella when the sun is shining, but wants it back the minute it begins to rain." - Mark Twain
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