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Author Topic: A D&T Public Service Announcement: All Seasonic PSU 15% off at Newegg Until 2/8  (Read 2415 times)
grue
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February 04, 2012, 03:22:53 AM
 #21

I must be doing something wrong...I've got 2x5970's and one 5870 all @300mem and 835/950 respectively on a minimal open air rig and I pull 900W at the wall.  I can't imagine memclocks at 150 would drop me below what you're seeing on AC...though I will try tonight.

Hmm not sure but some ideas:
80Plus-Gold PSU?  What load%?
Linux on USB?
Sempron Single core CPU?
No CPU bug right?  What can be 20W easy.
Turned off EVERYTHING in BIOS?  (SATA, IDE, USB3, floppy, onboard sound, secondary Ethernet, serial, EVERYTHING.  Hell I turned off MB LED Smiley )

I will recheck my wattage this weekend.  IIRC when I measured it I was running 820 on core.  I am now running auto-gpu up to 835 so it could be 10 - 15W higher.

I wonder how much of a beast that 5870 w/ aggressive clocks is.  You could measure wattage with and without it to get an idea.


you guys want a good laugh?  you stimulated me to look into my Win 7 msconfig file to see what Microsoft had hidden...

which of all this shit do i absolutely need to run for a dedicated mining rig?  in other words, what can i dump?

http://i.imgur.com/H4O1i.png
http://i.imgur.com/yjY9M.png
http://i.imgur.com/Mg7OE.png
http://i.imgur.com/bBfz3.png
http://i.imgur.com/x4GTY.png
http://i.imgur.com/rOnke.png
http://i.imgur.com/M6UW7.png
http://i.imgur.com/54syO.png
http://i.imgur.com/JUluu.png
http://i.imgur.com/vehLD.png
http://i.imgur.com/GHLTC.png
http://i.imgur.com/ecJbM.png
http://i.imgur.com/oYNPD.png
http://i.imgur.com/BLBWz.png
wow, google updater. why is that even on your machine?

It is pitch black. You are likely to be eaten by a grue.

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February 05, 2012, 01:11:03 AM
 #22

I must be doing something wrong...I've got 2x5970's and one 5870 all @300mem and 835/950 respectively on a minimal open air rig and I pull 900W at the wall.  I can't imagine memclocks at 150 would drop me below what you're seeing on AC...though I will try tonight.

Hmm not sure but some ideas:
80Plus-Gold PSU?  What load%?
Linux on USB?
Sempron Single core CPU?
No CPU bug right?  What can be 20W easy.
Turned off EVERYTHING in BIOS?  (SATA, IDE, USB3, floppy, onboard sound, secondary Ethernet, serial, EVERYTHING.  Hell I turned off MB LED Smiley )

I will recheck my wattage this weekend.  IIRC when I measured it I was running 820 on core.  I am now running auto-gpu up to 835 so it could be 10 - 15W higher.

I wonder how much of a beast that 5870 w/ aggressive clocks is.  You could measure wattage with and without it to get an idea.


you guys want a good laugh?  you stimulated me to look into my Win 7 msconfig file to see what Microsoft had hidden...

which of all this shit do i absolutely need to run for a dedicated mining rig?  in other words, what can i dump?

http://i.imgur.com/H4O1i.png
http://i.imgur.com/yjY9M.png
http://i.imgur.com/Mg7OE.png
http://i.imgur.com/bBfz3.png
http://i.imgur.com/x4GTY.png
http://i.imgur.com/rOnke.png
http://i.imgur.com/M6UW7.png
http://i.imgur.com/54syO.png
http://i.imgur.com/JUluu.png
http://i.imgur.com/vehLD.png
http://i.imgur.com/GHLTC.png
http://i.imgur.com/ecJbM.png
http://i.imgur.com/oYNPD.png
http://i.imgur.com/BLBWz.png
wow, google updater. why is that even on your machine?

Dump everything, install linux.  'nuff said.

12Um6jfDE7q6crm1s6tSksMvda8s1hZ3Vj
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February 05, 2012, 03:59:23 AM
 #23

I must be doing something wrong...I've got 2x5970's and one 5870 all @300mem and 835/950 respectively on a minimal open air rig and I pull 900W at the wall.  I can't imagine memclocks at 150 would drop me below what you're seeing on AC...though I will try tonight.

Hmm not sure but some ideas:
80Plus-Gold PSU?  What load%?
Linux on USB?
Sempron Single core CPU?
No CPU bug right?  What can be 20W easy.
Turned off EVERYTHING in BIOS?  (SATA, IDE, USB3, floppy, onboard sound, secondary Ethernet, serial, EVERYTHING.  Hell I turned off MB LED Smiley )

I will recheck my wattage this weekend.  IIRC when I measured it I was running 820 on core.  I am now running auto-gpu up to 835 so it could be 10 - 15W higher.

I wonder how much of a beast that 5870 w/ aggressive clocks is.  You could measure wattage with and without it to get an idea.


you guys want a good laugh?  you stimulated me to look into my Win 7 msconfig file to see what Microsoft had hidden...

which of all this shit do i absolutely need to run for a dedicated mining rig?  in other words, what can i dump?

http://i.imgur.com/H4O1i.png
http://i.imgur.com/yjY9M.png
http://i.imgur.com/Mg7OE.png
http://i.imgur.com/bBfz3.png
http://i.imgur.com/x4GTY.png
http://i.imgur.com/rOnke.png
http://i.imgur.com/M6UW7.png
http://i.imgur.com/54syO.png
http://i.imgur.com/JUluu.png
http://i.imgur.com/vehLD.png
http://i.imgur.com/GHLTC.png
http://i.imgur.com/ecJbM.png
http://i.imgur.com/oYNPD.png
http://i.imgur.com/BLBWz.png
wow, google updater. why is that even on your machine?

Dump everything, install linux.  'nuff said.

i will if you can assure me of one thing; for cgminer in Windows, all i had to do was unzip the cgminer download and add a one line .bat file to start mining.  is linux that simple?
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February 05, 2012, 04:28:03 AM
 #24

If you use Ubuntu 11.10 there are built binaries that you just unzip and run, assuming you have Catalyst and SDK installed. Kano has step by step setup. Or just put BAMT on a USB and boot it on your Windows machine. Everything is installed already, just edit one config file and profit. (sorry for not adding links, posting from phone)

Losing hundreds of Bitcoins with the best scammers in the business - BFL, Avalon, KNC, HashFast.
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February 05, 2012, 08:48:47 PM
 #25

check - 950W 80+

If you are probably pulling 85% of peak DC load that could be costing you a couple %.  Most 80Plus-Gold PSU have a much flatter curve so the drop off isn't bad you might be burning 20W+ more here.  Probably not worth a new PSU, just something to keep in mind.   Also check the temp of your PSU.  The "80Plus" program is good because it gives us something to compare models but it is somewhat unrealistic.  They measure efficiency at 77F.  Even if your room is 77F it is unlikely the inside of your PSU is 77F. Smiley

I would like to see a 90Plus program measured at 85F.


Quote
nuts...now I have to hook up a monitor and keyboard ;-)  I'll do that later

Yeah it is the only time I hook up the keyboard and mouse.  Turning off the junk in BIOS can save you 20W or more.  Especially stuff like USB3, Floppy controller, onboard audio because they aren't part of the southbridge they are usually seperate ASICS.  5W here, 2W there, 1.5 here.  It starts to add up.

Last thing I would say is I used MSI 890FXA-GD70 board.  Different boards may have different system wattage depending on power configuration and components used.

Quote
I get 435MH/s at @950/300 - very stable.  Are you running with cgminer?  I'm using bamt, I haven't made the plunge yet (is it worth it?)

I actually used cgminer before BAMT. BAMT adding cgminer is why I started using it (after I and other paid to have RPC support added to cgminer).  The learning curve is a little steep (just because cgminer has so many options) but once you got the config files set I think it is unbeatable.



Coincidentally I had ordered an OCZ 1250W 80+ PS last week and hooked it up to that same rig today, changing nothing else.  Low and behold I dropped from 900W to 790W!  After looking a bit longer, the 950W PS I was running is apparently not 80+ as I had thought, lesson #1.

I also pulled out the monitor/keyboard and turned off everything as you mentioned and dropped another 10W.  A rough calculation puts that savings to be a little over $0.50/day with this power supply.  Not too shabby.
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