Originally Posted by ACharmingQuark
No no no no - I am getting anywhere from 18-21K PPD PER
each of the two of the EVGA GTX 580s in the new box for a total of 36-42K PPD (average 38KPPD)!!!
I did not mean to mislead crazyap7 or anyone! Sorry for the confusion.
I don't know of anyone doing over 26K PPD on a 580 - and I believe that's with a homemade GPU POT solution for cooling.
On my 3960X box there is LC for each 580 and for long-term success I am not pushing it over 900/1800 on core/shader clocks. With that I am getting 18-21K depending on WU and other load factors (playing GT-R Evolution and the occasional streaming movie ahem.)
It can do more and run up to about 22+K PPD but it will UNSTABLE MACHINE for sure after about 24-36 hours.
Right now the duo are getting about the usual average of 38K PPD combined. (GPU 1 is at a skoosh under 19K and GPU2 is a skoosh over. )
I hope to do a decent job stepping in for shadOwfax. I hope to read his post that everyone is talking about. I enjoy power/electrical talk as I work with medium and large UPS systems as part of my work as a WAN engineer. But I do not have an EE degree though so my "in-depth" contributions are going to be much more modest than shad0wfax in that regard.Proud
to be a Slammer again!
How does the transfer of folders work? I'm at 54% of a 7622 WU right now and it will finish at 7:21 PM PST (10:21 PM EST / 3:21 AM GMT).
Do my points count up until a certain time and then your points come in afterward, or how does it work? I don't want the switch to hurt the team, so let me know when/how to switch off. Again, I don't want it to detract from the team, so let me know how/when to swap.
I'm with y'all through the end of the month. ACQ is taking over on March 1.
You can dial that GTX 580 in at 900 core / 1800 shader / 2106 Memory and use the -advmethods flag to lock in a very consistent 20,007.00 PPD (I kid you not, that exact value) With a bump up to 904.5 MHz core / 1809 MHz shader / 2106 MHz memory I was getting a rock-solid consistent 20,096.70 PPD. (This all assumes that I wasn't gaming or working.) You'll get all the same 7622 WU every time, although you'll consume more electrical power and produce more heat than you would with the other WUs.
The interesting thing is that with the -advmethods (and I proved it in my post) that it performs better if you load the CPU. I had a PPD increase from 20,370.8 to 20,463.8, all the way up to 20,557.7 by simply loading my CPU more with SMP WUs. (That's at 928 / 1856 / 2106 though.)
Again though, I'm stepping down because the power costs were killing me, so in that regard, the standard variable point WU's might be better. (They're also not as hard on your machine and won't give you NAN - Unstable Machine errors nearly as often as the -advmethods WUs would if you were pushing the limits. I'll be thrashing out -advmethods until the end of the month.)
P.S. My degree is in Civil Engineering, which is roads, bridges, wastewater treatment, air quality monitoring, soils, foundations, etc. The EE(ish) knowledge I have is from past work experience as a technician and power plant operator. :) I think my post was rather basic, and I hope it doesn't come across as immodest!
To get 26,000 PPD on a GTX 580 you'd have to do -advmethods and have a Core clock of 1174 and a shader clock of 2348 with a memory clock in the 2155 to 2225 range. A well-binned and well OC'd evga Ultra Classified hydro-copper 580 would do it, but I'd hate to see that power bill. I'm sure that a water cooled MSI Lightning Extreme (whatever their top edition is) could do it too.
Edited by shad0wfax - 2/10/12 at 8:21pm