Couple of Beginner Questions

Hi Fellow Folders so i have a couple of questions

Will Folding@Home with my I7 2700k Overclocked to 4.5 Ghz
and a 780 + 770 have any effect on the life of these parts overclocked
since there all been used 24-7 instead of some of the day.

and with the specs mentioned is 162264 Points Per Day
good for these specs?.Or is there a specific client i could be
using to do more?.

 

I think life of parts usually depends on voltages you apply to it.
If you have to add a lot of additional voltage and its beyond safe mark, it might make your components unstable on OC.

The safest way to fold 24/7 in your case would be:
1) set CPU and GPUs to stock clocks/voltage (or even underclock CPU)
2) delete CPU folding slot
3) focus GPU folding slots

CPU doesn't produce much PPD and 1 core used for GPU folding. So having 2 free cores is not a bad idea.

That should be right score.
However, I believe you can overclock your GPUs to get over 200k PPD.
How safe would it be is depends on the GPUs vendors and applied voltage.

 

Generally, CPUs barely do a fraction of what current GPUs are cranking out, however the newer CPUs also use much less power when they're not overvolted.

My approach to Folding is that I run FAH 24/7 with no overvolting on the CPU or GPUs. That way they remain at higher performance / watt.

If your CPU / GPU is running at a high voltage, it will be terribly inefficient at 24/7 workloads like FAH and would cost you quite some extra.

On a sidenote, I've been folding for quite more than 2 years. GTX260 + i7 930 first, then now 7970. Was folding 7970 CF a while back, but I'm waiting to install my watercooling first.

 

Interesting the Overclock on the I7 2700k is at 1.32v and has been stable since i got it.
If that's the case i mite use my 2nd 770 instead of the I7s i have.

Both cards are abbove 90% Asic and so far can get pretty crazy clocks above 1200 on the core for both at least.
Mite setup my overclocks again later.Thanks for the help sverek

 

Those are good OCs on the 770s if they're indeed stable for FAH. I find FAH is brutal on high overclocks. You might be stable in all games but as soon as you start folding, you can get a failed WU. A higher ratio of failed WU is detrimental to your result returns and thus PPD, and too many failed WUs will pause your folding for 24 hours.

Remember that FAH is all about returning results as fast as possible so that more work units are generated.

 

Well with the cards auto clocking its very stable not a single issue.
I guess with that information i will leave them at stock for now.

GTX 780 1053mhz core 1502mhz Memory 1.16v
GTX 770 1149mhz core 1752mhz Memory 1.18v

 

Do you mean having 780 + 770 x 2? (3 GPUs folding)

 

Yes + maybe more Currently have a GTX 780 and 2 770s + a few HD 6000 series AMD cards.

 

Currently, there are two types of WUs available for Kepler GPUs, FahCore_15 which gives poor PPD and FahCore_17 which gives great PPD. Unfourtunatly, there isn't a 100% sure method to get FahCore_17 WUs and avoid FahCore_15 WUs. However, FahCore_17 WUs are the future of GPU computing so once FahCore_15 WUs are over (no ETA as to when that will happen), all supported GPUs will get FahCore_17 WUs.

Assuming you get FahCore_17 WUs, both your GPUs should be getting over 100,000 PPD. I can't remember the exact figure but GTX 780 Ti gets ~200,000 PPD on some FahCore_17 WUs.

If you want to optimize for best PPD/Watt, then you can start with folding on high-end GPUs. If you have some AMD GPUs, do note that the latest Beta Drivers brings a significant improvement in folding performance. However, I would recommend that you wait until it is released as WHQL to play safe, unless you like to test things out.

Finally, if you still can afford the power bill, you can then throw in some CPUs for fun... I am still folding on an Intel Pentium E5500

 

ive alwas run my gpu's and cpu's overclocked but i keep the temp's down and don't over volt that much my 2600k has been running at 4.5 1.34 for 2 years but at 65c on most core the 780's im running are currently at 1250 the temp are at about 60 so ive got some head room left for more only ever had one OCZ power supply fail and that was because it was crap!

 

Another question would the fact both cards are running PCIE 2.0 8x cause a performance hit?.
And would it be right that a GTX 770 is getting 34681 PPD.Its pretty low
compared to my GTX 780 getting 141512.Does 700 cuda Cores make such a difference?

 

both my 670 will be running in PCIE 2.0 8x should be fine even for gaming and the 770 it depends on what work unit your working on the points can very quite a bit

 

I don't really think that your GPUs are having an issue with PCI-E limitation. Worst case is ~15% loss (Details).

Regarding the PPD difference, iancook221188 is correct. It seems that your GTX 780 got FahCore_17 WU (High PPD) while your GTX 770 got FahCore_15 WU (Low PPD). This is only a temporary situation and once FahCore_15 WUs are finished, it will be fine (no ETA as to when that will happen).

 

I checked the Client and it says the GTX 770 is doing FahCore_17 yet still quite low PPD compared to the GTX 780.

 

That's weird. What is your GPU Utilization? Have you tried pausing GTX 780 and observing what happens to GTX 770?

 

GTX780 is much stronger card. Can you give us ppd numbers on both cards?

 

Can't currently as i am Re Building my system so No Folding for a few days till done.
I checked with GPUz when i posted about low PPD and both cards 98-99% Load.

the GTX 780 was up around 130000-140000 i believe.
The 770 was at most around 35000.
Should 700 or so Cuda cores make such a big Difference and Architecture?.

 

The difference between GTX 780 and GTX 770 is just too great for the difference between Cuda Cores and Architecture. My GTX 660 Ti gets between 70,000 to 90,000 PPD so your GTX 770 should be at least higher when getting FahCore_17 WUs.

Hopefully, once your have rebuilt your system, everything will work out fine.

 

my 670's only get from 65k-85k what clock you at panther?

 

EVGA GTX 660 Ti SC @ 1178 MHz & 3121 MHz -> Between 70K to 90K
EVGA GTX 650 SC @ 1254 MHz & 2499 MHz -> Between 15K to 20K

I was using Driver 320.18 WHQL (those estimates are from this version) and only yesterday, I upgraded to 334.89 WHQL to test a new FahCore_17 version (0.0.53) which potentially fixes the slow-down that occurs with the new Driver version. So far, everyone else has reported either same PPD or an increase except me since I am seeing a decrease in the PPD, ~10K PPD for my GTX 660 Ti and ~1K PPD for my GTX 650. I have chalked this up to my system being old and the fact that I have used CPU Affinity to lock two instances of FahCore_17 to a virtual CPU so that I can run CPU:7 on the system.