1) Message boards : Graphics cards (GPUs) : Restrict the GPU load (Message 24680)
Posted 4375 days ago by Xandres
Now a funny thing happend.

First of all i was still experimenting the lowest voltage for the Spring downclock in combination with furmark. The problem came up: When do i khnow that the Voltage is to low for correct opperation but high enough to not crash the card? (Computing Error)

Since furmark just renders a model without watching the results (artifacts) i decided to put the colcks of the GPU back to Vendor level an then switch the Voltage to the possiblest minimum the card would accept (from 1,000V to 0,913V)to watch a crash happen. So i would khnow "Hey, this was too much." or at last i would watch the artfacts on furmark.

Now the funny thing is - Nothing happend :( Neither artifact or crashes. Not after 1 minute, not after 5 or 10. I waited 3 hours on furmark - but nothing.

After watchin the log from GPU-Z, i could see that the temprature has gone down from 83°C/181°F to 75°C/167°F on the same clocks. The Fan level has gone down too :) From 90%/4600rpm down to 70%/3700rpm and so of coure the noise level by at last half. No wonder since with reduction of the Voltage by -8,7% the power consumption was reduced by 27W(-12,3%).

Im sure there is more room for improvement (more clock) but, right now im happy the way it is with the noise level. If needed later, i would add the two other fans. So right know im at:

Vendor - http://www.gigabyte.com/products/product-page.aspx?pid=3895
780Mhz/1560Mhz/1900Mhz @0,913V (+6,5% Nvidia Original Clock/-8,7% vendor Voltage)

Conclusion: Before playing with the clock, reduce the voltage to the minimum!
2) Message boards : Graphics cards (GPUs) : Restrict the GPU load (Message 24651)
Posted 4377 days ago by Xandres
Well, i do have a good case - http://www.thermaltakeusa.com/Product.aspx?C=1277&ID=1404

But unfortunately i do not want all Fans on the run, since they produce too much "base noise" - even with 7V Mod

So the best solution between silent and cooling was for me till now:

1x 120mm Front Fan on HDD @ 7V
1x 80mm PWM Fan on my old 9800 GT - http://www.quietpc.com/products/discontinued/msi-nx9800gt-zilent
1x 92mm PWM Fan on my i7 2600K - http://www.arctic.ac/en/p/cooling/cpu/3/freezer-13.html?c=2181
1x 140mm PWM Fan on my PSU - http://enermax.com/home.php?fn=eng/product_a1_1_1&lv0=1&lv1=25&no=68

The HDD Fan pulls air in the Case, CPU & GPU uses the air inside, the PSU push the air out
HDD Fan lowest point, GPU, CPU, PSU Fan is highest Point

And i do cleaning. At last twice a month around the case, at last twice a year inside

So in conclusion i say: Before i add more "base noise" with more Fans on Work, i rather downclock the GPU. Right now it seems like a downclock by -10,3% seems good enough for spring weather (23-26°C/73-79°F)

Clock/Shader/Memory

Vendor - http://www.gigabyte.com/products/product-page.aspx?pid=3895
780Mhz/1560Mhz/1900Mhz @1,000V (+6,5% Nvidia Original Clock)

Nvidia Original Clock
732Mhz/1464Mhz/1900Mhz (-6,5% Vendor)

Spring downclock
700Mhz/1400Mhz/1900Mhz @0,950V (-10,3% Vendor/-4,5% Nvidia Original Clock)

Note: Still working on finding lowest Voltage

Idea for Summer downclock
650Mhz/1300Mhz/1900Mhz @0,913V (-16,7% Vendor/-11,2% Nvidia Original Clock)

Note: I can't go below 0,913V (he don't aceppt it)

And now i have a funny change: At the Vendor Clock my GPU Usage was around 80%. But at the Spring downclock my GPU Usage is now around 90%. Reason ?
I think of not optimised code or adjusted code for 100% Usage of weakest 500er Card (550 Ti?) and so stronger cards are less used and need the SWAN_SYNC = 0 command for full use.


@ExtraTerrestrial Apes

Your right *thumbs up* My CPU is optimized enough for me. The CPU is around 65°C/149°F on 100% Load alone without GPU. The problem lies here with the change of GPU.

If im not happy with the performance of the downclock, maybe i activate again my 200mm side Fan @ 7V to pull air in the Case and/or i add again a 120mm fan @7V on the back to push the air out. (With my old System of Intel Core 2 Duo E6600 and Nvidia 7500GT i have needed them)

PS: It's going Off Topic here - is it a problem here in this Forum ?
3) Message boards : Graphics cards (GPUs) : Restrict the GPU load (Message 24646)
Posted 4378 days ago by Xandres
First of all - Thanks for the fast Response

Where should i begin ...
1) The summer is comming... I have it explained to short/wrong way.

With summer i meant the hot ambient temperature, and with this a hotter System who has to be even louder than before to cool itself. My GTX 570 OC is under heavy load* .... lets say its a very silent vacum cleaner ;)

*Note: GPU Utlisation is Only around 80% with >72% Fan and around 77°C/171°F @ ambiente <23°C/<74°F (GPU Limit 97°C/206°F) And the SWAN_SYNC = 0 command is not activatet!!!

You see, i have a little issue here :)

2)Downclock the CPU... No Option, since im happy with the noise level and heat because of 3)

3) My ASUS Mainboard has a nice feature called ASUS EPU - a Power controll IC for the whole System. It controls even my CPU Voltage (if activated) to a good minimum needed. 0% Load:0,840V - 100% Load 1,128V

So the "Power saving" Energy Managment option is not needed.

4) To bad there is no command for it under Boinc - future feature maybe ?

5) Downclock the GPU... Well, last option, so right now im doing experiments with Nvidia Inspector. Its good with the tunning shortcuts for the autostart :)

6) In addition to 5) im playing with the tought of adding the SWAN_SYNC = 0 command after Downclock the GPU ... good Idea???
4) Message boards : Graphics cards (GPUs) : Restrict the GPU load (Message 24639)
Posted 4378 days ago by Xandres
Hello,
i want to restrict the GPU utilization in %.

Since there is a SWAN_SYNC=0 command, i hopped there is a command to say: Just 60% utilization of the GPU

Main reason: Volume Control of the Gigabyte GTX 570 OC
Second reason: Summer is comming :)


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