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~~The GTX 670 Overclocking Master-Guide~~ - Page 3

post #21 of 2434
6/3/12 at 12:14am
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Originally Posted by MoYu View Post

Im also wondering whether it is safe to leave the Power Target and Voltage settings running at MAX all the time?

Yes, it's safe. Technically the voltage slider doesn't increase the voltage, it just locks it at the max when the card is under heavy load. When the GPU isn't under load, the voltage still throttles down like it should even when the voltage slider is maxed out in Precision-X. So there's nothing to be worried about.
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post #22 of 2434
6/3/12 at 12:42am
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Originally Posted by Slightly skewed View Post

You know, I don't like overclocking this card. I feel like I don't have full control like I did in previous generations where you set it and it either ran, or it didn't.

You can use nvidia inspector to force a boost free overclock using power level P2. It's a little involved tho.
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post #23 of 2434
6/3/12 at 12:52am
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However, it is still typically the minimum core speed that the GPU will run at under full-load.

Boost clock is not the minimum clock, it's the average clock over the base clock.

Edit: the base clock = minimum clock
Edited by iatacs19 - 6/3/12 at 12:54am
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post #24 of 2434
6/3/12 at 1:22am
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Originally Posted by iatacs19 View Post

Quote:
However, it is still typically the minimum core speed that the GPU will run at under full-load.
Boost clock is not the minimum clock, it's the average clock over the base clock.
Edit: the base clock = minimum clock

Sorry, but you're incorrect on all three points.

The Boost Clock is typically the minimum clock that the GPU will run at while under load. If it's being extremely throttled by power percent, it drops to the Boost Clock, after that it drops to one of the power-saving modes which is 920MHz -- that's the true 'minimum' someone will ever see under-load, but it's not at all typical.

I'm not sure what you mean by the average clock over the base clock. If you're suggesting that the Boost Clock is what the card runs at while under full-load, then that is incorrect. The 'average' core frequency under load should always be the Max boost frequency (Boost Clock plus Kepler Boost).

Technically, the minimum clock speed is the first power saving mode at 324MHz. I've never seen the card drop to this under any type of load. Even 2D applications will pull it out of this state. The second lowest clock speed is the second power saving mode at 920MHz. If you're WAY over your power percent, like when running furmark at 1080p, it will drop to this power saving mode even while at full-load. After that the minimum is the Boost clock. The base clock plays no role here.
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post #25 of 2434
6/3/12 at 1:51am
Quote:
Originally Posted by whybother View Post

You can use nvidia inspector to force a boost free overclock using power level P2. It's a little involved tho.

I'm looking at it now. Is there a guide on how to do it?
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post #26 of 2434
6/3/12 at 3:45am
http://www.obr-hardware.com/2012/05/exclusive-guide-how-to-disable-gpu.html

You need to apply +boost to get the overclock applied. Using this method limits your maximum overclock by about 10mhz.

My batch files (for 24/7 gaming):

overclock.bat
nvidiaInspector.exe -setBaseClockOffset:0,0,125 -setMemoryClockOffset:0,0,500 -setpowertarget:0,111 -setGpuClock:0,2,1300 -setMemoryClock:0,2,3500 -forcepstate:0,2

default.bat
nvidiaInspector.exe -setGpuClock:0,2,705 -setMemoryClock:0,2,3000 -forcepstate:0,16

force_idle.bat
nvidiaInspector.exe -setGpuClock:0,2,705 -setMemoryClock:0,2,3000 -forcepstate:0,8

You want to avoid using the resetAllPStates command. It causes a P state lock and will require a clean driver install to undo. There can also be the odd issue (still not pinpointed) with P states being locked after returning to default (forcepstate:0:16). Not an issue if you only ever use overclock.bat and force_idle.bat.
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post #27 of 2434
6/3/12 at 5:58am
nice well written guide, thanks. i think i will use this once i get my EVGA GTX670 FTW biggrin.gif
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post #28 of 2434
6/3/12 at 8:40am
Good Job Sean. Haven't proof-read the whole thing but I would point out that the Crysis benchmark is just an application for running the game benchmark (not stand-alone) ... so not really 'free'. Also, you could throw up the Stalker - Call of Pripyat and Clear Sky benches, those are stand-alone and free.

Also here:
Quote:
You see how each time my core clock drops my gpu usage also drops?
I believe you meant to say Power Usage wink.gif
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post #29 of 2434
6/3/12 at 9:59am
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Quote:
Originally Posted by whybother View Post

http://www.obr-hardware.com/2012/05/exclusive-guide-how-to-disable-gpu.html
You need to apply +boost to get the overclock applied. Using this method limits your maximum overclock by about 10mhz.
My batch files (for 24/7 gaming):
overclock.bat
nvidiaInspector.exe -setBaseClockOffset:0,0,125 -setMemoryClockOffset:0,0,500 -setpowertarget:0,111 -setGpuClock:0,2,1300 -setMemoryClock:0,2,3500 -forcepstate:0,2
default.bat
nvidiaInspector.exe -setGpuClock:0,2,705 -setMemoryClock:0,2,3000 -forcepstate:0,16
force_idle.bat
nvidiaInspector.exe -setGpuClock:0,2,705 -setMemoryClock:0,2,3000 -forcepstate:0,8
You want to avoid using the resetAllPStates command. It causes a P state lock and will require a clean driver install to undo. There can also be the odd issue (still not pinpointed) with P states being locked after returning to default (forcepstate:0:16). Not an issue if you only ever use overclock.bat and force_idle.bat.

Cool, I'll look into that some more and add a section to the guide. For some people, this might be the best option thumb.gif
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post #30 of 2434
6/3/12 at 10:08am
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Quote:
Originally Posted by brettjv View Post

Good Job Sean. Haven't proof-read the whole thing but I would point out that the Crysis benchmark is just an application for running the game benchmark (not stand-alone) ... so not really 'free'. Also, you could throw up the Stalker - Call of Pripyat and Clear Sky benches, those are stand-alone and free.
Also here:
Quote:
You see how each time my core clock drops my gpu usage also drops?
I believe you meant to say Power Usage wink.gif

I'll add those and fix the Crysis one, thanks thumb.gif

I actually meant gpu usage, but i think i worded that sentence backwards so it might be confusing. I should have said:

477
You see how each time my GPU usage drops my core clock also drops? This is because whenever there's a drop in GPU demand, for example when you're on a loading screen between sections in a benchmark or game, the core clock also drops in order to save power. This is completely normal and just means the GPU is throttling itself whenever additional core frequency is not beneficial, so you aren't actually losing performance. If this is what you're seeing, then go back to Step 2 and ignore the frequency drops that also corresponds with GPU usages drops too.

Makes more sense now, right? biggrin.gif
Edited by SeanPoe - 6/3/12 at 11:15am
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