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[Official] EVGA Classified & K|NGP|N Owner's Club - Page 1113

post #11121 of 21377
Quote:
Originally Posted by coelacanth View Post

Sounds like you're on water at those temps. With a stock BIOS you're probably going to run into the power target limit before anything.

Are you using a custom BIOS? Are you overvolting only with PX and not the Classy tool?
1) I am on water (EK block + swiftech H220)
2) I am on the included LN2 BIOS (115% power target)
3) I have not hit the power limit once according to precision.
4) I am using the classy tool to over-volt.
5) the memory can achieve 7400mhz (I haven't been playing with it yet to see if I can possibly top it out any more)
post #11122 of 21377
So I have another question, how does the power target affect the overclock? With my skyn3t rev 4 bios I have a power target of 100-200%. when I run +130 core and a power target of 200 I get 3800 unigine valley, but now at 1.3 volts and +190 and a power target of 100%, score goes down to 3350. I thought I figured it out but guess not. Any idea how this comes into play?
post #11123 of 21377
The card will throttle to maintain power target. It will drop somewhere near stock speeds, hence the lower score higher clocks will need higher power target
post #11124 of 21377
Simply putting in +190mhz increase into precision doesn't mean the GPU will actually give you that if you run into any of the power, temperature, or voltage limits.

Basically you should crank up the power limit as high as you feel safe/comfortable doing, throw as much cooling at the core as you can and then just worry about voltage. Always keep in mind that the very high end over-clocking is a balancing act between the benefits and drawbacks of more voltage. Putting too much voltage in can hinder your clock speed in some scenarios, ESPECIALLY when your cooling can't keep up (more voltage = more heat = more power draw).

When you are testing your over-clock, see what the ACTUAL reported clock speeds are during full load, don't rely on what value of offset you put into the program.
post #11125 of 21377
Quote:
Originally Posted by mrlance View Post

So I have another question, how does the power target affect the overclock? With my skyn3t rev 4 bios I have a power target of 100-200%. when I run +130 core and a power target of 200 I get 3800 unigine valley, but now at 1.3 volts and +190 and a power target of 100%, score goes down to 3350. I thought I figured it out but guess not. Any idea how this comes into play?

Use the Precision X monitor and you should be able to see what it's doing. It will throttle if it gets too hot.
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post #11126 of 21377
Thanks guys, That's good info for sure. I'm right now at 1.33125 volts and +190 core and +500 memory is at 75 so far max on unigine valley. I think the throttling might be that the arror is on power target to prioritize, I set it to temps instead now, and will post my results. Geez I've learned alot in this thread alone thumb.gif
post #11127 of 21377
I always thought prioritize power target is better, but interested to see if there is a line of thought that it isn't... since my card is on water, the temperature settings in PX have no importance/impact to me other than setting the hottest I'll let my card run (as the card is no longer is able to control fan speed).
post #11128 of 21377
Quote:
Originally Posted by mrlance View Post

Thanks guys, That's good info for sure. I'm right now at 1.33125 volts and +190 core and +500 memory is at 75 so far max on unigine valley. I think the throttling might be that the arror is on power target to prioritize, I set it to temps instead now, and will post my results. Geez I've learned alot in this thread alone thumb.gif

thumb.gif
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post #11129 of 21377
Quote:
Originally Posted by JLMS2010 View Post

Use the Precision X monitor and you should be able to see what it's doing. It will throttle if it gets too hot.

Exactly. Set up the onscreen display for clocks, memory usage, voltage and temperature.

Then set the power and temp sliders to maximum to ensure no throttle.

And then, of course, watch the temps with the onscreen display.
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post #11130 of 21377
What is the point of the OV max limit in PX? I can't get that one to budge and PX keeps trying to tell me I'm at my voltage limit but yet it is not throttling clock speeds.
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