TheWizardMan
I was able to get a few solid runs of Firestrike with both my 1080 Tis clocking over 2100 Mhz (2101 Mhz to be exact). One card has a bit more room, but I haven't pushed it yet.
 
http://www.3dmark.com/3dm/19756610
 
I have to tell you guys, I think you're really selling yourself short if you are using Precision XOC over Afterburner. I uninstalled Precision XOC today to try Afterburner out and after fooling around with the custom voltage curve I was able to go from a high clock of 2050 to over 2100. The software is much more stable as well. Highly recommend giving it a try if you haven't.
 
I don't think I'm particularly stable over 2100 and will be dialing it down to 2050 for daily driving, but I'm thrilled with this result!

I did the same with afterburner.  I can bench pretty much all i want at 2100 on core and +650 on memory.  But unless you want to be rudely interrupted while gaming by a random gpu crash 2050 on the core seems to be the 1080ti sweet spot.  I've come to the conclusion that with the rapidly changing power draws during gaming the the damned 120% power limit wall that your voltage smacks into countless times causes too much instability at anything over 2050.  Meanwhile a benchmark has max draw the entire process leaving the gpu very stable.  At least in my hours of testing.  I havn't tried to go higher than 2100 MHz either.

I have a 60mhz offset going on my SC2 hybrid and I'm hitting 2012mhz on the card under load in metro last light. It's the same I was getting at 55mhz offset. Dose that mean I reached my cards limit?. Sorry if it's a dumb question but it's my first real build and first OC on a GPU

HeavyHemi

TacticalBeard
I have a 60mhz offset going on my SC2 hybrid and I'm hitting 2012mhz on the card under load in metro last light. It's the same I was getting at 55mhz offset. Dose that mean I reached my cards limit?. Sorry if it's a dumb question but it's my first real build and first OC on a GPU

The clocks go in ~13mhz steps. So you need to increase your clock offset a bit more to hit the next bin (clock step) which would be 2025mhz.

thank you very much

I just put my 1080ti under water with an EKWB waterblock, and this is the stable OC that I got. I initially thought that I didn't win the silicon lottery, because I kind of got spoiled winning the silicon lottery with my GTX 1070 FTW Hybrid... On my 1070 I was able to get a stable 2164mhz @ 175+ offset, and I don't remember the numbers for the memory but I was running a +400 offset and still only getting to about 46-50 degrees underload. Which is why I initially wanted to get the 1080ti hybrid, but I was impatient and I wanted to do a full hardline loop in my system anyways~ So I just went with a 1080ti FE (from EVGA obviously!), and pieced together a hardline loop. However, after seeing some posts it seems like my 1080ti is fairly average when it comes to overclocking... Although I have seen some owners being able to get 2100+mhz on their 1080ti which made me think that I lost the silicon lottery even more! Glad this thread exists to ease my mind a little.
 
Also, is anyone else always hitting their power limit?? I've noticed OSD says I'm hitting my power limit, but the card isn't even using 120% power? It'll say I'm hitting my power limit even at like 115%, unless the notification for the power limit is sometimes delayed? Is it okay if the card hits power limit underload?
 

Hi guys,
 
Just a quick question:
 
I’ve seen two different readings, If I use Unigine to stress my 1080Ti while OC, I was able to see 2113Mhz, while PrecisionX shows 2088Mhz.
Unfortunately I still can’t get it stable, it throttles down, and eventually crashes Unigine. Need to fiddle a little more.
 
My doubt is witch reading is to take in account? Unigine or PrecisionX ?

QuasarZX12
Hi guys,
 
Just a quick question:
 
I’ve seen two different readings, If I use Unigine to stress my 1080Ti while OC, I was able to see 2113Mhz, while PrecisionX shows 2088Mhz.
Unfortunately I still can’t get it stable, it throttles down, and eventually crashes Unigine. Need to fiddle a little more.
 
My doubt is witch reading is to take in account? Unigine or PrecisionX ?

Precision XOC is correct. Unigine often displays the wrong readings.

Is it really worth it to increase the gpu voltage to get higher overclocks? Is it okay for 24/7 use?

Valtrius Malleus

vipersb1
I may be missing something here but how are people getting 2 ghz+ clock speeds with only +165 offset? I am running a EVGA 1080ti Founders Edition on water and using an offset of +200 only gets me to 1607...
That being said I am stable with a core offset of +200, anything higher crashes... and my memory is stable with an offset of +500.

What voltages are you using? 1.06v is max at 0% offset on the voltage slider, that should get you about 2000MHz with +165 offset. You can increase it to 1.09v at 100% on the voltage slider. I assume you've got the power target and temp target to the max? What temps are you getting under water? Maybe the water block isn't making contact.

I have not touched the voltage slider on the left but yes, temp and power target are all the way up. Under full load I have never seen the card go above 42c when overclocked, so core temperature is not the issue. What do voltages have to do with core clock though? I know it can impact stability but I am just talking simple math here. If the clock rate is at most 1683 on EVGA's highest clocked 1080ti, how would +165 ever get you over 2000 mhz. 1683 + 165 only comes out to 1848. Is the voltage somehow a multiplier of the clock speed? When I put the voltage slider all the way up it only kicks up to what EVGA XOC shows as 800mv.

Valtrius Malleus

vipersb1

Valtrius Malleus

vipersb1
I may be missing something here but how are people getting 2 ghz+ clock speeds with only +165 offset? I am running a EVGA 1080ti Founders Edition on water and using an offset of +200 only gets me to 1607...
That being said I am stable with a core offset of +200, anything higher crashes... and my memory is stable with an offset of +500.

What voltages are you using? 1.06v is max at 0% offset on the voltage slider, that should get you about 2000MHz with +165 offset. You can increase it to 1.09v at 100% on the voltage slider. I assume you've got the power target and temp target to the max? What temps are you getting under water? Maybe the water block isn't making contact.

I have not touched the voltage slider on the left but yes, temp and power target are all the way up. Under full load I have never seen the card go above 42c when overclocked, so core temperature is not the issue. What do voltages have to do with core clock though? I know it can impact stability but I am just talking simple math here. If the clock rate is at most 1683 on EVGA's highest clocked 1080ti, how would +165 ever get you over 2000 mhz. 1683 + 165 only comes out to 1848. Is the voltage somehow a multiplier of the clock speed? When I put the voltage slider all the way up it only kicks up to what EVGA XOC shows as 800mv.

If the voltages were lower due to some sort of throttling then that would affect the highest clock speeds possible. It should be capable of 1.06v out the box which should net you over 2000MHz. For low graphical games I use a saved profile with a voltage curve limited to 1.0v which can just manage 1987MHz, can't get to 2000 without crashing. With more voltage headroom you should be getting a higher frequency due to how Pascal cards essentially over clock themselves if they have the capability to do so.

If your setting an offset of 200 but only achieving 1683MHz then it would seem there is either something wrong with the card or its not reaching its full potential. Is the card reaching 100% utilisation in benchmarks? What's your CPU and what resolution do you game/benchmark at?

Edit: Just read the last sentence in your post. 800mV is about half what the card can do. It appears to be bottlenecked by something or something else is up. Uninstall Precision, reinstall GPU drivers using DDU and then Install MSI Afterburner to ensure the fault is not with Precision. See if that helps.

I will try that, everyone seems to prefer Afterburner anyway. I ran a the Heaven benchmark and it showed the core clock at 2100 mhz and memory at 6000 mhz so I guess I am getting a good overclock, just precision not showing it that way. The 800 mv is in idle. I also set the voltage curve but was not able to see my gpu voltage when running the benchmark. Also, core temp only hit 45c at 2100 mhz during the benchmark. EK's 1080ti waterblock is quite effective.

Looping for a few hours...
 

Valtrius Malleus

vipersb1

Valtrius Malleus

vipersb1

Valtrius Malleus

vipersb1
I may be missing something here but how are people getting 2 ghz+ clock speeds with only +165 offset? I am running a EVGA 1080ti Founders Edition on water and using an offset of +200 only gets me to 1607...
That being said I am stable with a core offset of +200, anything higher crashes... and my memory is stable with an offset of +500.

What voltages are you using? 1.06v is max at 0% offset on the voltage slider, that should get you about 2000MHz with +165 offset. You can increase it to 1.09v at 100% on the voltage slider. I assume you've got the power target and temp target to the max? What temps are you getting under water? Maybe the water block isn't making contact.

I have not touched the voltage slider on the left but yes, temp and power target are all the way up. Under full load I have never seen the card go above 42c when overclocked, so core temperature is not the issue. What do voltages have to do with core clock though? I know it can impact stability but I am just talking simple math here. If the clock rate is at most 1683 on EVGA's highest clocked 1080ti, how would +165 ever get you over 2000 mhz. 1683 + 165 only comes out to 1848. Is the voltage somehow a multiplier of the clock speed? When I put the voltage slider all the way up it only kicks up to what EVGA XOC shows as 800mv.

If the voltages were lower due to some sort of throttling then that would affect the highest clock speeds possible. It should be capable of 1.06v out the box which should net you over 2000MHz. For low graphical games I use a saved profile with a voltage curve limited to 1.0v which can just manage 1987MHz, can't get to 2000 without crashing. With more voltage headroom you should be getting a higher frequency due to how Pascal cards essentially over clock themselves if they have the capability to do so.

If your setting an offset of 200 but only achieving 1683MHz then it would seem there is either something wrong with the card or its not reaching its full potential. Is the card reaching 100% utilisation in benchmarks? What's your CPU and what resolution do you game/benchmark at?

Edit: Just read the last sentence in your post. 800mV is about half what the card can do. It appears to be bottlenecked by something or something else is up. Uninstall Precision, reinstall GPU drivers using DDU and then Install MSI Afterburner to ensure the fault is not with Precision. See if that helps.

I will try that, everyone seems to prefer Afterburner anyway. I ran a the Heaven benchmark and it showed the core clock at 2100 mhz and memory at 6000 mhz so I guess I am getting a good overclock, just precision not showing it that way. The 800 mv is in idle. I also set the voltage curve but was not able to see my gpu voltage when running the benchmark. Also, core temp only hit 45c at 2100 mhz during the benchmark. EK's 1080ti waterblock is quite effective.

That's a good overclock. Someone won the silicon lottery. Just curious how long you ran the benchmark for since water has a great capacity store to heat, so it will take a long while, like hours, to reach its max temp.

He was extremely lucky with those overclocks. Just glad to see that silicon is under water and being used to its potential.

GTX 1080 TI FTW3 on air:
stable in

• superposition (1080p extreme): +113MHz / +550MHz 
• superposition (4k optimized): +100MHz / +500MHz
• ARMA III (4k, normal game-play): +83MHz / +450MHz
• GTA 5 (4k, normal game-play): +75MHz / +400MHz

so, it depends... But temperature is king. Maybe I'll put an EKWB on it.

As I said: it depends on temperature, load, fan settings..
+113 means @ ~50% load

• start 2088MHz 1.081V
• 46°C 2075MHz 1.075V
• 51°C 2062MHz 1.062V
• 54°C 2050MHz
• 59°C 2037MHz
• 69°C 2012MHz

Also, use the graph in afterburner to set your max clock at 1.093volts, instead of the quick and dirty +Mhz method. That way you can fine tune what clock you want at each voltage increment.

So sorry for the new question but ... I am using precision. X with power target 120 temp 90 ... but have not played with the voltage on the left ... is there Amy harm to doing this ??? I see people with screen caps with the voltage in the red. Just checking in.