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post #1711 of 28136
Quote:
Originally Posted by Stateless View Post

Interesting...I have seen it hit 1202 before and it basically almost instant crashed, but is when I set the Offset to +200 on teh Core and had max voltage, Unigine ran for about 20-30seconds before it crashed. Reducing in increments of 20 on the core to 180 netted like 1184 or so on the core, was able to get about a full run before a crash. Reducing to 160 on the core gave me about 1164 or so, Unigine lasted a bit longer, about 3-4 runs before crashing.

I never used K-Boost, but will give it a shot to see what happens. Currently testing the same settings but adding +100 to the memory.

Here I was hoping that I was not having an issue, but does yours lock down at the same exact Mhz with no variations? I have made it throttle when I used a higher fan profile and temps were higher and it would drop from 1100 to 940 or so, but ever since it has locked in at 1150.

Mine varies even at stock. I would just enable K-boost and see what your core is running at on the desktop. My guess is it will be 1202 or so, which means even though heaven never boosts that high, other games can and will.

I had +120 on my SC card which gave me 1132-1150 in Heaven Heaven and ran it for over 3 hours yesterday, no issues at all. Then I launched WoW, started to raid, and artifacts started happening all over the place after about an hour. Looking at my chart, WoW was using 875MHz to 1202MHz depending on what it was rendering. I ended up having to lower the core down to +90 to get them to disappear, bringing the max boost in the game down to 1168 according to precision.

I really feel your pain, I feel like your doing the exact same things I was doing yesterday until I started branching out to other games. So much testing, just to get artifacts in a game that wasn't even demanding. tongue.gif
Quote:
Originally Posted by dph314 View Post

But with a +150mhz offset, the card got up to 1202mhz, then 1215mhz for a few seconds during most of the 3rd graphics test, but then crashed while loading the 4th test. So...looks like I found this one's limit.

+150 on a SC is ~1226 core and +140 is 1216 or so? If you enable K-boost what does your core run at on the desktop? I feel your problem is the same as Stateless. Your applying a huge overclock that is only stable because the card is throttling and as soon as you hit an app that won't throttle the card you'll crash/artifact. I think that's why your seeing a steady 1189MHz on that 2nd card because your actual boost is ~1216 core.

I'd really like to know if my theory is correct. tongue.gif
Edited by Murlocke - 3/2/13 at 7:17pm
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post #1712 of 28136
Quote:
Originally Posted by Murlocke View Post

Well +150 on a normal Titan will boost up to 1202 if my math is correct. You are throttling, it's just throttling from a much higher core. When you get into a game that is less demanding and the card starts using it's max boost possible you'll likely see artifacts/crashing. Sounds like you are experiencing the same thing as our cards, but just need to test with more than 1 program.

I can also run 1202 core all day long (throttles to 1150ish) on Heaven/Valley, but as soon as I start branching out to less demanding games that won't throttle the card I run into issues. Basically, the card is capable of running 1150-1178 core speed, but in order to get that speed in a demanding game you need to set the max boost to 1200-1225. So, we can't win because that will be unstable on every card due to the watt draw. We have to get our max boost to about 1163-1178 and then deal with the throttling to 1083-1132 in most games.

Enable K-Boost and restart and the card will run your Max Boost on the desktop, then you can see it throttle when you start heaven/valley. tongue.gif
I tried Precision X earlier, same results. frown.gif

Ok...Well I did as you instructed and enabled K-Boost. Precision X asked me to reboot and when the desktop loaded and I loaded in Precision, it was showing me that it was boosting to 1149mhz. I then loaded in Unigine and even on the loading screen it was showing me 1150mhz. Unigine is on it's first run and it is still locked at 1150mhz. So from teh moment the desktop came up and I immediately loaded Precision it was showing the same 1150mhz that i have been running at for the last 2 hours or so with no chagnes. I am going to let Unigine run for a little bit to see if something changes, but so far nothing has, I am still locked in at 1150mhz.

I just ran a benchmark run when I increased memory to +100, I am going to let it do 2 passes under K-Boost then re-run a benchmark. If I am correct, the score will be about the same since my mhz for both memory and GPU are locked down and are not moving. Temp is also staying at the same levels too.
post #1713 of 28136
I am on my 9th run currently of heaven 4.0 on my SLI Titans.

Both are running 1150 mhz with not one drop yet. Actually the first card increased in temps for a few seconds beyond what it normally does and the fan speed jumped up to accommodate which caused a decrease in voltage a clock speed but it has not done that since. It was only for a few seconds. Not sure what that was but anyways both are running rock solid now at 1150 mhz.


Settings for both cards are as follows:

TDP Set to 106 with it Prioritized
Temp Set to 85C (not linked)
Core Offset at +110Mhz
Memory Set at Default
Fan Set to customer profile but basically fan speed is about 3% lower then the current temp at all times.

GPU Power can vary anywhere from 92% -99%
Mhz @ 1150 Stable and Locked, No Downclocking (Not Using K-Boost)
Max Temp 85C
Max Fan Speed 82%
Max Volts 1.150
GPU Usage 99%

Both Titans have the SC BIOS. One of the cards are actually and SC but the other one I had to flash to get SC speeds.


NEVER MIND I just crashed on my 9th run!!!! ffs this is getting annoying... mad.gif
Edited by FenixPD - 3/2/13 at 7:16pm
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post #1714 of 28136
I want to post this image of the Titan on the Hydro Copper block. What strikes me most about this photo is the power %. It stays within 60-70% of the limit. Could temps that low really make such a dramatic effect on power consumption? If so, going with water would free up a ton of headroom.

post #1715 of 28136
The modded EVGA SC Bios.. Titan285.zip 131k .zip file
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post #1716 of 28136
Quote:
Originally Posted by FenixPD View Post

I am on my 8th run currently of heaven 4.0 on my SLI Titans.

Both are running 1150 mhz with not one drop yet. Actually the first card increased in temps for a few seconds beyond what it normally does and the fan speed jumped up to accommodate which caused a decrease in voltage a clock speed but it has not done that since. It was only for a few seconds. Not sure what that was but anyways both are running rock solid now at 1150 mhz.


Settings for both cards are as follows:

TDP Set to 106 with it Prioritized
Temp Set to 85C (not linked)
Core Offset at +110Mhz
Memory Set at Default
Fan Set to customer profile but basically fan speed is about 3% lower then the current temp at all times.

GPU Power can vary anywhere from 92% -99%
Mhz @ 1150 Stable and Locked, No Downclocking (Not Using K-Boost)
Max Temp 85C
Max Fan Speed 82%
Max Volts 1.150
GPU Usage 99%

You running Heaven at 1080p and full settings correct? And is your card a SC edition or regular edition? Just curious because if it is a regular and +110mhz is giving you 1150mhz with boost which is the same boost as mine, but I have my core at +150mhz.

I am at the moment running K-Boost to test a theory another user suggested, but I am still locked at 1150 since booting up the computer under K-Boost and no drops in speed still.
post #1717 of 28136
Quote:
Originally Posted by Stateless View Post

You running Heaven at 1080p and full settings correct? And is your card a SC edition or regular edition? Just curious because if it is a regular and +110mhz is giving you 1150mhz with boost which is the same boost as mine, but I have my core at +150mhz.

I am at the moment running K-Boost to test a theory another user suggested, but I am still locked at 1150 since booting up the computer under K-Boost and no drops in speed still.


Yes it was at 1080p max settings. One card is SC and the other is normal but it has been flashed with the SC BIOS. I think since my cards are in SLI It takes less mhz to get the same boost but I am not 100% certain on that. When I was running my single non SC card I had to use +150mhz as well.

Anyways mine crashed so I need to figure out whats going on. The funny thing is it does not matter what I set the voltage to on my cards because after a few minutes of running in heaven it will drop the voltage to 1.150. Initially the clocks will be at 1163 but then it will stay at 1150 the rest of the time until of course I crash.
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post #1718 of 28136
Quote:
Originally Posted by FenixPD View Post

I am on my 9th run currently of heaven 4.0 on my SLI Titans.

Both are running 1150 mhz with not one drop yet. Actually the first card increased in temps for a few seconds beyond what it normally does and the fan speed jumped up to accommodate which caused a decrease in voltage a clock speed but it has not done that since. It was only for a few seconds. Not sure what that was but anyways both are running rock solid now at 1150 mhz.


Settings for both cards are as follows:

TDP Set to 106 with it Prioritized
Temp Set to 85C (not linked)
Core Offset at +110Mhz
Memory Set at Default
Fan Set to customer profile but basically fan speed is about 3% lower then the current temp at all times.

GPU Power can vary anywhere from 92% -99%
Mhz @ 1150 Stable and Locked, No Downclocking (Not Using K-Boost)
Max Temp 85C
Max Fan Speed 82%
Max Volts 1.150
GPU Usage 99%

Both Titans have the SC BIOS. One of the cards are actually and SC but the other one I had to flash to get SC speeds.


NEVER MIND I just crashed on my 9th run!!!! ffs this is getting annoying... mad.gif

SLI is a tricky mofo to dial in. When I add in my second card, I am going to start my testing at +120 or even +100 instead of +150. I have SLI'd 480's, 580's, 680's and 690 and other than the 690 I tested each card individualy and no matter what the max core I could achieve, once I sli'd them, I had to drop anywhere from 20-60 off the core to get them to be stable together.

Keep us posted on your results as I have my 2nd card here just testing the 1st one still.
post #1719 of 28136
Quote:
Originally Posted by Mazel View Post

I want to post this image of the Titan on the Hydro Copper block. What strikes me most about this photo is the power %. It stays within 60-70% of the limit. Could temps that low really make such a dramatic effect on power consumption? If so, going with water would free up a ton of headroom.


Keep testing for us, if so I might have to spend even more money.
 
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post #1720 of 28136
Quote:
Originally Posted by Stateless View Post

Ok...Well I did as you instructed and enabled K-Boost. Precision X asked me to reboot and when the desktop loaded and I loaded in Precision, it was showing me that it was boosting to 1149mhz. I then loaded in Unigine and even on the loading screen it was showing me 1150mhz. Unigine is on it's first run and it is still locked at 1150mhz. So from teh moment the desktop came up and I immediately loaded Precision it was showing the same 1150mhz that i have been running at for the last 2 hours or so with no chagnes. I am going to let Unigine run for a little bit to see if something changes, but so far nothing has, I am still locked in at 1150mhz.

I just ran a benchmark run when I increased memory to +100, I am going to let it do 2 passes under K-Boost then re-run a benchmark. If I am correct, the score will be about the same since my mhz for both memory and GPU are locked down and are not moving. Temp is also staying at the same levels too.

Surprising, I may be wrong about your card then. +110 on my SC that is factory clocked 39MHz higher is 1202MHz, I don't understand how +150 is only 1149MHz on a normal titan.

I don't understand these cards at all. It seems like everyone has a drastically difference boost even with the same offsets.
Quote:
Originally Posted by FenixPD View Post

NEVER MIND I just crashed on my 9th run!!!! ffs this is getting annoying... mad.gif

I had to go all the way down to +90 on my SC. ~1110 in Heaven. This is only 50MHz higher than "stock" on the SC version. Hugely disappointing.
Edited by Murlocke - 3/2/13 at 7:31pm
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