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[Official] Nvidia GeForce GTX TITAN Owners' club - Page 655

post #6541 of 28136
Quote:
Originally Posted by Juggalo23451 View Post

Nvidia implemented this and there is no fix.
This is why you see alot of people bios flashing to by pass this issue.

I know about voltage limits, im ok with that. But this is what confuses me.

I'm pretty old school when it comes to overclocking GPUs.

In precision I set Power to 106% , Target temp 90C and a GPU offset of just +100.

Running 3D Mark 11, I checked the log files afterwards. It goes 1097 , 1071, 1084 and randomly bottoms down to 864ish. (Not sure if this is between tests or it runs some tests slower for whatever reason.)

The temps don't seem to correlate to the dips. Even though I set a target of 90, the hottest it got was 79.

Is that because an offset of just +100 isn't pushing the limit?

If I just increased the target temp to 90C and power 106% , the clocks don't improve.

My card boosts to 1006 stock anyway, it doesn't change with 90C target.

I thought it was meant to increase clocks just going by max temp? Confused.
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post #6542 of 28136
Quote:
Originally Posted by Juggalo23451 View Post

Nvidia implemented this and there is no fix.
This is why you see alot of people bios flashing to by pass this issue.

Pretty sure even with Naennon rom, mine drops 2 speed bins at 79C. I had to use a fan curve to target 75~76C
post #6543 of 28136
Quote:
Originally Posted by Arthur Hucksake View Post

I know about voltage limits, im ok with that. But this is what confuses me.

I'm pretty old school when it comes to overclocking GPUs.

In precision I set Power to 106% , Target temp 90C and a GPU offset of just +100.

Running 3D Mark 11, I checked the log files afterwards. It goes 1097 , 1071, 1084 and randomly bottoms down to 864ish. (Not sure if this is between tests or it runs some tests slower for whatever reason.)

The temps don't seem to correlate to the dips. Even though I set a target of 90, the hottest it got was 79.

Is that because an offset of just +100 isn't pushing the limit?

If I just increased the target temp to 90C and power 106% , the clocks don't improve.

My card boosts to 1006 stock anyway, it doesn't change with 90C target.

I thought it was meant to increase clocks just going by max temp? Confused.

In 3dmark11 its power target that causes throttling in my experience. Flashing to a modded BIOS with a higher power target (I'm using 12% right now) cures most of the throttling for me...
post #6544 of 28136
Quote:
Originally Posted by Arthur Hucksake View Post

I know about voltage limits, im ok with that. But this is what confuses me.

I'm pretty old school when it comes to overclocking GPUs.

In precision I set Power to 106% , Target temp 90C and a GPU offset of just +100.

Running 3D Mark 11, I checked the log files afterwards. It goes 1097 , 1071, 1084 and randomly bottoms down to 864ish. (Not sure if this is between tests or it runs some tests slower for whatever reason.)

The temps don't seem to correlate to the dips. Even though I set a target of 90, the hottest it got was 79.

Is that because an offset of just +100 isn't pushing the limit?

If I just increased the target temp to 90C and power 106% , the clocks don't improve.

My card boosts to 1006 stock anyway, it doesn't change with 90C target.

I thought it was meant to increase clocks just going by max temp? Confused.

We have very similar Titans, it seems.

Those short dips to 860's seem to be power savings kicking in too eagerly. I changed the Nvidia control panel's power management mode to prefer maximum perfomance and those dips seem to have been eliminated. The rest of the throttling remains, though. mad.gif

Personally, I'd take a stable (even if lower) overclock over this Throttle 2.0 crap any day. Honestly, that's what Nvidia should call this "boost" if they had any decency. Otherwise an absolutely brilliant GPU.
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post #6545 of 28136
Also I find that if you set your voltage too low in bios it will throttle sooner even if you're not near 80C. Have not tried this since installing waterblocks though. At 1.2V the 1200MHz clock sticks until the GPU reaches 80C. With liquid cooling that cannot happen unless something is really wrong.
post #6546 of 28136
Quote:
Originally Posted by specopsFI View Post

We have very similar Titans, it seems.

Those short dips to 860's seem to be power savings kicking in too eagerly. I changed the Nvidia control panel's power management mode to prefer maximum perfomance and those dips seem to have been eliminated. The rest of the throttling remains, though. mad.gif

Personally, I'd take a stable (even if lower) overclock over this Throttle 2.0 crap any day. Honestly, that's what Nvidia should call this "boost" if they had any decency. Otherwise an absolutely brilliant GPU.

Logically I would think this jumping about of the clocks would cause some sort of stutter crap to occur and cause frame latency issues, but it seems to have the opposite effect.

Maybe they are gunning for the end user experience over number crunching (AMD like their numbers).
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post #6547 of 28136
Quote:
Originally Posted by CyBorg807 View Post

So I noticed something off about one of my Titans, I have tried various OC settings and no matter what one of my SC Titans always throttles at 80C as if the temp target was set to that. My other Titan is good right up until 94C though. I am still using the Stock SC BIOS on both of them.

Not happening with my SC. Strange...

(stock bios, power to 106%, temp to 85C since when running it reaches a couple degrees above 80C, i have recorded some sessions if you want, i can post them)
post #6548 of 28136
I've never seen mine go above 80C. :-(
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post #6549 of 28136
Quote:
Originally Posted by specopsFI View Post

We have very similar Titans, it seems.

Those short dips to 860's seem to be power savings kicking in too eagerly. I changed the Nvidia control panel's power management mode to prefer maximum perfomance and those dips seem to have been eliminated. The rest of the throttling remains, though. mad.gif

Personally, I'd take a stable (even if lower) overclock over this Throttle 2.0 crap any day. Honestly, that's what Nvidia should call this "boost" if they had any decency. Otherwise an absolutely brilliant GPU.

I like this suggestion; it's catchy and appropriate. We should call it Throttle 2.0. biggrin.gif
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post #6550 of 28136
So it took longer to get this new build up and running than I anticipated (the supposedly infallible AX-1200 up and died on me), but I finally got everything installed and OC'd. First, a shot of my two new beauties.
LL
Turned out that MSI was the most plentiful card out here in Japan... and by plentiful I mean that it took 3 weeks of f5'ing and well over the MSRP to secure them tongue.gif

Based on the feedback in this thread, I flashed the Naennon BIOS with an edit that moved the default power up to 285W. As it turns out my cards will only do 1150/6350 @1.215V and at those settings in Valley they were consistently drawing 280-285W (fairly low ASIC qualities of 70% and 68.5%). But while they do guzzle power... man are these cards fast. I know Majin SSJ Eric ran some detail benches, but here is a comparison at 2560x1600 of my Titans to my old 7970 CFX system

Titan SLI @ 1150/6350 -- Valley Ultra 2560x1600 4xAA
LL

7970 CFX @1125/1575 Valley Ultra 2560x1600 4xAA
LL

An impressive 58% improvement and while I didn't have the best clocking 7970s it is clear that Titan really spreads it wings at larger resolutions.

Furthermore, not to bring the whole frame time discussion into this thread, but I noticed that the Titans were much smoother than the 7970's in Valley. And while I don't plan on turning off Vsync while gaming, SLI has come a long way the last few years (last SLI system was with the GTX 285). Throw in the ability to use SGSSAA (gives unbelievable IQ if you have the GPU power to spare) and IMO Titan is worth every penny.

Now back to playing with my new toys. thumbsupsmiley.png
Edited by JCPUser - 4/6/13 at 10:37am
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