jblanc03
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Hello,
GPU SETUP:
TITAN X SC 3WAY-SLI WaterCooled.
I am having a weird issue.
I am running Precision X 16 latest version. with 3way sli Titan X
when i enable Kboost, my cards show their max Kboost Clocks for example GPU1 = 1341 GPU2= 1265 GPU3= 1328 however, when i game i can see that they ALL revert back to 1265mhz each, and stay that way!
This happens no mater what game i play!
what could be going on? i just installed these cards yesterday and did a clean driver install of 350.12 drivers!
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CoercionShaman
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 06:17:56
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Does Kboost do something different? In SLI, my cards have all always clocked down to the slowest card's speed when being utilized because they have to match to work properly.
What use is knowledge if there is no understanding?~Stobaeus
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jblanc03
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 06:44:15
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what???
why would it do that?!!
i used to have 3 gtx 680 classifieds, and when kboost is enabled, each card would clock to its maximum kboost clock speed and stay that way regardless of the other cards speed!!
this is unacceptable functionality!
kboost is supposed to boost your card's speed and stay constant!
So it looks as though my cards are down-clocking to match my GPU 2 speed which is 1265mhz!
please tell me thats not true!
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the_Scarlet_one
formerly Scarlet-tech
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 06:58:23
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That is an Nvidia feature, so you may be able to find more info over there.
I have always heard that it runs St the lowest cards boost, so that is nothing new.
Also, why do you need kboost with 3 titan's? What resolution are you playing at that would ever require kboost?
Kboost is meant for retro style games that can't tax the gpu properly, so you enable it to keep the clocks boosted while in low taxing spots. If you are enabling it for every single game, you aren't really getting anything out of it as it puts the card under load to keep the clocks. At most you will lose a minor amount of performance.
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jblanc03
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 07:09:48
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while i am waiting on my 4k monitor,
i am currently gaming at 1080p. I am not too happy with the performance at this resolution. there are games that i thought would really bennefit from the extra 12gb Memory bandwidth, but its not what i expected.
I have even tried using DSR (Dynamic Super Resolution) to force downsampling to 4k on 1080p resolution. This would make the image look cleaner with less aliasing, but performance (FPS) would not improve!
So when i see how Kboost behaves on these cards i am dissapointed.
I gues i am going to have to overclock or somehow disable this nvidia feature so i can take each of my cards to their individual MAX CLOCK SPEEDS and stay constant.
I really hate my GPU automatically changing itself (voltage, Clocks, Power) on its own when i am gaming!
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Avenger411
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 07:26:54
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Hey,
Everytime i see one of your comments you are dissapointed. Maybe next time you invest 4.5k$ into graphics card you should do some research before actually buying and then feeling sad about it. Sincerely if you compare 1265 vs 1341mhz it won't give you a 30fps boost. So it's useless to expect as such. You seem to forget that SLi profiles play a big part in multi-card setups. Depending on games, your setup might work flawlessly or NOT, every game engine is different. And if your gpu is used to 80%, your card may downclock indeed, why would it need to have a higher clock if it's not even used to 100% ?. This is what happens with SLi setups and the problem is more annoying the more cards you add. It all boils down to scaling. So calm down, stop being dissapointed and enjoy your setup. From what i can see it's quite a beast.
Max
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mstoll23
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 08:52:48
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From what I understand about Kboost is that it was really intended for single GPU setups, but I suppose it wouldn't hurt to try it in SLI.
I also know from my experience that GPU Boost 2.0 is temperature dependent on how much it affects your clock speed. For example, if you reach a certain temperature target, GPU boost 2.0 will throttle back to your cards normal boost speeds. My card does this with kboost on or off.
My Titan X SC will reach clock speeds of 1350mhz idle or in games at full load with kboost on. Once it hits about 73c, it will clock down to 1250mhz. However, you are running water cooling so this theory is probably moot since you are never going to hit 50c, let alone "air cooled" temps.
I'm guessing this is a quirk of kboost in an SLI set-up, but ultimately it doesn't matter. With 3 titan x's you have SO much horsepower that a 100mhz dip in all 3 cards is only going to affect you if you are trying to make it to the 3dmark leaderboards. If that is your goal.......... I wish you the best of luck. :D
SpecsAsus Z97-Pro Moboi7 4790k clocked at 4.7ghz using tower cooler32gb 1600mhz ddr3 ramEVGA Titan X SC240gb SSDPB287Q MonitorPC Power & Cooling Silencer 750 Quad - Copper 750W(825W Peak)
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flexy123
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 09:00:11
(permalink)
>>
what could be going on?
>>
Those cards have a zillion ways where they COULD throttle.
* Power Limit
* Voltage Limit
* TDP Limits
* Temperatures
* Probably some other limits coded into the BIOS or hardware itself
"K Boost is supposed to boost your card's speed" <--- I don't think this is correct at all. What KBoost does is force constant voltage. However it doesn't disable boost per se and there still could be reasons that your card "boosts" down as I understand it. Effectively making a card stop throttling needs MORE than just K-boost. It needs increased power target/limit...if Afterburner slider is not enough than a modded BIOS with higher limits. It also needs mods to prevent voltage limiting. Say if my card has a max. voltage of 1.212V and I feed it 1.212V...what do you think it does? Right! It throttles due to "voltage limit"....
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bcavnaugh
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 09:05:38
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Maybe part of the problem is the OP only has 16GB of Computer Memory or less. Or his CPU is an old one and it is bottlenecking the 3 Titan X Graphics Cards. Also faking out with "DSR (Dynamic Super Resolution)" may also be bottlenecking.
post edited by bcavnaugh - 2015/05/08 09:09:02
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jblanc03
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 09:08:24
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your right i should not be complaining.
i just was hoping a card of this magnitude would destroy FPS in games!! but it turns out the DAMN SLI Proiles and Optimization in certain games sucks or there is no way to improve it.
anyway
i am not reaching by any means any power/voltage/temperature limits so thats not the case.
I plan to overvolt these cards and overclock them to their max in the best way possible and have constant clocks and voltage applied.
I just want what i got with the 3 gtx 680 classifieds i use to have. They kboost and overclocked like champs and stayed at the max clocks all the time unless i deemed otherwise.
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jblanc03
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 09:10:24
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bcavnaugh
Maybe part of the problem is the OP only has 16GB of Computer Memory or less.
Or his CPU is an old one and it is bottlenecking the 3 Titan X Graphics Cards.
Also faking out with "DSR (Dynamic Super Resolution)" may also be bottlenecking.
Ok i really need to update my rig specs here are my real actual specs; CPU i73960x 4.5ghz RAM: 32GB Corsair Dominator GT 2133mhz GPU 3way Titan X SC SLI Everything watercooled
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bcavnaugh
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 09:18:12
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jblanc03
bcavnaugh
Maybe part of the problem is the OP only has 16GB of Computer Memory or less.
Or his CPU is an old one and it is bottlenecking the 3 Titan X Graphics Cards.
Also faking out with "DSR (Dynamic Super Resolution)" may also be bottlenecking.
Ok i really need to update my rig specs
here are my real actual specs;
CPU i73960x 4.5ghz
RAM: 32GB Corsair Dominator GT 2133mhz
GPU 3way Titan X SC SLI
Everything watercooled
Yes that would help as your  show nothing. What Make and Model is your Monitor? I also would down clock your CPU to 4.2 or 4.3 GHz and retest. I found with 3 or 4 GPUs on the i7-3960X/70X it can improve gamming. Even your Titan X's are Water Cooled? I would really like to see some images of your Rig, maybe you can update your  with some photos and updated hardware. Also run some benchmarks so that we can start comparing real would test and not the Store Bought ones. I would run them with K-Boost Disabled and then with K-Boost Enabled to see have different they really are.
post edited by bcavnaugh - 2015/05/08 09:22:45
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Vipergtspa
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 09:37:18
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To get all 3 card's matching you can unlink them with PX (chain logo at the bottom right) then add the difference on the lower boosting card's.
I had 2 cards that ran at different clock speeds, 1 at 1430 boost the other at 1455. By adding +25 on the lower card and using PX to have them not linked together would give me both GPU's running at 1455GHz boost stock.
Other option would be to use Nvflash and use a custom bios on all three card's.
Intel i7-8700K 5.1GHz 1.344V-Asus ROG Maximus X Formula Z370-EVGA GTX 1080 Ti FE 2100MHz/6496MHz -16GB Corsair Dominator Platinum@3200Mhz-EVGA SuperNOVA 1000 T2-EK Custom Water Loop-2 Samsung 850 EVO 500GB SSD -1 Samsung 970 Pro 500GB M.2-Phantek Enthoo Luxe Tempered Glass-Windows 10 64bit-Dell S2716DG 27" G-Sync 2560X1440-Klipsch 2.1 Pro Media Speakers 
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Sajin
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 09:38:58
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Vipergtspa
To get all 3 card's matching you can unlink them with PX (chain logo at the bottom right) then add the difference on the lower boosting card's.
I had 2 cards that ran at different clock speeds, 1 at 1430 boost the other at 1455. By adding +25 on the lower card and using PX to have them not linked together would give me both GPU's running at 1455GHz boost stock.
Other option would be to use Nvflash and use a custom bios on all three card's.
+1
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Avenger411
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 10:03:34
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Hey,
Did you try a custom bios ? I wouldn't recommend it though. Go take a little peak at the overclockers forums,some of the guys over there have got some nice results you might like ;)
Max
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jblanc03
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Re: Titan X kboost clocks dont stay at maximum when gaming!
2015/05/08 11:18:46
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bcavnaugh
jblanc03
bcavnaugh
Maybe part of the problem is the OP only has 16GB of Computer Memory or less.
Or his CPU is an old one and it is bottlenecking the 3 Titan X Graphics Cards.
Also faking out with "DSR (Dynamic Super Resolution)" may also be bottlenecking.
Ok i really need to update my rig specs
here are my real actual specs;
CPU i73960x 4.5ghz
RAM: 32GB Corsair Dominator GT 2133mhz
GPU 3way Titan X SC SLI
Everything watercooled
Yes that would help as your show nothing.
What Make and Model is your Monitor?
I also would down clock your CPU to 4.2 or 4.3 GHz and retest.
I found with 3 or 4 GPUs on the i7-3960X/70X it can improve gamming.
Even your Titan X's are Water Cooled?
I would really like to see some images of your Rig, maybe you can update your with some photos and updated hardware.
Also run some benchmarks so that we can start comparing real would test and not the Store Bought ones.
I would run them with K-Boost Disabled and then with K-Boost Enabled to see have different they really are.
http://www.overclock.net/lists/display/view/id/3916316 i need to update the pictures showing my Titan x's and i changed the GPU loop and it looks and performs MUCH better than what you will see in the pictures
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