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[Official] NVIDIA GTX 690 Owners Club - Page 484

post #4831 of 5564
Have anyone tried the voltage control with the lastest MSI ab? I saw that you can give 1.3 of voltage at the gpus
post #4832 of 5564
yes, it works!

Ive tested on mine and is working fine...altought i have a strange situation, on benchmarks like Valley GPU 1 doesnt reach the max boost speed... GPU 2 is allways at maximum speed. Temps are OK, below 55C.

But if i play games like BF3, Crysis 3 or Metro LL both GPUs run at max speed boost!

Any ideas?
post #4833 of 5564
Quote:
Originally Posted by PinzaC55 View Post

On ebay recently (not mine nor did I bid) There was another one a week later "Buy It Now" at £450.

That is amazing...
I'll definitely have to have a look out for one for around that price.
post #4834 of 5564
Thought people might be interested in these over on eBay.
I don't have the money for one, but someone here might be looking for an SLi upgrade.
http://www.ebay.co.uk/itm/EVGA-NVIDIA-GTX-690-4-GB-2-Year-EVGA-Warranty-/321189290067?pt=PCC_Video_TV_Cards&hash=item4ac85fa053
post #4835 of 5564
Quote:
Originally Posted by FiShBuRn View Post

yes, it works!

Ive tested on mine and is working fine...altought i have a strange situation, on benchmarks like Valley GPU 1 doesnt reach the max boost speed... GPU 2 is allways at maximum speed. Temps are OK, below 55C.

But if i play games like BF3, Crysis 3 or Metro LL both GPUs run at max speed boost!

Any ideas?

yeah, there is probably a power throttle somewhere, and no one has been able to put custom bios on a 690 successfully, except for kingpin and a guy name grubio or something.
take off precision and kboost,and don't use it with ab. water helps with cooling.
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post #4836 of 5564
Im not using custom bios, only softmod via MSI AB Beta14 and my card is under WC.
post #4837 of 5564
each Wafer Yield is specific and also each game / software.

My gtx 690 will not peform as yours, maybe mine will boost maybe higher, maybe it's yours because mine needs 1.175V for running @ 1200 mhz, and your better "yielded" card only need 1.125 to maintain stability at 1200 mhz ....

Got the same issue on the strongest workload with the gtx 690 when overvolting it :

you have to try different settings, to found out the best ratio between gpu clock vs memory clock vs voltage vs TDP threshold

the only way to prevent gpu0 (or 1) throlling back is to lower your voltage .... your gpu takes more "juice" assuming that it will "blow" easily your TDP limit and power target limit will start to kick in...

So obviously, doing this, power target limit will be not surpassed
: gpu will not start throlling.

you have to run the application like HEAVEN 4.0 or CRYSIS 3 and found the lowest vcore needed to maintain the same exact core clock on both gpu's, meanwhile maintaining a good temperature on both cores and not overpassing your power target limit you already set.

i think you should enjoy better performance with the two gpu's running a 1215 mhz without throlling, rather than the 1st gpu running still at 1247mhz and the second one fluctuating betwen 1084 mhz ( 70% of the time ) and 1247mhz (3 % of the time) if you know what i mean...

gtx 690 is using a specific over current protection (OCP), the gpu boost feature controls each gpu, calculating not the total consumption of the gtx 690, but for each gpu independently.

Power states are calculated directly on the moffsets and VRM circuitry ( GPU0/GPU1/MEM1/MEM2/PLX switch) and the GFX

The next "extreme" action you can do, it's to totally disable the power target limit, this "virtual threshold" done by Nvida (adding 300% PT threshold in bios ), but don't worry gtx 690 has differents safe mechanisms to prevent frying it biggrin.gif

give a try !

Greetings from Paris, Sun is hot like ladies : D

i apologize for my poor english, it was really hard to translate geek and technical stuff in french into english one .
Edited by lascar - 8/21/13 at 6:57am
post #4838 of 5564
yeah, power limit is the problem...too bad then, this softmod of AB doesnt bring me more performance...
Edited by FiShBuRn - 8/22/13 at 1:31am
post #4839 of 5564
so try to disable the PT target , set it to +300 % in KGb software, softmod your bios one more time and retry .

Your hardware is under WC so i think it's worth it .

My point of view.

bon courage l'ami.

Cheers.
post #4840 of 5564
Quote:
Originally Posted by lascar View Post

so try to disable the PT target , set it to +300 % in KGb software, softmod your bios one more time and retry .

Your hardware is under WC so i think it's worth it .

My point of view.

bon courage l'ami.

Cheers.

I got serious throttling issues in Valley too from GPU1. GPU2 seems perfectly fine. Hmm.
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