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GTX 765M GPU/driver "throttling"

YesNoYes-
Level 8
Just a few notes out of the way- Yes, I tried both the latest ASUS drivers and latest international NVIDIA betas. Yes, I have set power management in NVIDIA control panel to "performance". And yes, I have tried complete restoration of laptop to ASUS factory settings.

I have a problem that once the GPU reachs 65-66C there's a sudden drop of around -20fps while gaming.
I have overclocked (135/800/no voltage change) and tried switching apps between EVGA, ASUS tweak, MSI afterburner etc. and get the same result- once the GPU reaches 65C there's a sudden drop in fps and GPU temp goes down following that. Using monitor tools I can't see any change in MHz or other values except FPS and what's called "fb usage %" (in MSI afterburner) at moment of fps drop. This leads me to believe ASUS (from bios) or NVIDIA (from drivers) set the GPU to "throttle" (it's not really considered throttling to my understanding). I'm positive that even not overclocked once I'll reach 65C the fps will drop from whatever it was to that point. Overclocking just makes it reach 65C faster.
65C is a stupid temp to "throttle" and completely too low and so I'd be happy to know if:
a) Any other people experience this effect?
b) How can I stop this from happening?

Thanks.
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49 REPLIES 49

It was a dumb-ass thing to do, flashing your vbios - which is just my opinion.

I think over time you will learn that taking such a risk with something that expensive - for very little real gain - isn't smart.

It isn't going to make enough of a difference on the upside, and the downside is a huge financial loss for you - or a hassle for Asus (or your laptop manufacturer) if they are nice enough to bail you out and fix it for you.

Would you prefer "Jack-Ass", like the dumb-ass daredevils that take on huge risk for little payoff? 🙂

Don't take it so personally Deamonic, well all do dumb-ass things in our lives 🙂

I am sorry are you deaf? or do you have problem understanding what i and dreamonic trying to explain something to you. my system on stock vbios with stock oc currently breaks 5K on 3dmark11. which BRICKED SYSTEMS USUALLY CAN'T DO..bricked cards systems don't turn on. how many times do i have to say before you understand system runs fine here. increasing voltage causes problems. which we were trying to figure out. you say how can i help before understanding the problem. i just don't understand what are you on.

kingkaan wrote:
I am sorry are you deaf? or do you have problem understanding what i and dreamonic trying to explain something to you. my system on stock vbios with stock oc currently breaks 5K on 3dmark11. which BRICKED SYSTEMS USUALLY CAN'T DO..bricked cards systems don't turn on. how many times do i have to say before you understand system runs fine here. increasing voltage causes problems. which we were trying to figure out. you say how can i help before understanding the problem. i just don't understand what are you on.


kingkaan, I know that you haven't bricked you cards, you have simply done a useless vbios flash, it does nothing since trying to take advantage of it throttles the card and makes it useless, I understand.

I am talking about helping you flash back to stock. I am not going to help do a vbios flash tweak fix. I will help you understand why it is a waste of time, and why it is not a useful hack, and why it isn't going to work well enough to make it worthwhile. That is how I can help here.

The bricking is what happens when people don't get full instructions, don't follow the instructions exactly, or have a slightly different config than the vbios supports and flash with it anyway - some early G750 flashers had that problem - using an old vbios meant for another card.

There are so many potential things that can be different than the machine/config that the developer makes instructions for. You have to read and re-read the instructions, and even look at instructions for other machines/cards to gain the perspective necessary to not make a dumb mistake when doing the flashing.

Different starting system bios or vbios, different OS config, different usb flash drives (wrong size, wrong format), different revs of video cards within the same model, different flash memory areas within the same card models, different flash area formats within the same card models, different timings - you might wait too long, or not long enough and get impatient and stop a process before it is done. I have seen a lot of failure modes. It is sad. Lots of sad people. Very few benefits for all the misery.

noone
Level 8
This issue is the same as I raised in another thread, periodically after sleep my GPU would be limited.

Its only happened twice.

Reboot does not fix?

Dreamonic
Level 12
Hmscott, where do you read the graphics card is screwed up..... no where is that even implied, his system runs fine! We are simply trying to achieve a high overclock like I have done for a lot of people on the forums and their G75's. The G750 is different due to the Boost 2.0, which I've done extensive work arounds with and still no success yet.

You clearly are not understanding something about our posts.

I have done a lot of vBIOS modding and have dealt with over 100 ppl so far via forums with my modified vBIOSes. I'm good at what I do, however support from other members and their systems may shed some light as to why Kaan's is acting the way it is under our conditioned circumstances.

Understand now?

Dreamonic wrote:
Hmscott, where do you read the graphics card is screwed up..... no where is that even implied, his system runs fine! We are simply trying to achieve a high overclock like I have done for a lot of people on the forums and their G75's. The G750 is different due to the Boost 2.0, which I've done extensive work arounds with and still no success yet.

You clearly are not understanding something about our posts.

I have done a lot of vBIOS modding and have dealt with over 100 ppl so far via forums with my modified vBIOSes. I'm good at what I do, however support from other members and their systems may shed some light as to why Kaan's is acting the way it is under our conditioned circumstances.

Understand now?


Actually it is worse than bricking. As you will keep wasting time fiddling with it to try to get around the throttling. The hope that the flashing will end up being worthwhile will waste hours of your time and others trying to make it worthwhile.

I do understand, many years of watching people do the same thing, many not following directions well enough that they brick their cards, others not getting much of a boost even after getting it working, and those that get the best OC's aren't seeing enough boost to make it worthwhile - a couple of FPS at most on average.

It is a nice project, and if you could keep it to yourself and others that can do it right 100% of the time then there wouldn't be so many sad people with bricked video cards wondering what they did wrong, embarrassed enough to only make 1 post back - or none - and then quietly go away never to be heard from again. How many have you seen have this happen?

It isn't worth it.

Dreamonic
Level 12
hmscott wrote:
Sandman007, you are the one mixing up the responses - to whom each statement applies. I respond to each persons quoted text, and don't mix between posts. The "noob "and "untested" stuff response was to Dreamonic.

If it is tested stuff, then why isn't it working? Why is Dreamonic asking people to install a vbios that isn't working as intended?, and if Dreamonic hasn't found a fix to the problem yet and is still searching for a fix, then it isn't working as intended, and is known to not work, the benefit isn't achieved so why ask people to install it?

I call incomplete still in the development stage software "untested" in that it doesn't pass the final test of doing what it is supposed to do. If it passes testing as being complete and delivering the service or benefit promised, then it is complete and "tested".

Pretty simple really. If it doesn't do what it is supposed to do, it isn't ready for release.

When the result is a reliable result that doesn't throttle when put to it's intended use, then it is ready for release, until then it is untested.

If Dreamonic says that he gets 100% speed up, 60 fps after vbios flashing on a 670 vs 30fps before, it is irrelevant and misleading - and doesn't indicate potential performance on a G750 765m, 770m, or a 785m - not even close in comparison - until he does it.

Until then it leads gullible people into believing they can achieve the same result when they hear of the 670 performance boost - that is why he says it - to encourage people to load his incomplete untested vbios flash onto their laptops - and they are taking the financial risk - it will be their loss if something goes wrong, not his.

If Dreamonic wants to buy a G750 and take all the risk of developing a successful vbios for the G750 765m, 770m, or 785m, then let him do it himself, like he did for his 670. That would be cool, I would respect that.

Otherwise, he is playing with other peoples money, and letting them take the risks.



*shakes head* ..hmscott, I finally see what you missed...

I already have done all the modding on Kaan's laptop ALREADY. My post was about my findings with the 765M during the testing we did. I worked 1 on 1 with him the entire time. It's how everyone does this! I simply made a post about what we found and you spit all over it like I'm providing a vBIOS to the public.... get your facts straight junkie.

I have not even said anything about releasing this vBIOS to anyone... you obviously are misinterpreting everything I had said in my original post. My post was informing the members here, what we found during our testing. How can you not comprehend that? It's black and white yet you have to make it all shades of grey for some reason.


I always leave it up to the individual and tell them the risks before hand. Simply testing with Kaan's machine was his choice and my post was about our findings with the 'throttling' issue. Regarding the appropriate place to have posted this in, it may not have been. So we can agree there.

What I want from you is an apology for accusing me of saying things I never said. You're misunderstanding of what I originally said created this mess.

Next time a new thread will be used. You best stay out of it.

Dreamonic wrote:
*shakes head* ..hmscott, I finally see what you missed...

I already have done all the modding on Kaan's laptop ALREADY. My post was about my findings with the 765M during the testing we did. I worked 1 on 1 with him the entire time. It's how everyone does this! I simply made a post about what we found and you spit all over it like I'm providing a vBIOS to the public.... get your facts straight junkie.

I have not even said anything about releasing this vBIOS to anyone... you obviously are misinterpreting everything I had said in my original post. My post was informing the members here, what we found during our testing. How can you not comprehend that? It's black and white yet you have to make it all shades of grey for some reason.


I always leave it up to the individual and tell them the risks before hand. Simply testing with Kaan's machine was his choice and my post was about our findings with the 'throttling' issue. Regarding the appropriate place to have posted this in, it may not have been. So we can agree there.

What I want from you is an apology for accusing me of saying things I never said. You're misunderstanding of what I originally said created this mess.

Next time a new thread will be used. You best stay out of it.


You keep assuming I missed something, I haven't missed anything.

The only thing that was missed was KingKaan hijacking someone's thread and responding to my post to the original thread starter and kingkaan assuming I was responding to him. Everyone else in the thread before kingkaan's post was responding to YesNoYes's original problem, as was I.

Like I said, I don't participate in vbios modder threads, so you need not worry that I will open up the same can of worms there.

Have a nice day 🙂

itsgreekpete
Level 7
Just thought I'd add my 2 cents in here. Thank to Dreamonic my G75vw had it's stock 660m overlock to 1380 on the core and 3000 on the mem, STABLE. All with modded vBios done over the course of a few days, taken step by step and carefully done, as I'm sure is his process with everyone else he has helped here. There are those of us who bought these laptops and not so happy with their performance and wanted a gain. He helped us get that gain. He also helped me with the process of replacing my 660m, to a 670mx and overclocking this card to 1171/2300. vBios mods when done under expertise are not dangerous. hmscott you would be better off butting out of threads when you have nothing useful to add to the conversation. What these fella's were looking for is someone who could help them with their predicament. A way to stop the throttling caused when overclocking the card, whether on a STOCK vbios or a MODDED vbios. They are getting the same result when voltage is increased. Clearly you had nothing to chime in pertaining the matter. See yourself out of this thread now so that maybe those that do have something to add, can do so without your hindrance. They did not ask for someone to post their opinion on whether vBios flashing is something to be done or not done. They want to know what to do to get the flash done, and stable.

noone
Level 8
I've read useful info from all of you but this is why forums get bad reputations (no info, just arguing).

close this and let it die, this thread is no longer a source of information, so don't post in it.