M15x - Nvidia 670M Throttling

I installed a Dell 670M card from Eurocom along with their included drivers. The performance is fine but I get intermittent throttling (5 minutes of normal game play, 30 seconds of throttling). The funny thing is, the throttling seems to happen when the GPU reaches 70 degrees but I was under the impression that 70 is an acceptable temperature.

I have included 2 screenshots of system monitoring. Any input would be greatly appreciated.

 

i have no experience with 6xx cards, but are you overclocking p1 because you card can't access p0? if so your best bet would be to underclock p1 further to find a nice sweet spot, and/or overclock p12 to help the with the bad throttle, but p12 wont OC much so concentrate on p1 UC

 

670m = 570m (fermi) slightly overclocked. It might be that these cards are real powersinks (and use more than the advertised TDP 75W..) thus that would explain why it throttles at relative low temps.

 

I haven't messed with the clock speeds at all but if you look at the first pic, Nvidia Inspector says I'm at p0. My card seems to be at p1 when idle and I've never seen any states besides p1 and p0.

 

Have you changed the power plan and made sure the stealth mode is not on?

 

I see. Should I go for a 240W power adapter?

Yeah I've checked all of that. When I turn stealth mode on, the lag is constant.

 

I think that you might be lacking power... What drivers are you using?

 

undervolting should be your best bet

 

yes, and 2ndly undervolt as Mexic00ls stats; you have to try to cut down on Watts. With our power enveloppe of 150W.. 240W psu might provide some relief.
Let us know whats cooking. My next little project is going to be 680m/kepler, a worthy (and challenging) upgrade for my 560m.
I might need some advice too:thumbsup:

 

Thanks for all the tips guys. I have a 240W psu coming Monday and I'll be sure to report back. Meanwhile, what voltage should I use? The default is 0.85V. Should I adjust clock speeds as well?

As an aside, is it worth noting that the plug where the power adapter goes into the laptop gets very hot during gaming?

 

I'm currently using 306.14 made by a guy at Eurocom (that's where I got the card). Before that, I was using a older driver from online and also got throttling.

 

Did the 240W psu help? I've used the modded bios before but not with a 240W adapter - I'm getting one to try on my machine which still throttles with far-cry 3 even though I'm only using a lowly 720QM and 260M..

Actually it only throttles when I overclock the gpu but still

 

do I also took two weeks with my new 670 M and also I have the same problems when passing from 70ºc have stoppages in games, I have 150W PSU be if buying a top of a 240W M17x solve the problem?... is there any way to fix the problem?
I using the last nvidia drivers 310.70, stealth mode are off and the power plan are put on hight power.

 

This is a very common issue with the M15x. i am having the same issues with my 7970m. The motherboard in these laptops cant handle the power draw of a 920xm and a high end gpu. The amd videcards seem to handle this better this is why most m15x owners go AMD. I would have preferred a gtx 680m but the 7970m is far more stable. Svl7 is the guy you need to talk to. He has run every videocard you can think of in his M15x. He is usually found over at tech inferno.
This thread may help you but its a bit dated as noone has had a ton of lock with nvidia in m15x's.
[Guide] M15x with Nvidia 470m
If you use throttlestop try booting without it and running at stock CPU. This is the only way I can keep my M15x from throttling my 7970m.
Everyone that has run into this also says the 240w adapter does not make a difference. Only helps the adapter to last longer. Its the motherboard circuits that are holding us back.

 

Not so much the power draw of 920xm but the M15x only officially supports 75W tdp videocards. Thus the circuits have been designed such that with additional power demand above 75W the GPU is throttled back.

There is a little headroom however when the cpu is pushed hard the motherboard circuitry will throttle the GPU back aggressively until it consumes as much or less than it's 75W official capacity.

The best solution therefore is to bring your GPU; Here the 670M and undervolt it to the point where even under heavy load it will not consume more than 75W. This means that even if the 920xm is pushed hard (almost to it's limit with a high OC) the card won't throttle period!c

On the 7970M this requires a 5-10% downclock in core clock speeds. However it is worth it!

 

ummm how to undervolt the 670m?

 

There are no tools to change the 3D clock voltage? I thought nvidia had better native OC tool support and drivers than AMD so I assumed it was possible.

The 670M is the 580M rebranded basically isn't it? The 580M consumes roughly same power as the 7970M. In the M15x to stop throttling with a decent CPU OC you MUST undervolt the GPU.

Applies to 6990M, 580M, 670M and 7970M.

 

670M is the rebranded 570M.
675M = 580M.

 

well.... i buy the new 240w PSU original Dell and continue the vga Throttling problems... i try to run MSI Afterburner for undervol my 670m and the option of manage the voltage (core voltage) are allways off (i add a pic).

 

Any can help me?

Enviado desde mi GT-P6800 usando Tapatalk 2

 

I think the only way to change the core voltage is by vbios mod. Ask svl7 on a how to.

 

Changing the power brick doesn't change how much power the motherboard can use unfortunately. I have a 6970m, and even that gets throttle problems.