6920G downclocking yet Im not OC'ing :S

The title says it all, the 9500M GS in my Acer 6920G will automatically down clock while I'm playing any game (World in Conflict, Crysis, Bioshock is mostly what I play) , once it hits 65 Celsius, BAM, straight to 2D performance clock speeds.


Any solutions?
I have not overclocked anything, I simply installed Riva tuner to keep track of the temps, and it down clocks once it reaches 65 Celsius degrees, which seems pretty low for a GPU to downclock :S

Please help me, thanks in advance.

 

you may try different drivers from

www.laptopvideo2go.com

this may be a stop-gap measure in response to the recent revelations of NVIDIA chips having major overheating issues

 

Thanks for the fast reply, however as soon as I received the Laptop I installed the drivers 169.04 as Ive heard they were good for gaming, but I experienced the down clocking, so I upgraded to 175.19, no luck... (Both drivers were from laptopvideo2go)

I never tried gaming on the original ACER GPU drivers, I know I can retrieve them from some hidden drive (or so Ive heard) on my laptop, but I'm not going to bother as I don't think upgrading the driver version would fix things...

Any other Ideas guys?

EDIT: I also tried disabling PowerMizer as I thought it may have had something to do with this, no luck...

 

first try uninstalling the RIVA tuner... it may be what is downclocking the GPU...

and the latest ACER version of the drivers should be available @ the ACER-euro site

 

Well, The reason I installed Rivatuner in the first place is because of the sudden down clocking, I installed it AFTER experiencing the Downclocking to keep an eye on the temps, so it cant be Rivatuner that is causing the downclocking.

as for the drivers, Ill give them a try tomorrow and tell you what happens

 

I still get annoying slowdowns in TF2 when gaming on my 6920G - and still very much at a loss for why.
I'll probably switch to the latest Acer video driver if it keeps up.

 

I tried the Acer Drivers for the Geforce, no luck :S

i even uninstalled the last driver fully (Driver cleaner and such)

Any Idea guys?

It simply underclocks after a while of playing, and Im not overclocking or ANYTHING!

Is there a way for me to increase the Temp at which the geforce underclocks?

Because it does so at 65 celcius and that does NOT seem high at all!!!

Someone please help :S

 

i have a feeling that the heat cut-off temp is set in the BIOS of the video card.. i know back in the day i used to modify my NVIDIA GFORCE BIOS with custom settings,,, but i wouldn't have a clue as to how one would go about doing this for a LAPTOP....

and i definately WOULD NOT RECOMMEND IT

what version of the ACER driver are you using??
i may have access to a newer one

 

OK, I can't check whether my GPU is downclocking midgame b/c RivaTuner's on-screen display caused TF2 to flicker green then crash hard.
It still happens - going from 60s to 20s after a while. I'm only assuming it's the GPU downclocking for thermal protection reasons.

 

Bump

still looking for a solution guys

the only one I have in mind is setting the cut off temp higher, even though its unrecommended i don't see another solutions as 65 celcius is SERIOUSLY NOT THAT HOT

 

Try updating BIOS to the latest one.

 

Try using 174.12 or 174.16 drivers. They stopped my downclocking at about 70C. I know they re not the newest drivers in the world, but they seem to solve my problem and give me good all round performance. Also might be worth putting the settings in nv control panel to default.

 

Ill try both your suggestions, thanks

 

BUMP!
Srry to be a pain guys but I really need a solution
Ive tried so many drivers its not even funny
and I also tried updating the Bios, not one difference....any ideas guys? :S

 

this may just be a simple solution to tricky problem but what about some external cooling or when playing the game shut down all the stuff/programmes you are not using in msconfig.
Less stress, less heat.

sorry but i think out loud a lot.
Phil

 

I have the same exact issues as well. I'll be playing TF2 on all the way high and it plays just fine, usually at 40+ FPS but then a few minutes later my FPS goes to trash 10-15FPS. I don't know if it's under clocking the card or not. I'm going to keep the clock graph from rivaTuner running in the background. If I find a solution I'll be sure to post it.

 

Yes, It seems that the GPU is in fact down clocking, and it looks like it's strongly related to temperature.



The beginning of the graph is when I'm in Windows XP. When I'm in game you can see the core-clock and memory clock go up dramatically, but after a few minutes of playing you can see the graph jump down quite a bit. This is about the same time when the core temperature peaks. After that it's just me back in Windows again.

Does anyone know where I can raise the under clocking temperatures?

 

Bladezor, try running RMClock and monitor your CPU when playing TF2.
If it's like mine, TF2 will put such a strain on your processor that it'll overheat, and thus downclock to save itself, which causes the slowdown.
The GPU downclocks b/c it's not being fed as many frames, so it doesn't have to work as hard.

 

I don't see anything to monitor my CPU when playing TF2 with RMClock.

 

Yeah, you're right. I disabled PowerMizer so the GPU isn't underclocking itself anymore yet the CPU is. Any way around this?

 

So you found the monitoring tab? Good.

I'm running into the same problems, and I think it's largely a cooling issue. I've propped up the back of my system with 2 SD card cases under each corner, and improved the airflow in my room, and it's helped. Played for a while today with no slowdown.

For a more permanent solution, there's three I can think of. Undervolt, buy a cooler, or upgrade the CPU to a cooler Penryn (T8xxx/T9xxx).

 

Interesting, when I run TF2 the fans run normal and it gets too hot and underclocks, yet when I run Prime95 the fans run at max speed and the CPU stays at max speed (probably because of the fans running faster). I'm going to run Prime95 for a little longer and do some other tests, tell me if you find anything else out.

There aren't any BIOS options I can really play with .

 

Yeah, I'm not making any progress here, you?

 

Well, it played along just fine today.
No downclocking whatsoever.

No progress here, but I also noted the fan speed issue. Maybe Acer's thermal tables are out of whack or something.

Plus, as I posted in the other thread on this subject, maybe our T5550s are below the recommended system configuration. 1.83 GHz may simply not be fast enough. Derp.

 

I have a T7500 actually.

 

OK, then we are officially running into 6920G cooling issues.
Which BIOS are you running? Use CPU-Z to find the version.

 

I updated to the latest one. V1.10, CPU-Z confirms.

 

Any changes there?
I finally figured out a solution until I get a chance to undervolt this sucker - going down one P-state to 1.66 GHz and a lower voltage.
Performance is affected a teensy bit, but my CPU stays cooler and I can play as much as I want to so far.

 

Well, its been a while, but I think I made some progress

Appereantly, yes, the GPU is downclocking BECAUSE of the CPU downclocking, thus bottlenecking the gpu's speed...


So anyway I thought id make the CPU a bit slower so it wont heat up, I dont know how to underclock so I thought Id unplug the laptop and set it to balance profile, it ran fine, so then I tried Setting it on High preformance, no underclocking, then I made my own profile, and set GPU, CPU, LCD Light, everything, on the highest settings, and testing it unplugged, it ran FINE! As soon as I plugged it in with those same settings, it downclocked!

Beleive it or not, unplugging my laptop stops the Downclocking, and it gives me the same preformance (I checked the CPU and GPU clocks, I used my custom profile to make them both the same settings,plugged in or not ), sooo appereantly downclocking only happens when its plugged in, is there anyway to make the PC think its on battery the entire time as it charges?
I dont see another solution...

 

The GPU is downclocking BECAUSE of the CPU downclocking ?

Why not stop the CPU from downclocking !!

 

Do you really think I havnt...

Ive tried using the Powermizer fix for my GPU, after that rivatuner, force3dpower, after that i discovered its the CPUs problem, I used RM CPU to try to stop the downclocking, no help from that


IVE TRIED EVERYTHING, the only thing that worked was the unplugging of my laptop

 

You stated that making the CPU cooler, helps avoid the GPU downclocking.
So why not assign the CPU the lowest possible voltage, at the highest multiplier, and disable the speedstep.
Or you can edit the GPU's BIOS and undervolt the GPU, to reduce its temps.

 

rightmark cpu clock utility can downclock a cpu. Try with it. I'm currently trying to undervolt it to see if it's enought. Next time I will open a game i planned to look at the cpu throttle because I think it's the problem.

 

Downclocking the CPU won't help, undervolting will.
Basically, reducing the CPU frequency won't help reduce temps much, but reducing the voltages will help to reduce the temps. By reducing the frequency, you would just handicap the CPU's performance.

Try to set the lowest, stable voltage for the highest multiplier.

 

Andy, that's what I did.
I set up RMClock so that each successive multiplier down also involved a voltage drop, thus reducing the heat of my CPU and preventing it from downclocking.
Undervolting is the better alternative, but it means running your CPU out of specifications and can destabilize your system if you're not careful.

 

It'll be better if you assign the max multiplier the lowest possible voltage. This way, you won't lose performance, and will be able to reduce temps. I was successfully able to drop my VID to 0.950V at max multiplier (I am running on 12x, 0.950V continuous)....So, the performance of the GPU won't be bottlenecked by the decrease in frequency of the CPU. And at the same time the CPU and GPU temps would remain low.
View attachment 23484

I guess you guys would be better off modifying the NVIDIA BIOS (using Nibitor) to undervolt the GPU.

And some guys here have played around with the 8600M GT....

 

Andy, you forgot to mention that undervolting will destabilize your system unless you do it properly.
Read the guide, test for stability, then go have fun.

 

My t5750 now have 12°C less temp unly be undervolting it. This is really the first thing you should try.

 

Thats what I said, find the lowest possible voltage (not necessarily 0.950V like mine), and I did mention I was successfully able to drop the VID, after 16 hours and 4 passes of Orthos stressing.

If you notice the graph for the frequency, throttle, VID and FID in the above attachment, there are no hiccups, and my system is perfectly stable. So, you would have to find the minimum possible voltage for the highest multiplier, to get the best of high performance and low temps.

(My temps are high, because there is no thermal compound on the heat sink, and one of my case screws are jammed, and I can't apply any ATM. )

 

Hihi,

TehSuigi or Andy, it sounds you found a solution.. Is it?
Can you add my on MSN? I really wanna contact you about this Problem.

EMAIL: [email protected]

 

It's not so much a solution as it is a patch, really.
If Acer did their homework and realized that the Core 2 Duos aren't supposed to downclock in the 60s, we wouldn't have to undervolt the CPU.

 

Surely a bios update could fix this?

 

I think so, but from what I can tell, the latest BIOS updates for the 6920G don't cover any ACPI or thermal details.

 

have you guys tried staying with your stock drivers? With my stock drivers I never got random downclocks. Right now I have 180.70 Dox's drivers and I never get random downclocks try Dox's 180.70 driver.

 

I haven't had ANY downclocks (that weren't caused by CPU overheats) on 174.51 (stock), 175.61 (Acer Euro), or 176.26 (Acer Euro for different model).
Then again, all of those are WHQL-signed. Maybe that's why?