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9500M GS Performance Loss Problem


Guest Anml

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Hey guys,

Its been a while since im having this problem (maybe a month or so, maybe more) but its been getting worse lately,

the problem consists of, basically, a huge loss of performance while gaming (tested with Dragon Age: Origins and Warcraft III)

to the point where its almost unplayable (with Dragon Age its a lot worse, i figure because its a more demanding game graphic wise).

Anyway, this happens after a while (in Dragon Age it occurs really fast, like 6-10 mins and in Warcraft it can take more, maybe like 30-50 mins)

and i have tested a lot and searched a lot to see if i could find the reason, what most people seem to suggest in similar situations is

overheating. I ran a lot of tests and o dont think thats the problem, first of all because it usually happens at 69-71 degrees (usually at 71),

which is pretty low, and also i ran some tests with FurMark (http://www.ozone3d.net/benchmarks/fur/) and i was able to get the GPU to 77 without

any performance loss (i might try going for more time latter to see if it happens, but to me that indicates that its not a temperature issue, and

if it is a temperature issue it seems it is game related).

Trying to solve the problems i already changed the drivers several times (using driver sweeper to do the reinstalls, currently have 195.62)

i looked into the Powermizer thing, i messed around with RivaTuner doing this "The fix that worked for me was going into RivaTuners power user tab and setting the value to 1 for Rivatuner\NVIDIA\Overclocking\EnableLowPower3dControl and Rivatuner\NVIDIA\Overclocking\EnablePerfLevelForcing. Then i went back to the overclocking tab,and activated the now revealed "Force Constant Performance Level" command to performance 3D. This completely and absolutely solved the slowdown problem I was having." which i got from this topic and some other small

things messing around with configurations in general (like the nvidia control panel and RivaTuner itself) but it got me nowhere.

Some odd thing that i found out is that the Core Clock and the Memory Clock can stay up in the maximum but when the game starts losing performance the

GPU Load just goes down the hill and i start having a horrible performance.

Some additional info:

- Im using GPU-Z and HW Monitor to check temps and other stuff.

- Im using RM Clock already to get CPU performance since i had a problema with that in the past.

- GPU temp is 56-58 on idle.

- System specs:

Acer 6920g:

Core 2 Duo T5550

Intel® Crestline PM965 Chipset

3GB RAM DDR2 667 MHz

nVidia GeForce 9500M GS 512MB GDDR2

Windows Vista Home Premium 32bits

- Some short GPU-Z logs of the moment when the performance drops:

On Warcraft III:

Date , GPU Core Clock [MHz] , GPU Memory Clock [MHz] , GPU Shader Clock [MHz] , GPU Temperature [°C] , Memory Used [MB] , GPU Load [%]

2010-02-10 21:55:25 , 475.0 , 400.0 , 950.0 , 68.0 , 101 , 24

2010-02-10 21:55:26 , 475.0 , 400.0 , 950.0 , 67.0 , 101 , 35

2010-02-10 21:55:27 , 475.0 , 400.0 , 950.0 , 67.0 , 101 , 23

2010-02-10 21:55:28 , 475.0 , 400.0 , 950.0 , 67.0 , 101 , 19

2010-02-10 21:55:29 , 475.0 , 400.0 , 950.0 , 67.0 , 101 , 19

2010-02-10 21:55:30 , 475.0 , 400.0 , 950.0 , 67.0 , 101 , 25

2010-02-10 21:55:31 , 475.0 , 400.0 , 950.0 , 66.0 , 101 , 19

2010-02-10 21:55:32 , 475.0 , 400.0 , 950.0 , 66.0 , 96 , 4

2010-02-10 21:55:33 , 475.0 , 400.0 , 950.0 , 66.0 , 95 , 1

On Dragon Age:

Date , GPU Core Clock [MHz] , GPU Memory Clock [MHz] , GPU Shader Clock [MHz] , GPU Temperature [°C] , Memory Used [MB] , GPU Load [%]

2010-02-10 14:46:18 , 475.0 , 400.0 , 950.0 , 71.0 , 125 , 64

2010-02-10 14:46:19 , 475.0 , 400.0 , 950.0 , 71.0 , 125 , 75

2010-02-10 14:46:20 , 475.0 , 400.0 , 950.0 , 71.0 , 125 , 77

2010-02-10 14:46:21 , 475.0 , 400.0 , 950.0 , 71.0 , 125 , 77

2010-02-10 14:46:22 , 475.0 , 400.0 , 950.0 , 71.0 , 125 , 65

2010-02-10 14:46:23 , 475.0 , 400.0 , 950.0 , 69.0 , 125 , 41

2010-02-10 14:46:24 , 475.0 , 400.0 , 950.0 , 69.0 , 125 , 3

2010-02-10 14:46:25 , 475.0 , 400.0 , 950.0 , 68.0 , 125 , 7

2010-02-10 14:46:26 , 475.0 , 400.0 , 950.0 , 69.0 , 125 , 7

2010-02-10 14:46:27 , 475.0 , 400.0 , 950.0 , 69.0 , 125 , 12

2010-02-10 14:46:28 , 475.0 , 400.0 , 950.0 , 68.0 , 125 , 15

On FurMark (which didnt drop):

Date , GPU Core Clock [MHz] , GPU Memory Clock [MHz] , GPU Shader Clock [MHz] , GPU Temperature [°C] , Memory Used [MB] , GPU Load [%]

2010-02-11 13:40:32 , 475.0 , 400.0 , 950.0 , 77.0 , 65 , 99

2010-02-11 13:40:33 , 475.0 , 400.0 , 950.0 , 77.0 , 65 , 99

2010-02-11 13:40:35 , 475.0 , 400.0 , 950.0 , 77.0 , 65 , 99

2010-02-11 13:40:36 , 475.0 , 400.0 , 950.0 , 77.0 , 65 , 99

2010-02-11 13:40:37 , 475.0 , 400.0 , 950.0 , 77.0 , 65 , 99

2010-02-11 13:40:38 , 475.0 , 400.0 , 950.0 , 77.0 , 65 , 99

2010-02-11 13:40:39 , 475.0 , 400.0 , 950.0 , 77.0 , 65 , 99

Anyway thats just to show that its not the clocks that go down its the GPU Load and i dont even know how can that happen or why, and its probably

not a temperature issue since on FurMark it was hotter and it didnt lose performace, and in both cases it was not even that hot.

So, thanks for any possible help and sorry if i made any mistakes with the english, its not that good.

Also i might have forgotten some stuff i did, its been a while since im on this, but i think i covered the important points.

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I did some testing and the higher the temp got was 58. Also the performance seems to drop at random CPU temps, while

i was monitoring i saw it happen as low as 49 ºC on the CPU cores.

Just as additional info I used HW Monitor to see the temps.

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Hey, that registry thing didnt work BUT on that topic there is a link to this -> http://forum.notebookreview.com/showthread.php?t=403988

which seems to be a solution to this common Acer notebook problems. Well I am using the ThrottleStop and it seems to be working so far,

although I didnt test much I think it might be solved, and I guess it wasnt the GPU after all...

So thanks for pointing me to that solution kuuga and topic can be closed.

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