The Definitive Guide to Acer Aspire Gemstone Blue Throttling Issues

Thanks Moral Hazard but unfortunately the fix didn't work for me. Throttling occurred while I was playing. Perhaps I didn't apply it correctly.

 

@moral Hazard

I would give it a try, just to see if it works..but i don't know if i want to have the risk of hardware damage all the time. But it is a way to see whether the throttle is connected with temperature or not.

As you can see in some of my Attachements, sometimes it throttles with CPU<50 and GPU<80, so maybe there's another thing that triggers the throttle.

If the 50° method works, then we know it is connected with temperature. If not i am out of ideas...trying hard for over a year now and tried a lot -.-

 

Your dsdt doesn't have the PSV code.

The only thing I can do for you is to cap the temp at 50C.
This should stop throttling but it will also stop the notebook turning off to save itself from high temps.

It's not really safe, but you can try it. I attaced the file in a folder called "RickyC.zip".

Ok I attached the file for you to test.

 

Thank you, i'll try this one tonight after work. But could you pleas tell me, which line you edited?

And another question:

the dsdt.aml stays always the same file? I just use the other *.asl filde for testing and after:

asl /loatable dsdt.aml there has to be a reboot everytime?

 

First you have to rename Abraxis.txt to dsdt.asl.

Then you have to compile the file with this command:
asl dsdt.asl

then you will get a new .aml file.

Next you use the command:
asl /loadtable dsdt.aml

then reboot.


The code I changed was in the TZ scope>ThermalZone(TZ00)>Method(_TMP, 0x0, Serialized).

I added this code just before the line (Return(Add(0xaac, Multiply(Local0, 0xa, ), ))):

If(LNot(LLess(Local0, 0x31)))
{
Store(0x31, Local0)
}

 

OK, thanks.

so the first line always changes the *.aml. This point wasn't clear to me before. But every time i tried it, i did it correctly.

 

it throttled again shame, i thought it worked. any other ideas or why this shouldn't work? here's my dsdt again:



FYI, my cpu is t5750 2.0ghz.

 

Hmm Moral Hazard tried the new file, rebooted but still throttels -.-

 

@ Abraxis, The last thing you can try is to set the TZ00 temp to 40C.
Not cap it there, but just hard code it to always be = 40C.

Also the same should be done to the other temp (TZ01?).

If that doesn't work, I'm out of ideas.

 

I am confused why you all keep changing the DSDT?
Actually, setting the Throttle Temperature to 100C should fix the problem.
A normal or stable CPU will never runs above 70C, not to mention with undervolt, it will be lower than 60C. So, shouldn't be worry about 100C as Throttle Temperature.

Question:
Will the DSDT which Moral Hazard modified can be used in Windows 7?

 

Some users say it doesn't work for them.
Also some users don't have the PSV code so you cant set the throttling trip point.

I am trying to give them other methods, but they don't seem to work.
It's all strange to me, maybe acer should fix this.

Probably, since win 7 and vista are very simmilar.

 

Great! So, Windows 7 can use it too.
PSV Codes? What is that? Did my DSDT which you modified have that too?

 

Moral Hazard,

so i've to change the 0x31 (50°) to 40 what is the code for 40° ?

 

0x28 should give you around 40C.

 

So, moralhazard, you're doing a modded DSDT that will able to make the sensor reads wrong information.
I mean LOW temperature reading with high throttle point?

 

Hi guys,i undevolted my cpu today .

I checked my temps while playing and it doesn't hit 65º.It still throtlles after some time,Why?

This is the worse nightmare for online games,i get killed so many times in cod4 because of this stupid feature.

And i can't use the guide by moral hazard because there's no . HKEY_LOCAL_MACHINE\HARDWARE\ACPI\ DSDT\HP____\nc8430\00010000 in my registry.

Any help?

 

In our case, the parts after DSDT will be different (INTEL\CRESTLNE\ if I'm not mistaken). That guide was written for an HP notebook, remember.

 

Of Course there will be no such entry because the guide was originally for HP laptop specifically NC8430.
You should still see this
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\{Acer DSDT here}
Not trying to be rude but please try to be logical and flexible in your thinking.

 

Ooooo... yeah... Tehsuigi.
Happy with this DSDT hacking? XD
It seems you need to add this FIX to this topic too.

 

i think you're the only one dsdt hacking is working for.. all the others are reporting throttling

 

Thanks. I'll probably leave it but keep the file just incase I ever feel te need to or when the laptop is a bit older.

 

LOL? Really?
Nevermind... T.T
It seems there are no-1-fix solution yet. Sad.

 

I am ,Usually.Just didn't knew the HP stood for the brand

OK,thanks for the heads up.Heres my file uploaded.I have a 6920G BTW.

Thanks again!

 

I attached the file for you. It should set the throttling trip point to 100C.
Let us know how it goes

 

Thanks for it.

I tested playing COD4 MP and after some time it starts lagging.

But,i checked on CPU-z and it was using the 12x and max speed.

Could it be the GPU? (although it starts well with high frames)

Is there another way to check it?

 

I don't completely understand throttling.

But when I forced throttling on my CPU, it stays at it's top speed (2ghz) but it is slower in benchmarks (and generally noticibly slower).

So I don't think you can use cpuz to check for throttling.

I will check your code to see if the GPU is being throttled, but I doubt it.


Too bad this mod doesn't work for most people

EDIT: just checked, I don't see the GPU being throttled in the code.

One thing you could try is setting all thermal zones (TZ00, TZVR, TZVL and TZ01) to be always equal to something like 30C.

That could be a test to see if we can do anything to stop throttling. But I wouldn't suggest using that as a fix because you run the risk of overheating and killing your notebook.

 

I was reading through the ACPI specs and I realised there is more to throttling than simply the thermals.
There is also Processor definition etc.
I seriously think anyone trying to solve this need to read the whole documentation.

 

Use RMClock to determine if your system is throttling. The core clock will remain the same, but the on-chip throttle speed will cut to about half.

 

could you or moral hazard work on that? because i agree, it is not simply thermals. there might be other reasons causing throttling.

 

Highly possible.
Because last time, Tehsuigi and myself discuss about the BIOS stuffs.
We found out there were many possibility that caused throttle.
Thus, we claim that there's not TRUE-FIX or 100% workable solution for this problem.

 

i've just noticed that the laptop is running at 70C with no throttling, while i'm doing heavy registry cleaning. i've never seen my computer throttle when doing heavy tasks. it only throttles while playing most games.

could the cpu throttling related to gpu throttling in some way?

 

Anyway for curiosity sake can anyone dump the VGA BIOS using Nibitor?

 

here is the vga bios

 

It is possible to undervolt the GPU.
Don't worry about failure because there are lock booting clocks meaning it will assume the undervolted values in Windows only.
However you will be flashing in DOS so you will always be able to reflash.

I will just post the method to modify the Voltage

After opening the BIOS, select Tools then Voltage Table Editor
Modify the values don't touch the VID just the label.

 

You mean,no solution from us,probably.

Those lazy acer engineers could fix it for sure

I tried using the 11x mulltiplier( loose 200MHz) and lowering the voltage as well.It took more time,but still lags after some time.

 

This will mean it still hit the throttle point and slowdown the CPU.
Honestly, this problem is very annoying and serious.
I think Acer won't give a damn about it because AS6920G is an old laptop(more than 1 year).
By the way, have you tried my tweak, http://forum.notebookreview.com/showthread.php?t=393073 ?

 

No!

I'll try it now and tell you something.

It works for you?

 

YEP! Of course.

 

but doesn't this also occur in 8920, 6935 and 8935?

 

Some of those models you stated were affected as well. Yet, not all, just minority.
However, AS6920G have the highest amount compared to all of these. Can be said as majority.

 

and 8920G too i think. For the newer ones a Biosupdate, new Sound an Graphic driver mostly fix the problem.

 

if a bios update fixed the problem with the new ones, couldn't someone see what is fixed and apply it to the 6920/8920 bios and dsdt?

here are some latest version bios links:
6920G

6930G

6935G

8930G

8935G

here are the oldest bios:
6930G

6935G

 

I've been running the latest BIOS for the longest time, and it still has the problem.
The recommended solution is still to undervolt your CPU, and generally keep your system cool (clear air vents, cooling pad, risers, etc.)

 

LOL. Isn't that Moral_Hazard tweak fixed your problem?
I think the BEST solution is indeed UNDERVOLT the CPU as well as keep the laptop DUST FREE. I think Windows 7 will decrease the temperature of CPU slightly too.
By the way, I am on Windows 7 again, I think the "Folder in Use" bugs got fixed.
The 1.14 BIOS for AS6920G changelog is completely unknown even until now. >.<

 

No, I edited my post a few minutes later to say that it throttled after 8 minutes.
Back to undervolting for me.

 

Goodness. Still, Acer BIOS > DSDT. LOL.
I think mine will throttle too, maybe that time is same as you.
I lazy to test it out. Since my CPU very hardly to get over 57C. Even I stress it, it needs about many hours to reach that temperature. LOL. I mean with my undervolt+tweak.

 

Hi to all. First post, so greetings to all and apologizes for my English.

I've followed this thread for a long time and with undervolting CPU I've noticed that throttling has not gone, but it just occurs less frequently.

Someone has said recently something about Nibitor. Mi question is: Someone has tried a combination of undervolting CPU and undervolting GPU? When throttling appears now for me, Temperature levels TZ00 and TZ01 are very distant from 70ºC (about 55ºC or so), but TZVR, TZVL and GpuCore are rounding 95ºC. I don't know why, but Core0 and Core1 are constant for me.

Regards

 

OMG! The "folder in use" bug still exist in Windows 7 for me!! GOD!!
I think it is due to I changed the permission before. But it should be just the Avira Nagging file. Strange bug for me. ARGH!!!
I tried to change all permissions and all users as well as owner. ALL FAILED!!
STUPID WINDOWS 7!!

 

but i think it is very likely that the fix exists in the bios itself.

anyways, does anyone with 6935/6930 has a throttle problem? if so, does a bios update fix the problem? because if that's the case, an expert in this stuff would compare different bios versions, check what changed and apply to 6920 bios.

 

Check all the software you installed.
Check the Window 7 integrity.
Windows OS permission is independent of the underlying hardware.