control fan speed with registry hack

For anyone who wants to try this, I found the best guide:
http://forum.notebookreview.com/att...n-constantly-temp-readings-included-equus.zip

That should be very easy to follow.
But it wont work for everyone, still worth a try.



__________________________________________________________________________________________
Hi,

I'v been overclocking my CPU with setfsb, the temps get quite high.
I have changed the thermal paste and every two months I take the notebook apart and clean out all of the dust.
Also I set the voltage to the point where my CPU is just stable.

I would like to "hack" the registry to force the fan to be on always (full speed).
The kind of temps I get arn't really that bad (~70C @ 2.4ghz) but it's not comfortable with the thing on my lap at that temp.
Toshiba doesn't seem to think it's hot enough to turn the fan speed up.
The fan does speed up when the CPU is around 80C though.
________________________________________________________________________________________________________
EDIT: here is what I'v got so far:

Ok so I'v figured out how to do it.
basically I'm half way there.

here is what I'v done so far:

I am folloing the guide here: 8710w - fan works all the time - Page 8

but I am taking different steps because I'v got a toshiba (you can use any notebook, just follow what I did).

then I opened regedit.

I went to HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\TOSHIB\A0054__\20080108

but for other notebooks it will be simmilar : HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\...

untill you find the value "00000000".

click on that key and go to file>export.
export it to the new folder you made "dsdtpatch".

Now you need to go here:
Eddie Tse: Patching the DSDT table for 8510p to reduce fan noise

and download the .net program.

since the program is made for the specific HP notebook, we need to modify our registry to make it look the same so the program works.

So now go to
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\
and make new keys so that you make it look like
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\HP____\8510x\00010000.

inside that you need to make a new binary value, right click and new>binary value

name the value "00000000".
go back to where your real value is:
So now go to
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\...
and right click on the value and select "modify binary data".

highlight all of the data (use your shift key to do this fast) and rightclick>copy.

now go back to
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\HP____\8510x\00010000.
right click on the value and modify the binary data. now rightclick and paste .

so now you should have two identical values in two places.

now you can run the .net program you downloaded.

it will make a file "8510x.orig". rename it to "8510x.aml"

now open a command prompt and type: asl /u 8510x.aml

you should now see a new file "8510x.ASL".
open the file with notepad.

now you can delete the HP____ key and all it's sub keys.
so that you no longer have HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\HP____\8510x\00010000.
so that is what I'v done so far.
the next step is to modify the fan speed values in the file and the use the command :asl 8510x.ASL
to compile the file.

then install the file, Installation is done in console: asl /loadtable 8510x.aml

then after a reboot you should have your fan doing whatever you told it to do.

when I finish I will post my results

 

Can you just set the power option to performance and leave it at that?

cheers ...

 

the power option is on performence. Also I'v gone through all of the settings to make sure cooling was optimized.

the fan is always on, but on the lowest setting.
I would like to set it to medium or high.

I know it's possible to do it with regedit, I just dont know what to change.

 

i would also be interested to know how to turn up my fans as they usually don't turn up untill CPU temperatures is 80 celcius +++. But from what i knoiw it's not possible to do this so any help if appreciated...

 

There is no way right now unless you either have a Dell or a Sager.

It should be possible through editing the dsdt tables of the acpi but the resources on that are all for linux and not very clear at all.

 

I think it's possible to do it in C++ or VB.

let me post some stuff from MS visual studio help:





I will work on this.
Please if anyone is a pro @ programming help me out

 

I did a ton of searching online a while back on this and I think that this may only be applicable for desktop computers. Laptops are "special" since they generally don't have much fans and the method by which they are being controlled may be different.

Just go look up changing the dsdt tables on acpi settings. You'll get to some linux resources and such.....

 

I am going to make a Noob remark so please forgive.. I am trying to be helpful... In speed fan http://www.almico.com/speedfan.php it gives option.. can you use speed fan which read to write or change settings?

It makes sense to me since the program is already communicating with the hardware?

I hope that doesnt sound to, too crazy.

Be well, JW

 

SpeedFan was made with desktops in mind. Notebooks control the fans differently compared to desktops. It will not work.

 

What is SpeedFan

SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips. SpeedFan can even access S.M.A.R.T. info and show hard disk temperatures. SpeedFan supports SCSI disks too. SpeedFan can even change the FSB on some hardware (but this should be considered a bonus feature). SpeedFan can access digital temperature sensors and can change fan speeds accordingly, thus reducing noise. SpeedFan can find almost any hardware monitor chip connected to the 2-wire SMBus (System Management Bus (trademark belonging to SMIF, Inc.), a subset of the I2C protocol) and works fine with Windows 9x, ME, NT, 2000, 2003, XP and Windows Vista. It works with Windows 64 bit too. SpeedFan can access the temperature sensors available on your motherboard and on your nVidia video card. The most widely available temperatures are from the chipset, the CPU, the ambient and from the power circuitry. Modern CPUs can report their own internal temperature. Multi-core CPUs are often able to report temperatures from each single core. SpeedFan can access those readings and report changes. More powerful hardware (motherboards, CPUs, video cards and hard disks) often requires more power. More power leads to more heat to dissipate. A proper airflow inside the computer cabinet helps to keep temperatures low. Inside computers there are fans that create such an airflow. SpeedFan can report the speeds of each fan and it can even change their speed based on current temperatures. This lowers noise and improves computer experience. SpeedFan can access the voltages reported by the hardware. This can help to identify odd issues with computers resetting under stress, for example. Please, note that SpeedFan reports the voltages according to the official documentation. Sometimes hardware manufacturers use custom circuitry. In the FAQ you can find further info on this topic. Almost every hard disk can report a set of data about its own health and status. This is called S.M.A.R.T.. Based on reported data, a hard disk failure can often be early detected. Hard disk temperature can be read too and it is useful to identify overheating components that could reduce your valuable data reliability. SpeedFan offers a unique feature (called "In-depth online analysis") that compares your hard disk SMART data to a model derived from millions of reports. This helps to better identify when a specific hard disk is outside "normal" values. SpeedFan can report health data and statistical values returned by SCSI hard disks. Such data contains the hard disk temperature too. Hard disk temperatures are positively correlated to hard disk failures. This is the reason why these information are so important. SMART data from hard disks connected to RAID (software or hardware) controllers is more difficult to be read. SpeedFan is improving RAID support and it currently properly supports software RAID (offered by Windows) and ARECA controllers. Support for AMCC 3ware controllers is on its way and will soon be added. Reliable access to RAID controllers requires support from hardware manufacturers. This is something that is being worked on.
Hover on the icons to read more about specific SpeedFan features.

News

SpeedFan 4.40 beta 5 is online! SpeedFan 4.40 beta 5 is online! Winbond W83667HG support has been greatly improved and preliminary tests show that on several Asus boards now more fans (including CPU's) can be controlled using SpeedFan. Let me know your experience. CPU identification has been greatly improved too and now all of the Tjmax values published by Intel should have been implemented. I need your tests and reports.

I posted just in case there is something new with the 4.40 release.. or Beta 5.

How about just using a notebook cooler?

http://www.notebookreview.com/default.asp?newsID=4071

I found a picture of the bottom of your computer and it looks like it has great vents for a bottom feed of air flow..

I have the Zalman and my temp are 20 degrees cooler..

Maybe that will help.. I know you asked for a hack.. I am just trying to be helpful.

Be well, JW

 

you are being very helpfull

My notebook does have a lot of vents and a cooler would be great but I never really use the notebook on a desk. Most of the time it's on my lap.
I will still consider buying a cooler.

@TevashSzat, I will try to do it with linux first as you suggest.

 

Moral,

Look into the laptop desks.. they ROCK!

Note Book Coolers..

I have killed every laptop I own becuase of heat.. My fault not the manufacturer's fault. If you use one of the lapdesks above you will have some air flow at the bottom of the laptop.. if you were to use it without any surface the Blanket (winter) or your short (summer) would block air flow which mean the laptop which will run hot to begin with will run even hotter and the Video Card is always the first to go.. and the most difficult to get to in most instances.

The Laptop Desk (almost any) will make your life easier not more difficult and wayyyyyyyyyyyyyyyyyyyyyyyy more comforatable.

http://www.stacksandstacks.com/porta...175&sku=121964

I just liked these.. the coolest (pun intended, its Sunday I hope you take the time to laugh)...

http://www.amazon.com/Pyramat-Laptop.../dp/B001EWF7W4

To be clear I use a Zalman ZM-NC 2000..

Thanks Tex for the Pics (Tex is a Team Dell kind of guy but he means well, thats a joke for Tex)

http://forum.notebookreview.com/gall...php?photo=2029

http://forum.notebookreview.com/show....php?p=5260009

The Zalman is vented at the bottom so you will have the exact same problem you do with a laptop unless it is ontop of a lapdesk of some kind.

Be well, JW

 

Hey Moral
What you want to do is hack the ACPI DSDT table in the registry. Several of us have done it in the past, and there are free tools available, and it is quite easy.

Have a read of this thread. It does exactly what you want to do (but in reverse - ie. stop the fan spinning fast), it is for an HP, but ACPI is a standard, so it should be quite similar.

 

thanks a lot stumo, I will read that as soon as I get a chance

 

hi there,

i am another person looking for to control the speed of my fan.

speed fan is never able to detect my fan i tried many times.

also in bios there is not even a option about fan.

also in windows xp i couldnt find.

seems like notebooks's fans are like our heart we cant control it

i want more people to be interested in this thread.

i am sure that if everyone pay attention to this thread,we will find a way to solve this.

cant we play up with sensors?is there any program to hack sensors to fake the fan to spin in it's full speed.

i dont even care about noise cooling is very important to me.

i got a zalman nc2000 and undervolted cpu but i am not satisfied with my gpu temp because the fan only spins when cpu is heated which is not necessary bercause i have a good cooling.

but fan fails to cool my gpu because it doesnt spin also zalman nc2000 is not succesfull at it.

i want people that are good to make program make a solution.

 

Bump...

Calling all Ninja Pros to help..

Consider the Batlight on..

Thanks, JW

 

Undervolt the CPU?
Registry hacks, I think it can't be done.
Undervolt the CPU should help.
Get a cooler too.

Editing DSDT table is another way. But I am not sure will it works.
Flashing of BIOS too. You can try modded BIOS for your motherboard.
But dangerous~ the BIOS is so dangerous~

 

Ok so I'v figured out how to do it.
basically I'm half way there.

here is what I'v done so far:

I am folloing the guide here: http://forum.notebookreview.com/showpost.php?p=3638869&postcount=76

but I am taking different steps because I'v got a toshiba (you can use any notebook, just follow what I did).

1. Get the MS ASL Compiler at http://download.microsoft.com/downl...5-81fc-3e4bf7b65496/MS_ASL-Compiler_3.0.1.msi and install it.

2. Create some working directory, say, C:\dsdtpatch\

3. Copy asl.exe to C:\dsdtpatch\ from the installed compiler program files.


then I opened regedit.

I went to HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\TOSHIB\A0054__\20080108

but for other notebooks it will be simmilar : HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\...

untill you find the value "00000000".

click on that key and go to file>export.
export it to the new folder you made "dsdtpatch".

Now you need to go here:
http://eddietse.blogspot.com/2008/03/patching-dsdt-table-for-8510p-to-reduce.html

and download the .net program.

since the program is made for the specific HP notebook, we need to modify our registry to make it look the same so the program works.

So now go to
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\
and make new keys so that you make it look like
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\HP____\8510x\00010000.

inside that you need to make a new value, right click and new>binary value.

name the value "00000000".
go back to where your real value is:
So now go to
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\...
and right click on the value and select "modify binary data".

highlight all of the data (use your shift key to do this fast) and rightclick>copy.

now go back to
HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\HP____\8510x\00010000.
right click on the value and modify the binary data. now rightclick and paste .

so now you should have two identical values in two places.

now you can run the .net program you downloaded.

it will make a file "8510x.orig". rename it to "8510x.aml"

now open a command prompt and type: asl /u 8510x.aml

you should now see a new file "8510x.ASL".
open the file with notepad.

now you can delete the HP____ key and all it's sub keys.
so that you no longer have HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\HP____\8510x\00010000.

so that is what I'v done so far.
the next step is to modify the fan speed values in the file and the use the command :asl 8510x.ASL
to compile the file.

then install the file, Installation is done in console: asl /loadtable 8510x.aml

then after a reboot you should have your fan doing whatever you told it to do.

when I finish I will post my results

 

before you change anything, try recompiling what you disassembled first. You will probably find "errors" that will need fixing before it compiles. Then compare with the original, just to be safe. Then you are good to go with trying to hack the fan speeds.

 

ok, I will do it.


Also I'm having trouble finding what to change, I'v attached my .ASL file to this post, It would be great if you could look through it and tell me where the fan values are?

BTW, I attached it as a .txt file.

 

One more question, how do I know which line is which.
there is no line count in notepad.

when I try to compile it gives an error on line 1521, how do I know which line is 1521?

 

download notepad ++
s is AMAZING and has a line count
it

 

thanks, +rep

This should speed things up.

 

ok it compiled now after I added a few "()".
now all I need to do is find which values are the fan speed values and change them.

please someone look at the file I attached a few posts back and help me find what to change

 

If u get this to work, could you make a VERY detailed guide on how to change the speed of a fan.
I would like to do this, but it seems like its damm complicated. But Im' ready to take the risk as the benefit could be big.

 

ok if I get this to work I will make a very good guide with screenshots.

By the way there should be no real risk because all you would have to do is boot "last known good configuration".

 

I'll be waiting for that, maybe finally it will eliminate thermal cycling which is an issue in some games.

That is a very good info to hear.

 

So how close are u to being successful in doing this all moral?

 

Hmm, nothing jumps out at me. Maybe if you could work out how many different fan speeds you currently have (including 0) that would give us something to look for. ie. "Package 0x5" or something.

 

ok, I will do that.

I will post the number in ~20min.

 

very close. All I have to do now is change one number. I just can't find the number to change so I'll do some tests to see how many differents speeds my fan has.

 

I have tested and there are 6 fan speeds (incuding off).

 

So it worked?

HWMonitor Pro can also interface with hardware if you put the time in to create the code

 

no I was just giving an answer to the following:

 

here is what I'm doing today:

basically I'v found this:

the key strings there are THRM (thermal zone) and TMP1.


I have changed it to

 

Yeah, that _TZ branch is the place I'd be hacking at too. It is quite different to the HP methods I've worked with. I think this is because from my experience, Tohsiba tend to do things themselves, and so they do them by the book. I'm pretty sure HP just buys/subcontracts this kind of thing.

So I can't really help you any further, other than to suggest googling. This DSDT hacking stuff is quite common in the linux community.

 

Thanks, you've helped a lot

 

OK now I changed it to this

I loaded the new table, shutdown the computer.
Then I turned it back on and ran some tests (ORTHOS...).
the fan is behaving exactly the same as before. i.e the modification did nothing.

I don't know what to do to that code ^^^ to make my fan act differently.
I guess I need to do more research.

 

cant the coolbits or nvtweak on laptop video2go change the fan speeds.

Other than that is there a way to hack cpu or gpu sensor so we will hack and and set it up to 100c so the fan will spin crazy

 

Don't work with my notebook, I think you have to have an Nvidia chipset?

I think the sensor is build into the CPU. No way to hack that (I don't think).
Even if we could hack it, the CPU might clock down to try to cool itself down.

I don't want my CPU frequency to change, all I want is to turn my fan speed up.

 

How about trying to post this problem in a linux forum?

 

ok, anyone know of a good linux forum?

 

just search on google.but we are trying to do this at windows so the linux cods wont work out properly.(I think)

moral hazard i appreciate your work,but there should be more people working on this i am searching,but it we can make it work by going like this.We need some more expreinced people.

 

What I did should work for you since you have an HP notebook.

I can make a guide just for you, the reason it doesn't work for me is because toshiba doesn't do this right. toshiba doesn't list the speeds in the file.

If you like I can walk you through this step by step. I really think it would be simple and straight forward on an HP notebook.

 

How about on an ASUS laptop?

 

I don't know about ASUS, but it wouldn't be too hard to find out.


I could give you step by step instuctions and when we get to the point that you can see your .ASM file we will know.

 

moral hazard it would be awesome if you could to this.I am searching for this fan thing for ages.So if you can post a nice clear guide about this I would be glad.If you can... please do it!!!

 

Ok I will turn this post that I am writting right now into a guide, ever few mins you should see it updated.

So here I go.

Do these three steps first:
1. Get the MS ASL Compiler at http://download.microsoft.com/downl...5-81fc-3e4bf7b65496/MS_ASL-Compiler_3.0.1.msi and install it.

2. Create some working directory, say, C:\dsdtpatch\

3. Copy asl.exe to C:\dsdtpatch\ from the installed compiler program files.

Here is what you should have so far:



Now open command prompt (as administrator).
if using vista then click on start, then in the little search box type "c".

here is what you should see:


Now right click on command prompt, select "run as administrator".

In command prompt type "regedit".
The registry editor should open.
It should look like this:




In the registry editor click on the things I have circled in the following pic, untill you see the key I circled in green:





click on that value (00000000) and go to file>export.
export it to the new folder you made "dsdtpatch".

Now right click on "DSDT", go to new>key. as shown in this pic:



Name the new key "HP____". so far it should look like:



Now right click on "HP____" and go to new>key.
this time name the key"8510x"

now right click on "8510x" and go new>key.
this time name the key "00010000".

it should look like this:




Now left click on "00010000". then right click on the right empty space and go new>binary value.
it should look like this:




Name the new value "00000000".
so that it looks like this:





For the next step, I need you to upload a screenshot of what your registry looks like know.
I will continue the guide after you do that ^^.

 

ok moral hazard so i am telling what i understood.

1-Downloading the thing u gave in link and installing it.

2-creating a new folder in C:

3-Copying the exe. thing from the installed files to the new folder in C:

4-Then openning the regedit and changing values etc.

 

all cool moral hazard i will do that on my spare time I red all things that you wrote.I will ask if anything goes wrong.it is clear thanks for your effort and help.

My school is on,so i cant get my hp laptop todays i am gonna get soon,will tell the results.