Fan always on (BIOS) and loud noisy fan problem on HP Pavilion dv5, dv7 etc. SOLVED!

[verisign]

Here is the solution: http://notebookequus.blogspot.com

[PlanetEarth]

Thank you for this very detailed explanation!

But, will it work with the dv4t???

I hope the HP BIOS development team puts more effort on their BIOS updates!!!

[verisign]

Thank you for this very detailed explanation!

But, will it work with the dv4t???

I hope the HP BIOS development team puts more effort on their BIOS updates!!!

Yeah, i think it will work on almost all HP notebooks, old and new. For example, in the article mentioned in my explanation, the author patched the fan speeds on the HP Compaq nc8430 laptop, and in comments, another user with the HP Compaq 6730s have also successfully patched his laptop. And maybe it will even work on non-HP notebooks, because all laptops have the DSDT tables in their Windows registry.

[extra_credit]

Hi Thanks for the tutorial. (the fan on my dv5z with the athlon x2 ql-60 cpu was driving me insane).

I made the changes to the ASL file as you suggested, but when It's time to load the file, I get an error saying that the registry path does not exist. Do you know what might be wrong? Thanks!

c:\ACPI>asl /loadtable -v dsdt.aml
Microsoft ACPI Source Language Assembler Version 3.0.1NT [Aug 29 2006, 14:17:49]

Copyright (c) 1996,2006 Microsoft Corporation
Compliant with the ACPI 3.0a Specification


DSDT info for update image (dsdt.aml)
Size of image: 38476
OEM id.......: HP
OEM Table id.: 30F2
OEM revision.: f0000000
Error: Count not access the registry path: System\CurrentControlSet\Services\ACP
I\Parameters\DSDT\HP____\30F2____\f0000000

c:\ACPI> dir
Volume in drive C has no label.
Volume Serial Number is CEB3-BB17

Directory of c:\ACPI

01/29/2009 07:50 AM .
01/29/2009 07:50 AM ..
11/03/2006 12:54 PM 184,168 asl.exe
01/29/2009 08:00 AM 38,476 dsdt.aml
01/29/2009 07:57 AM 287,858 dsdt.ASL
01/29/2009 07:47 AM 38,480 dsdtorig.aml
09/29/2008 10:37 PM 11,264 equus.exe
5 File(s) 560,246 bytes
2 Dir(s) 27,109,937,152 bytes free

c:\ACPI>

[extra_credit]

nevermind... the problem was that I did not run cmd as an admin. the loading works now.

[verisign]

nevermind... the problem was that I did not run cmd as an admin. the loading works now.

So, have you liked the new DSDT settings? What fan speed values have you used, like in my example or some other?

[extra_credit]

i used your settings, and i still get the same noise all the time. i suspect it's because my laptop uses the Athlon x2 64 ql-60 chip, which is a desktop chip , and does not have any power mgmt features. when doing firefox work, the amd overdrive utilty reports 54-57 deg. C. I'm going to give it one more try with the fan at 10%

[extra_credit]

this last config here gives some noise, I guess i'll have to get used to the noise.
Name(BCLT, Package(0xd)
{
0x64,
0x13,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x13,
0x64
}

i broke down and ordered a fanless inspiron mini 12 . i can use my dv5z only when necessary. I should have just gotten a macbook from the beginning .