Controlling Fan Speeds On HP Laptop?

Hi. I'm pretty sure you can't do this but I thought that I'd ask. My HP dv7-3079wm gets fairly hot under normal conditions, between 55C-65C. I should be getting a cooling pad for it soon, but I was wondering if theres a way to control the fan speeds? Once it hits about 60C the fan speeds up and cools it down to about 55C and then slows again. Speedfan doesn't show any fans, though I use it to monitor my temps in my taskbar. So, does anyone know if theres another way to control fan speeds? Or a way to get SpeedFan to detect mine? And I even have the back propped up a little to help it ventilate better... Any help is appreciated, I don't really like these high temps.

 

Unfortunately no, the fan algorithms are firm-locked in the BIOS/ACPI.

Speedfan is only good for desktops. I havent seen it work on a notebook before actually.

 

Any other recommendations on ways to cool my laptop?

 

-Reducing system load by removing unnecessary processes and services
-Undervolting is another option but i dunno if any programs support your CPU

Btw are you talking about the CPU or GPU temps? and are they idle or max temps?

Anything below 80c for the CPU or GPU is fine. Anything above and you need to look at cooling solutions.

As for the hard drive, 50-55c is fine, anything higher and you will need a cooler

 

This might work:
http://notebookequus.blogspot.com/2008/09/patching-dsdt-table.html


I can also change the code in the dsdt for you so that this will happen:
Once it hits about 60C the fan speeds up and cools it down to about 55C, but I will trick the notebook to still think it's hot so the fan will not slow down at all.

 

Wow. Thats the exact kind of thing I want to do, but that's a lot of steps I could screw up.... Well how long do you think this would take to configure?

 

-Undervolting, as shown in http://forum.notebookreview.com/showthread.php?t=235824

-Laptop cooling pad (really helps, my roommate has an HP that ran up to 100C during gaming, now it runs at 60C)

 

Those temps aren't super high for a AMD laptop (Turion II/HD4650 combo) in this case. While gaming, the temps would likely raise quite a bit more.

Make sure that in BIOS, fan is set to ALWAYS ON.

BUY a notebook cooler with this AMD/ATI laptop!!! A good one, not a cheapie one... look at ZALMAN, ANTEC or Thermaltake or others...

You're running a Turion II Ultra M600, so for undervolting, there is not a lot of info available yet, cause very few people reported their experience yet. Maybe the programs that work on Turion Ultra will work on Turion II Ultra. But undervolting is the way to go to drop your average temps 5-10 degrees celsius (your mileage may vary).

So ,those 2 apps and there is one more I don't quite remember:
-K10Stat
-turionpowerctrl

-Use HP RECOMMENDED (Power Plan), so the CPU will throttle down to save power if only light tasks are being ran. (you can test it if you download CPU-Z and watch your clock speed going up and down).

There should be 5 different power states on a Turion II (5 speeds automatically adjusting to the load).

Also, make sure that you run the latest updates for your OS.

That laptop uses the ATI Mobility HD4650:
Make sure that in ATI CCC (catalyst control center), which is the videocard's control panel, that POWERPLAY is enabled. It will throttle down your GPU when running 2D tasks and while running on batteries. You can monitor your GPU's temperature and clock speed using GPU-Z, and it will show you the reduced clock speed of the graphics ship while running light 2D tasks.


All in all, the Turion II, being a 35 Watts TDP CPU, and using a high-midrange GPU like the HD4650, will still run a little warmer than it's Intel counterparts, but should be cooler than Turion Ultra ZM-series.

 

20mins.

The guide is pretty clear.

If you have any problems (like the BSOD when you restart the notebook) hold F8 and boot "last known good config".

 

Ok, I've gone through most of the steps. But when I get to the part where I open the ASL file, it isn't clear which list is the fan speeds. One that looks like it should be it:
Name(BCLT, Package(0xd)
{
0x64,
0x32,
Zero,
0xa,
0x14,
0x1e,
0x28,
0x32,
0x3c,
0x46,
0x50,
0x5a,
0x64
})
Is this right? And if so, what should I be changing?
Thanks

 

It might be it, any chance you could upload the file for me?

Anyway, the numbers are in HEX.

First ignore the "0x" part. Then use the windows calc in scientific mode to convert from HEX to decimal.

0xa = 10
0x14 = 20
0x1e = 30
0x28 = 40
0x32 = 50
0x3c = 60
0x46 = 70
0x50 = 80
0x5a = 90
0x64 = 100

 

Ok, I attatched the file but I had to copy the dsdt.asl info into a new .txt file since it wouldn't let me upload .asl. I don't know if it's clear where the fan levels are... I just need to get a cool pad sometime, which should solve my problem.

 

I'm not sure if you have the list in the code.

What I would look at would be these two lines:
Name(FMAX, 0x1388)
Name(FMIN, 0x960)

I would change FMIN to a higher number. I think it's the RPM of the fan in HEX.

So FMIN = 960 = 2400 RPM.
FMAX = 1388 = 5000 RPM

 

Ok, I might give that a try. Thanks for your help.

 

just stumbled over this - looking for help with my fan running way too loud and too fast for very low temperatures.
But I'm pretty sure these values above are for the back light (BCLT) of the display.

 

That makes sense. Thanks mate

 

I have same problem as you. Mine dsdt table looks like yours. Have you tried to chance the values? Is it working? If so I will try too....

 

I'm not sure, but I think the newer firmwares don't have all the options for controlling the fan speeds that the newer ones do -- can anyone confirm this? What BIOS firmware have people had success with? I have Firmware 21 on my tx2.

P.S. Changing the FMIN value on my notebook works just fine, thanks!

 

I know it's been a while, but FWIW:

I tried downgrading my tx2 firmware to F.12 and F.14 -- even so, I still have only the "FMIN" and "FMAX" values in the DSDT table to work with.

I would think that changing the firmware would change the DSDT table, no? Wish someone could enlighten us...

 

did you try this:
http://aspiregemstone.blogspot.com/2009/12/acer-aspire-4530-actual-fan-control.html

 

Wow, I've never seen that — thanks for pointing it out!

But from what I read though, that only changes the current fan speed value (temporarily) right? It wouldn't exactly be the same as the DSDT modification...

 

Yeah it's not really a solution.

But I don't know of any other way to do it.

 

Is there a good way to undervolt the i5 or i7?

 

Well I don't think that laptops equipped with AMD/ATI run much warmer than Intel/Nvidia. Currently I have an HP DV7t with Core 2 Duo T5900/ Nvidia 9600m GT, HP DV6 with Amd Turion ii M520 / ATI 4650 and Asus g71gx with Core 2 Duo P8700 (one of the coolest CPU's)/ Nvidia 260m GTX.

The AMD CPU is 7-10C hotter than my P8700 under heavy load, yes. 5C warmer than my T5900. But the ATI 4650 is much cooler than the 260m GTX and 9600m GT both of which reach pretty much the same temps. After a 3D Mark 06 my Nvidia cards get to 78-80C, and the ATI gets barely to 70C !

So after all things look pretty much the same. The coolest combo would be Intel / ATI.

K10stat is a very nice program to undervolt the AMD Turion II. For me it dropped about 5C. Shoudn't go more than -0.05 on each P-state with the voltages because the CPU starts losing performance.

 

Hello!
I have a problem my laptop HP Compaq EvoN600c!
Under windows the fans are barely heating, it's even hard to hear them...But they are working for sure because when XP boots on they work very good, and they stop after XP loads in...
And after an hours or earlier...laptop freezes..and very hot!

I've googled a lot about it can't really find a solution..I have enabled in BIOS "Fands always on when AC Power"...nothing happened..
Now I'm trying to follow How to Reduce Fan Noise on HP Notebooks: Patching the DSDT table but I'm not sure what to chage...
My guess is that the thermal zone is veryhigh because NHC program showsthis:

http://i49.tinypic.com/lxmbq.jpg
I thinkthe temperatures are too high, that because the fans don't start to work...
I attach my dsdt file in txt !
Please moral hazard if you can help me Or anybody!

Thanks!