What sony software controls fanspeed?

In Vaio Control Center there is option for adjusting priority of fanspeed. Which of the software components when you install with clean install is in charge of managing fanspeed? Fanspeed seems to be elevated more than usual right now. Thanks.

 

There is no software controlling the fan speed. Fan speed is always controlled by BIOS.

All those tools just change energy settings in order to keep temperatures (and fan speed) lower.

 

Vaio Control Center lets you choose performance vs quiet mode, and changes the threshold of fanspeed. I'll take a look in the BIOS. But the Control Center setting is unresponsive now. It seems paradoxical right now, at idle the fan speed is high, and if I work the CPU a little bit it will quiet down, and then at max CPU load it will turn it back up. Otherwise will have to reformat...

 

Quiet mode simply means less energy consumption (= lower heat -> lower fan speed)

Controlled by the BIOS does not mean, that you can control it via BIOS

Btw, reformat won't help either. Try lowering temperatures by saving energy. Undervolting and SSD's help alot.

The fan on my VGN-Z is completely turned off for > 50% of the time I'm surfing in the I-Net. Otherwise the fan runs on lowest level, almost unrecognizable. I'm using a 256GB Dual SSD and the CPU is undervolted to 0.875V (800MHz) - 0.95V (2.53GHz).

 

there are some secret protocol signals which do enable s/w control of fan speed, but Sony has not released them and so there's no utility out there which can control the speeds in vaio unlike Dell or HP.

(for example, check out the fan diagnostics utility in the latest version of vaio care. It speeds up the fan to full speed and then ramps them down again. So definitely there is a way to signal the bios thru software to change the speed, however it remains undisclosed)

 

What utility are you using for undervolting? The fan did not behave like this before, haha, did it on its own one day, so a reformat should fix it, maybe..

 

As far as I know there is no undervolting utility for the current and last core-i series.

 

Wrong. The thermal strategies in Vaio Control Center change the fan spinup "guidelines". For example silent mode will still run full CPU power, but prevent high speed fan operation, causing the CPU to throttle when temps rise.

There certainly is a software path to full control of the fans, we just don't know what it is.

 

I use CPU Rightmark for undervolting. And yes, it only works with the Core2 series, not with Core i. That is why I still use my old VGN-Z: It is fast enough with C2D @2.53GHz and 256GB Dual-SSD while running extremely quiet.

Before you reformat try looking in taskmanager which process causes high CPU load and deactivate it if it is not needed. This should help in reducing fan speed.

CPU throttle = energy management. So that is basically what I said in my previous post.

That's true.

But as Sony is not going to make it public this won't help.

 

Btw, here is a pic of my desktop after 15 minutes of inet-surfing via WLAN:



Temperature of the CPU is at 30 °C (86 °F), fan did not turn on once and I'm getting about 9 hrs of runtime with large 8.100 mAh battery.

 

Congrats, stunning how much one can gain from undervolting CPU runtime and temperature-wise. I have an old 2005 HP NX8220 professional notebook which served me well for 5 years. After two years I "upgraded" the existing 1.86GHz Pentium-M 750 to a 1.6GHz 725, pinmodded it to 2.13GHz and ALSO downvolted it significantly w/ rightmark. It gained me better performance AND a nice 20% battery life boost. This 400 to 533MHz FSB pinmod certainly was one of the best laptop mods ever.

 

Thanks!

Getting a laptop like Vaio Z to run quiet is quite a complex task, but it is definately possible.

For me it started with choosing the right OS: In order to have RM Clock working correctly I need a 32-bit System, so I use Win 7 Ultimate 32-bit. SSD's are another important component as they make no noise and have lower energy consumption.

Next step is find the right setup where everything works 100% stable with lowest energy consumption possible. Deactivating unneeded processes that consume CPU power alone can make up for 25% of longer runtime which also means less heat.

In the end it is all about physics: The more energy your laptop consumes, the more heat has to be taken away by the fan and the louder it gets. So the key is not to have a fan control software (as the laptop would overheat at a certain point), it is about low(er) energy consumption.

And I personally prefer to take care of these things on my own than to use the software provided by Sony.

 

Reformatting did not do anything. -___-

If I scroll up and down a webpage very quickly, it will reduce fanspeed all the way down to nothing. And then when I stop, it will ramp the fanspeed back up. This makes no sense....

 

Sounds almost like a hardware problem with your Vaio.

Try running Prime95 (large FFT's or blend) and look what happens, but keep an eye on your CPU temperatures. It should quickly overheat if the fan spins down also when running the programm.

 

hhm. On my old Fujitsu T5010 RM Clock runs perfectly fine with Win7 64bit. No problems whatsoever. What problems did you experience with the 64bit version?

 

RM Clock needs a patched (signed) RTCore64.sys to work with Win7 64-bit. 'Out-of-box' it does not work.

But even with this file I had problems getting the VID applied properly on 45nm Penryn CPU's under W7 64. CPU-Z showed, that the VID was not applied for all P-states.

 

Off topic here, but can you send me a link to that wallpaper on your desktop?

Thanks

 

Finally found the solution to this stupid problem here: http://forum.notebookreview.com/son...-sr-series-owners-thread-382.html#post6031632

Two other people experienced this problem, haha.

 

Yes I knew about the RTCore64.sys (added that to my install way back when I startet using it with Vista64) but apart from that all P-states were applied as they should on my machines.

 

Glad to hear that it works for you.

Did you also try with Penryn CPU's that use a .5 multiplicator?

@XTACTIC:

Pier desktop wallpaper : Widescreen : High Definition : Mobile

That makes sense cuz if the fan turns down on full load the problem seems to be related to the power supply.

 

could you post the wallpaper?

 

Pier desktop wallpaper : Widescreen : High Definition : Mobile
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