Vaio SZ Noise / Heat questions - Speedfan compatible?

I realize similar questions have been asked before, but...

I'm on a Dell 700M currently. It's a relatively quiet system, most of the time the fan is not on at all. I was thinking about waiting till Santa Rosa for an upgrade, but hearing about the extra power consumption of the new platform and the already-existent heat issues has gotten me a little worried.

Reading about the SZ's it sounds like you can decel the fan but not completely kill it with the Sony utilities. Is Speedfan compatible with the SZ's so as to do them in manually? I figure that it wouldn't do any harm as long as I'm only running low-level apps. In a similar note, what about the program that controls voltage settings for different CPU speeds? (can't remember the name of the program) For a while I had a bulky CoreDuo notebook which I was able to quiet down by reducing the stock voltage used when the lappy was at full speed.

Also, do the premium/non-premiums have any differences in terms of noise level? I figure the 200g difference isn't worth it if the Premium is a lot louder compared to the non.

Any help/comments would be appreciated.

 

Santa Rosa uses the 65nm chip, which should reduce heat.

I've used a 1.83 GHZ CD SZ for a while, and the notebook was unexpectedly quiet. The noise should only decrease as the processors gets better.

Try RMClock or Notebook Hardware Control (NHC).

There should be no difference. The only difference that that the premium has Carbon Fiber casing, which makes the notebook stronger.

 

The current Core 2 Duo and the slightly older Core Duo is also built on a 65 nm process, so a change in process is not present here. Power saving and heat output of the processor will depend on its clockspeed, and consequently, the load of the processor. However, Santa osa will be able to clock down the FSB to conserve power, and it will reduce its clockspeed when needed, just like many of the previous Intel and AMD mobile processors are able to do.