VGN-SZ2MB Phoenix Bios hidden options

[smugo]

Hi,

i have an old Sony Vaio vgn-sz2m/b notebook. The problem with this machine is that higher sleep states than s2 are disabled when the notebook runs on ac which let the fan run nearly all the time. I opened the bios file with phoenix bios editor and found out that an option to change this behavior and many other interessting settings is availible on the bios but hidden.
Could someone please unlock these hidden options for me?
I'm especially interessted in changing trip points for the fan and activating power saving options like the mentioned sleep states while on ac.
The bios version on my notebook is r0096n0. You can download the bios at http://www.sony-asia.com/support/download/62335.
At the moment there is an intel core2duo t7400 merom cpu installed in this machine.

Thanks for your help

smugo