power features of TCL computers

[cast-fish]

Hi

what are all the variuos types of Power regualtion in TCL and what should be running by default on a laptop?

i notice this laptop here has the fan running almost always...

there seems to be lots of different power schemes and extensions for TCL .....but i wondered what are the standard
ones that should be running?....for example ACPI or what?

the boot list has the "laptop" code is there anything else it should have about power?

V