I'm using a new asus motherboard which supports ACPI 2.0a, and am running Windows 8. I'm trying to figure out how to maximize energy efficiency and component lifespan. This computer is only used for a few hours a day, so should be in sleep mode or off for much of the time. It uses Asus's sleek new UEFI bios with EZ mode and advanced mode, mouse support, etc.
I read here about thermal shock and the various ACPI sleep modes. That wikipedia article gives me the sense that I don't need to worry about changing the default sleep mode since it should already be S3 (suspend to RAM), but I noticed that my chassis's fans keep running during sleep which seems wasteful, and it seems to wake up suspiciously quickly.
I looked through the advanced settings in the BIOS and read through the manual and found nothing about managing sleep modes. Are these still available in UEFI BIOS? Also, if you have any tips about energy efficiency / component lifespan please leave them in the comments or include them as part of the answer.