The Asus Super Hybrid Engine is a software application that comes with Eee PC netbooks running Windows. The utility lets you adjust the computer’s clock and bus speeds so that you can squeeze more battery life or more power out of your computer, depending on your needs at the moment.

Normally, you can choose from four settings:

• Super High Performance Mode (which overclocks a 1.6GHz Intel Atom N270 CPU to run at 1.7GHz)
• High Performance Mode (1.6GHz)
• Power Saving Mode (1.2GHz)
• Auto Mode (When you’re on battery power, the system will automatically switch to Power Saving Mode, when you plug it in, the machine will switch to High Performance Mode)

But batryoperatedboy at the EeeUser forums started playing around with the Super Hybrid Engine executable file and discovered that Asus has a 5th mode hidden away: High Definition Movie Mode. Right now HD mode seems to be little more than an icon. When you try to run the computer in HD Movie mode, the system will revert to its previous settings. But it looks like Asus may have something planned for the future. Or perhaps the company had been working on an extra feature and decided to scrap it but forgot to clean out all of the code before releasing Super Hybrid Engine to the public.

via Portable Monkey