User’s Manual
76
ASUS Transformer Book E-Manual
The Power-On Self-Test (POST)
The Power-On Self-Test (POST) is a series of software-controlled
diagnostic tests that run when you turn on or restart your ASUS
Transformer Book. The software that controls the POST is installed as a
permanent part of the ASUS Transformer Book’s architecture.
Using POST to access BIOS and Troubleshoot
During POST, you can access the BIOS settings or run troubleshooting
options using the function keys of your ASUS Transformer Book. You
may refer to the following information for more details.
BIOS
The Basic Input and Output System (BIOS) stores system hardware
settings that are needed for system startup in the ASUS Transformer
Book.
The default BIOS settings apply to most conditions of your ASUS
Transformer Book. Do not change the default BIOS settings except in
the following circumstances:
• Anerrormessageappearsonscreenduringsystembootupand
requests you to run the BIOS Setup.
• Youhaveinstalledanewsystemcomponentthatrequiresfurther
BIOS settings or updates.
WARNING: Using inappropriate BIOS settings may result to system
instability or boot failure. We strongly recommend that you change the
BIOS settings only with the help of a trained service personnel.