Chapter 2 System Setup 172.4 Running the BIOS Setup ProgramYour panel PC is likely to have been properly set up and configuredby your dealer prior to delivery. You may still find it necessary to usethe panel PC's BIOS (Basic Input-Output System) setup program tochange system configuration information, such as the current date andtime or your type of hard drive. The setup program is stored in read-only memory (ROM). It can be accessed either when you turn on orreset the panel PC, by pressing the "Del" key on your keyboardimmediately after powering on the computer.The settings you specify with the setup program are recorded in aspecial area of memory called CMOS RAM. This memory is backedup by a battery so that it will not be erased when you turn off or resetthe system. Whenever you turn on the power, the system reads thesettings stored in CMOS RAM and compares them to the equipmentcheck conducted during the power on self-test (POST). If an erroroccurs, an error message will be displayed on screen, and you will beprompted to run the setup program.If you want to change the setup of BIOS, refer to Chapter 9 for moredetailed information.