Acer Aspire X1700 and Veriton X270 Service Guide - Warranty Life

Chapter 2System UtilitiesCMOS Setup UtilityCMOS setup is a hardware configuration program built into the system ROM, called the complementary metaloxidesemiconductor (CMOS) Setup Utility. Since most systems are already properly configured andoptimized, there is no need to run this utility. You will need to run this utility under the following conditions.When changing the system configuration settingsWhen redefining the communication ports to prevent any conflictsWhen modifying the power management configurationWhen changing the password or making other changes to the security setup When a configuration error is detected by the system and you are prompted ("Run Setup"message) to make changes to the CMOS setupNOTE: If you repeatedly receive Run Setup messages, the battery may be bad. In this case, the systemcannot retain configuration values in CMOS. Ask a qualified technician for assistance.CMOS setup loads the configuration values in a battery-backed nonvolatile memory called CMOS RAM. Thismemory area is not part of the system RAM which allows configuration data to be retained when power isturned off.Before you run the CMOS Setup Utility, make sure that you have saved all open files. The system rebootsimmediately after you close the Setup.NOTE: CMOS Setup Utility will be simply referred to as “BIOS”, "Setup", or "Setup utility" in this guide.The screenshots used in this guide display default system values. These values may not be the samethose found in your system.Chapter 2 7