HP Dx5150 HP Business Desktop dx5150 Series Service Reference Guide, 1st Editi - Page 13

2 Setup Utilities and Diagnostics Features Setup Utilities (F10) and diagnostic features provide information needed about the computer system when contacting Customer Support. You can also use these tools to: ■ Change factory default settings and to set or change the system configuration, which may be necessary when you add or remove hardware. ■ Determine if all of the devices installed on the computer are recognized by the system and are functioning properly. ■ Determine information about the operating environment of the computer. ■ Solve system configuration errors detected but not automatically fixed during the Power-On Self-Test (POST). ■ Establish and manage passwords and other security features. ■ Establish and manage energy-saving timeouts. ✎ All features identified in this chapter may not be available on all HP products. 2.1 Power-On Self-Test (POST) POST is a series of diagnostic tests that runs automatically when the system is turned on. POST checks the following items to ensure that the computer system is functioning properly: ■ Keyboard ■ Memory modules ■ Diskette drives ■ All mass storage devices ■ Processors ■ Controllers ✎ If the Power-On Password is set, a text box password prompt appears on the screen while POST is running. You must enter the password before continuing. Refer to Chapter 3, Section 3.1, "Initial Configuration and Deployment." for information on setting, deleting, or bypassing the password. If POST finds an error in the system, an audible and/or visual message occurs. For POST error messages and their solutions, refer to Appendix C, "POST Error Messages." Service Reference Guide, dx5150 361685-001 2-1