2-44 Setting Up the SystemIMPORTANT:! If the power cord is connected to a power control device such asa UPS (Uninterruptible Power Supply), make sure that the powercontrol device is powered.! The server management logic on your system board monitorsand logs system voltage changes. When plugging the powercord to the system, you may experience a 10 second delay fromthe time you press the POWER switch on the front panel to thetime the unit powers up. This is normal system operation and isrequired by the server management logic.! Do not turn off the server until characters following logo screenappear.POSTPOST (Power-On Self-Test) is the server's self-diagnostic program stored in thesystem BIOS.When you power on the server, the system automatically runs POST to checkthe mother board, ECC memory module, CPU module, keyboard, and mouse.POST also displays messages of the BIOS SETUP utility, such as the start-upmessage, while in progress.With the factory setup of the server, the logo screen appears on the display unitwhile POST is in progress. (To display the POST check results, press Esc.)Note: You can set the POST check results to appear on the displayunit without pressing Esc. To do so, select "Enabled" for "Boot-timeDiagnostic Screen" under the Advanced menu of the BIOS SETUP utility.You don't always need to check the POST check results. Check messages thatPOST displays when:! you use the server for the first time.! the server appears to fail.! the server beeps for many times between power-on and OS start-up.! an error message appears on the display unit.