2-28 General DescriptionPOSTPOST (Power On Self-Test) is the self-diagnosis feature saved in the I/O board of the server.When the power of the server is turned on, POST automatically runs to check the I/O board,memory board, processor, keyboard, and mouse. During POST messages indicating the starts ofseveral BIOS setup utilities may also appear.At the shipment of the server, it is set to have the NEC logo appear on the display unit during POST.Pressing Esc allows the information on the execution of POST to be displayed.NOTE: The information on the result of diagnosis by POST can bedisplayed from the start without the depression of Esc on the BIOSSetup menu. If you desire it, change the setting of "Boot-time DiagnosisScreen" on "Advanced" of the BIOS SETUP to "Enabled."It may not always necessary to check the result of POST. Check the messages which may appearduring POST in the following cases: Installation of the server Suspicion of failure Beep for many times in the period from power-on to OS start Appearance of an error message on the display unit