1. Turning on the ServerExpress5800/T120d User’s Guide138Chapter 3 Setup1.1 POSTPOST (Power-On Self-Test) is a self-diagnostic program stored in the server as standard. POSTautomatically runs immediately after the server is turned on and checks the motherboard, DIMM, andprocessor (CPU). POST also displays the start-up messages of different utilities during the operation.Usually, you do not need to check the contents of POST. However, check messages displayed at POSTin the following cases.• When introducing a server• If you suspect a failure• When you hear beep many times during the time between Power ON and OS startup• When any error message is displayed1.1.1 POST sequenceExplains how POST runs in order.1. When the server is turned on, POST runs.As factory settings, the logo appears on the screen during POST.Note Keyboard becomes operable after the logo appears.2. If Enabled is specified for Password On Boot in Security menu of SETUP, you will be prompted to enterpassword after the logo is displayed. If you enter the incorrect password three times consecutively, POSTaborts. (You can no longer proceed.) In this case, power off the server, and power it on.Important Do not set a password before OS is installed.3. If the key is pressed, the logo disappears and the details of POST are displayed.Tips If Quiet Boot is Disabled from Boot menu in BIOS settings, the logo is notdisplayed without requiring key to be pressed.4. POST displays several types of message. These messages let you know that the installed CPU ormemory capacity are detected.5. After a while, the following message is displayed on the screen.Press SETUP, Internal Flash Memory, ROM Utility, NetworkBy pressing the designated function key following messages, you can call the functions below uponcompletion of POST. key: Run the SETUP. For information on the SETUP, refer to Chapter 3 (2. System BIOSSetup).