HP Kayak XU 04xx HP Kayak XU Series 04xx, HP MaxiLife Hardware Monitoring - Page 5

HP MaxiLife® Hardware Monitoring HP MaxiLife Test Sequence and Error Messages HP MaxiLife Test Sequence and Error Messages When the PC is turned on (pressing the ON/OFF button), the system initiates the normal startup sequence which is composed of the following steps: • Basic pre-boot diagnostics. • BIOS launch. • POST phase. • Operating System boot phase. If any errors are detected during the startup sequence, HP MaxiLife will not necessarily 'freeze' the system. However, some critical hardware errors are fatal to the system and will prevent the system from starting (for example, 'Power', and 'Board PLL' are serious malfunctions that will prevent the CPU to work correctly) Errors that are not so critical (for example, 'CPU Socket' for missing terminator, or 'NO RAM') will be detected both during pre-boot diagnostics and POST where the BIOS boot process will abort after beeping. The MaxiLife LCD status panel will display the error. Some errors, such as the 'RAM type' error, are only detected during POST sequence, and will entail the same abort process. Finally, while the PC is working, fan and temperature controls can be reported (for example, a fan error will be reported if a fan cable is not connected). This type of error disappears dynamically when the problem has been fixed (for example, the fan cable has been reconnected). The different diagnostics are described below. Basic Pre-boot Diagnostics The first diagnostic (called basic pre-boot diagnostics) is run to check the presence of the processor(s) or terminators, VRMs, power supply, CPU Board PLL and DIMMs. The pre-boot diagnostic tests are run in order of priority with respect to their importance to computer functions. Refer to the table BIOS Launch and POST Phase, on page 9 for test sequences, failure messages and action to take to solve any problems. 5