HP Kayak XU 04xx HP Kayak XU Series 04xx, Familiarization guide - Page 21

HP MaxiLife Utility Test 1 When pressing one of the LCD status panel buttons, nothing is displayed. 2 When the system is powered on, nothing is displayed. Presence of a processor in the BOOT PROC [1] processor slot. This is test is for a single processor system only. Presence of either CPU or Terminator in the processor slot. Number of installed DIMMs Control of some voltages: VRMs, 12V Test of the correct power signals to the CPU. The power supply may be OK, whereas the VRM is not. Presence of VRMs and their associated processor. Presence of a VRM in VRM socket 2. This test is for both single and dual processor systems. Check the system board clock generators (PLL). Compatibility of DIMMs. The BIOS checks that the inserted DIMMs are both compatible with one another, and compatible with the Front Side Bus frequency. Error Code LCD status panel is blank Action to Take • Check that the two cables to the LCD status panel are properly connected (refer to the system board layout for position). • Check that the PC's power cable is plugged in. NO CPU 1 • Check that the processor is correctly installed in the BOOT PROC [1] slot. CPU SOCKET • Check CPUs and Terminator and VRM of installed processor. NO RAM POWER SUPPLY POWER POWER CPU POWER CACHE • Check that the memory module is correctly installed in the memory socket. • Check the power supply connectors, VRM, CPU. In a single processor system, check that the VRM is not plugged into the terminator socket. The error message could also show: Power CPU1 and Power CPU2. • Check that the VRM, processor and terminator are correctly installed. • Check that the VRM is not plugged on a socket with a terminator (this could be the likely cause). • Check or replace the VRM. • Check the power supply unit connectors. • Check that the VRMs are correctly installed in their VRM sockets. POWER CPU 1 - Check VRMs sockets 1 and 2. POWER CPU 2 - Check VRM socket 3. • Check that the VRM is correctly installed in VRM socket 2. BOARD PLL RAM TYPE • Check the power supply connector. • Replace the system board (PLL clock generator). • Check the installed memory modules. This error occurs when mixing incompatible memory modules, for example, when installing a 66 MHz DIMM on a 350 MHz or higher system, or when mixing Unbuffered and Registered memory modules. 21