HP XU800 - Manual (Page 108)

108
6 Tests and Error Messages
MaxiLife Test Sequence and Error Messages
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 memory.
The pre-boot diagnostic tests are run in order of priority with respect to
their importance to computer functions.
The first detected error displays a message on the LCD status panel. If this
happens, one of the following screens could appear.
The following diagram shows how the Pre-boot Diagnostics works when it
encounters an error.
Missing or incorrectly
installed processor or
processor terminator
Presence of processor, processor
terminator or VRM
Control of Some Voltages
: VRMs, 12V, 3.3V, 1.8V, 2.5V
VRM or CPU power supply are not connected.
If an Error Power message is displayed, a cause could be that the
power supply is not connected, or the VRM is installed with an
unpopulated CPU socket (unsupported configuration).
System Board is not connected, or
the system board needs replacing.
Control of the CPU Board
ERROR
POWER SUPPLY
ERROR
CPU SOCKET
BOARD PLL
ERROR
MaxiLife Firmware
LCD Status Panel
I 2 C Bus
Voltage CPU1, CPU2
Voltage 12V, 3.3V, 1.8V, 2.5V
CPU or Terminator
PLL Frequency
Vcc State (5V)
PGOOD (VRM output)
An error has been detected when checking the
processor and processor terminator. The
displayed error message could indicate a missing
processor or processor terminator.
System
Memory
ERROR
CPU SOCKET