Diagnostic tools and setup utilities 95
Table 11 POST error messages
Error-Code Error Message Description / Corrective Action
051 Master Hard Disk Error The IDE/ATAPI device configured as
Master in the 3rd IDE controller
could not be properly initialized by
the BIOS. This message is typically
displayed when the BIOS is trying to
detect and configure IDE/ATAPI
devices in POST.
052 Master Slave Disk Error The IDE/ATAPI device configured as
Slave in the 3rd IDE controller could
not be properly initialized by the
BIOS. This message is typically
displayed When the BIOS is trying
to detect and configure IDE/ATAPI
devices in POST.
604 System Fan not installed System fan is not installed, user
should install the system fan.
603 CPU Fan not installed CPU fan is not installed, user should
install the CPU fan. This could cause
thermal issues with the CPU.
601 BMC Not Responding BMC not responding, you can load
the optimal default value, or you
must change the LO100 card.
POST-related troubleshooting
Perform the following procedures when POST fails to run, displays error messages, or emits beep
codes.
If the POST failure is during a routine boot up, check the following:
• All external cables and power cables should be firmly plugged in.
• The power outlet to the server should be connected and works correctly.
• The server and monitor are both turned on. The bicolour status LED indicator on the front panel
must be lit up green.
• The monitor's contrast and brightness settings are correct.
• All internal cables are properly connected and all boards firmly seated.
• The processor is fully seated in its socket on the system board.
• The cooler assembly is properly installed on top of the processor.
• All memory modules are properly installed.
• If you have installed a PCI accessory board, verify that the board is firmly seated and any
switches or jumpers on the board are properly set. Refer to the documentation provided with the
accessory board.
• All internal cabling and connections are in their proper order.
• If you have changed any switches on the system board, verify that each is properly set.
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