3. Remove and reinstall the DVD drive. Verify that connectors are fully engaged.
4. Replace the DVD drive.
5. Re-seat cables.
SAS disk drive issues
Hard drive issues that occur during installation are usually due to rough handling. The drive may
not be correctly seated or may have been damaged in transit. If you are experiencing hard drive
issues:
1. Remove and reinsert the faulty hard drive.
2. Swap the hard drive with one from another slot or with a known good spare.
3. Remove and reinstall the hard drive backplane. Verify that connectors are fully engaged.
4. Replace the hard drive backplane.
5. Re-seat cables.
Console issues
Console issues during installations can be caused by faulty interconnections. If you are experiencing
monitor, keyboard, or mouse issues:
1. View the monitor controls. Adjust contrast and brightness as required.
2. Inspect all power and interconnecting cables. Verify that all console connectors are fully
engaged.
3. Verify that all iLO 3 MP board connectors are fully engaged.
4. Exercise the appropriate self-test features of the console software.
Troubleshooting the processor and memory
All of the processor functions reside on the system board. DIMMs reside on the memory riser. PCIe
bus controller chips reside on the I/O riser and the system board. This section discusses the roles
of logical processors, and physical memory ranks.
Troubleshooting the server processor
The server supports both quad-core and octo-core processors. Each server supports one or two
processor modules. The quad-core processor module contains four individual processor cores. When
two quad-core processors are installed in the server, the server contains eight physical
processors. Similarly, the octo-core processor module contain eight individual processor cores.
When two octo-core processors are installed in the server, the server contains sixteen physical
processors.
Furthermore, each physical processor core contains logic to support two physical threads. When
two quad-core processor modules are installed and enabled in the server, the server supports up
to sixteen threads, or the equivalent of sixteen logical processors.
Processor load order
For a minimally loaded server, one processor module must be installed in processor socket 0 on
the system board. Additional processor modules of the same revision are installed in processor
socket 1 for the server.
Processor module behaviors
Local MCA events can cause the physical processor core and one or both of the logical processors
within that processor module to fail while all other physical and their logical processors continue
operating. Double-bit data cache errors in any physical processor core causes a Global MCA
event, which, in turn, causes all logical and physical processors in the server to fail and reboot the
operating system.
HP Confidential Troubleshooting the processor and memory 79
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