86   HP ProLiant DL580 Generation 3 Server Maintenance and Service Guide 
 
 
2.  Reseat the processor in socket 1. 
3.  Reseat the remaining processors, rebooting after each installation to identify 
any failed processors. 
 IMPORTANT:  Populate the processors in the following order: 1, 2, 
4, 3. 
 IMPORTANT:  Always install a PPM when you install a processor. 
The system fails to boot if the PPM is missing. 
4.  Replace the processor in socket 1. 
5.  Replace the processor board, if applicable. 
6.  Replace the system board. 
 IMPORTANT:  If replacing the system board or clearing NVRAM, 
you must re-enter the server serial number through RBSU ("Re-entering 
the server serial number and product ID" on page 41
). 
 
Memory-related port 85 codes 
Memory-related port 85 codes display on the media board in the format 4xh.  
 IMPORTANT:  Reboot the server after completing each numbered 
step. If the error condition continues, proceed with the next step. 
To troubleshoot memory-related error codes: 
1.  Check the memory board LEDs ("Memory board components and LEDs" on 
page 94
) for any identified errors or failed DIMMs, and take corrective 
action. 
2.  Bring the server to base configuration by removing all components that are 
not required by the server to complete POST. This process can include 
removing all: 
–  Expansion boards ("Removing a non-hot-plug expansion board" on page 
33
, "Removing a PCI-X Hot Plug expansion board" on page 57) 
–  Processors ("Removing a processor" on page 26
), except the processor 
installed in socket 1 
 IMPORTANT:  Processor socket 1 and PPM slot 1 must be 
populated at all times or the server will not function properly.