•FP and Diagnostic LED board

•HBAs (optional)

•I/O VRM

•Cooling Fans 1-31

•Midplane board

•Interconnect board

System Build-Up Troubleshooting Procedure

If the system powers on and remains powered on, but does not enter into or pass POST or does not boot to the EFI menu, follow these steps:

1.Remove the ac power cord from each bulk power supply.

2.Extend the server from the chassis, if the chassis is racked.

3.Remove all the HDDs from the front of the chassis.

4.Remove the memory extender and CPU board FRUs.

5.Remove the top cover.

6.Remove all components except the I/O backplane board and core I/O board FRUs.

7.Plug in the ac power cords. The iLO 2 MP and system console power on.

8.Execute the iLO 2 MP:CM>DF command. The CRU IDs are listed. You should see the Alert (IPMI) event for this action as read from the SEL

9.If you do not see the Alert Level 5 (IPMI) event, but get a different high level alert, try replacing the I/O backplane board.

10.Examine the pins on the midplane board, and if necessary, replace the midplane board.

11.Remove the ac power cords.

12.Add the memory carrier with at least one rank of DIMMs. You should see the Alert (IPMI) event for this action as read from the SEL.

13.If you do see Alert level 5 “Missing CRU device - CPU 0 PIROM”, insert the CPU board CRU with at least module 0 processor installed.

14.Add the CPU board CRU and turn on system power. The cooling fans should turn on and stay on.

If the installed CRUs are all functional, the system should initiate POST on all processors. It is recommended that you view the system console output using live logs to ensure that POST is initiated and completes successfully.

If POST does not start after a few seconds, there may be a CPU board or processor problem. Typical problems show up in the SEL or FWP. If the IMPI event logs do not point to a root cause, escalate to bring in expert assistance.

CPU, Memory and SBA

All of the CPU, memory controller, and System Bus Adapter (SBA or I/O rope controller) functions reside on the processor board assembly FRU. Memory DIMMs reside on memory board FRUs. The Local Bus Adapter (LBAs or PCI-X bus controller chips) reside on the common I/O backplane CRU along with core and customer Host Bus Adapter (HBA device controller) I/O cards. This section discusses the roles of logical CPUs, physical memory ranks, and the rope interfaces in the SBA logic of the zx2 chip.

Troubleshooting the rx3600 CPU

Each rx3600 server supports one or two Intel Itanium processor modules. Each processor module contains two individual CPU cores. This results in four physical CPUs when two processor modules are installed in rx3600 servers.

158 Troubleshooting