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54 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide • August 2008
Note – If the error is on low 1MB, the BIOS freezes after rebooting. Therefore, no
DMI log is recorded.
■ An example of the error reported by the SEL through IPMI 2.0 is as follows:
■ When low memory is erroneous, the BIOS is frozen on pre-boot low memory
test because the BIOS cannot decompress itself into faulty DRAM and execute
the following items:
■ When the faulty DIMM is beyond the BIOS's low 1MB extraction space, proper
boot happens:
■ Note the following considerations for this revision:
■ Uncorrectable ECC Memory Error is not reported.
■ Multi-bit ECC errors are reported as Memory Device Disabled.
■ On first reboot, BIOS logs a HyperTransport Error in the DMI log.
■ The BIOS disables the DIMM.
■ The BIOS sends the SEL records to the BMC.
■ The BIOS reboots again.
■ The BIOS skips the faulty DIMM on the next POST memory test.
■ The BIOS reports available memory, excluding the faulty DIMM pair.
FIGURE D-1 shows an example of a DMI log screen from BIOS Setup Page.
ipmitool> sel list
100 | 08/26/2005 | 11:36:09 | OEM #0xfb |
200 | 08/26/2005 | 11:36:12 | System Firmware Error | No usable system memory
300 | 08/26/2005 | 11:36:12 | Memory | Memory Device Disabled | CPU 0 DIMM 0
ipmitool> sel list
100 | 08/26/2005 | 05:04:04 | OEM #0xfb |
200 | 08/26/2005 | 05:04:09 | Memory | Memory Device Disabled | CPU 0 DIMM 0