Intel® Server Board SE7520JR2

Error Reporting and Handling

The following table shows memory error handling with both a mBMC and Sahalee BMC.

Table 57: Memory Error Handling mBMC vs Sahalee

Memory with RAS

Server with mBMC

mode

 

Sparing mode /

When Sparing or Mirroring occurs:

Mirroring mode

- BIOS will not report memory

 

RAS configuration to mBMC.

 

- BIOS will light the faulty DIMM

 

LED.

 

DIMMs which go off line during

 

OS runtime will be back online on

 

the next system reboot without

 

user intervention.

 

Sparing and Mirroring states are

 

not sticky across system reset.

Server with IMM Sahalee BMC

When Sparing or Mirroring occurs:

-BIOS will report memory RAS configuration to BMC.

-BIOS will light the faulty DIMM LED.

DIMMs which go off line during OS runtime will not be back online on the next system reboot.

Sparing and Mirroring states are sticky across system reset.

Setting “Memory Retest” option in BIOS Setup will re-enable off-line DIMMs.

Note: BIOS does not support Memory Data Scrubber Error.

6.2.2Memory Error Handling in non-RAS Mode

If memory RAS features are not enabled in BIOS Setup, BIOS will apply “10 SBE errors in one hour” implementation. Enabling of this implementation and RAS features are mutually-exclusive and automatically handled by system BIOS.

In non-RAS mode, BIOS maintains a counter for Single Bit ECC (SBE) errors. If ten SBE errors occur within an hour, BIOS will disable SBE detection in the chipset to prevent the System Event Log (SEL) from being filled up, and the OS from being halted.

Revision 1.0

153

 

C78844-002