Intel® Server Board SE7520JR2 Error Reporting and Handling
Revision 1.0
C78844-002
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6.5.7 ACPI Runtime Checkpoints
ACPI checkpoints are displayed when an ACPI capable operating system either enters or
leaves a sleep state. The following table describes the type of checkpoints that may occur
during ACPI sleep or wake events:
Table 79: ACPI Runtime Checkpoints
Checkpoint Description
AC First ASL check point. Indicates the system is running in ACPI mode.
AA System is running in APIC mode.
01, 02, 03, 04, 05 Entering sleep state S1, S2, S3, S4, or S5.
10, 20, 30, 40, 50 Waking from sleep state S1, S2, S3, S4, or S5.
6.5.8 POST Progress FIFO (Professional / Advanced only)
With SE7520JR2 based platforms that utilize either the Professional or Advanced management
modules, the Sahalee BMC will maintain a RAM FIFO of the last 16 post progress codes that it
has received. Accompanying this FIFO is a timestamp that indicates when the last code was
received.
By default, the Sahalee BMC rejects duplicate codes that are received; however, the command
interface allows BIOS to explicitly indicate that the code should be stored regardless of whether
the previous code was a duplicate.
A corresponding command allows system software to be able to retrieve the contents of the
FIFO. This command can be executed via the internal and external interfaces to the Sahallee
BMC.
The POST Progress FIFO is volatile. It is cleared whenever the system loses AC power, is
powered-down (ACPI S4 or S5), or is reset.
6.5.9 Memory Error Codes
Table 80: Memory Error Codes
Tpoint Description
001h MEM_ERR_CHANNEL_B_OFF
(DIMM mismatch forced Channel B disabled)
002h MEM_ERR_CK_PAIR_OFF
(Slow DIMM(s) forced clock pair disabled)
0E1h MEM_ERR_NO_DEVICE
(No memory installed)
0E2h MEM_ERR_TYPE_MISMATCH
0E3h MEM_ERR_UNSUPPORTED_DIMM
(Unsupported DIMM type)
0E4h MEM_ERR_CHL_MISMATCH
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