Intel SE7520JR2 6.5.7ACPI Runtime Checkpoints, 6.5.8POST Progress FIFO (Professional / Advanced only), 6.5.9Memory Error Codes

Intel® Server Board SE7520JR2 Error Reporting and Handling

6.5.7ACPI 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.

6.5.8POST 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.

6.5.9Memory 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
Revision 1.0		173
		C78844-002