Intel SE7520JR2 manual Light Guided Diagnostics, Revision C78844-002

Error Reporting and Handling			Intel® Server Board SE7520JR2
	Tpoint	Description
	0E5h	MEM_ERR_SIZE_MISMATCH
	0E6h	MEM_ERR_ECC_MISMATCH
	0E8h	MEM_ERR_ROW_ADDR_BITS
	0E9h	MEM_ERR_INTERNAL_BANKS
	0EAh	MEM_ERR_TIMING
	0EBh	MEM_ERR_INST_ORDER_ERR
	0ECh	MEM_ERR_NONREG_MIX
	0EDh	MEM_ERR_LATENCY
	0EEh	MEM_ERR_NOT_SUPPORTED
	0EFh	MEM_ERR_CONFIG_NOT_SUPPORTED
	0F0h	SYS_FREQ_ERR
		(Flag for Unsupported System Bus Freq)
	0F1h	DIMM_ERR_CFG_MIX
		(Usupported DIMM mix)
	0F2h	DQS_FAILURE
		(indicates DQS failure)
	0F3h	MEM_ERR_MEM_TEST_FAILURE
		(Error code for unsuccessful Memory Test)
	0F4h	MEM_ERR_ECC_INIT_FAILURE
		(Error code for unsuccessful ECC and Memory Initialization)

6.6Light Guided Diagnostics

The baseboard provides system fault/status LEDs in many areas of the board. There are fault LEDs for each DIMM slot and for each processor, and status LEDs for 5-volt stand-by and system state. Operation of some of these LEDs is dependant upon whether an IMM is installed or not. With on-board platform instrumentation, there is limited diagnostic LED support.

•In systems configured with an IMM, the CPU 1 or CPU 2 led is lit to indicate the processor is disabled. DC-Off or AC Cycle will cause the LED to turn off.

•CPU 1 and 2 LEDs are both lit to indicate the baseboard HW has discovered a configuration error. If processor mis-population is detected when using standard on-board platform instrumentation, baseboard hardware will illuminate both processor error LEDs. If an IMM (Professional or Advanced editions) is used, the Sahalee BMC will generate a series of beep codes when this condition is detected and will illuminate the processor 1 fault LED. An AC cycle will cause the LEDs to turn off.

•DIMM fault LEDs are lit by BIOS whenever BIOS disables a specific DIMM.

•The 5-Volt stand-by LED is always lit when 5-volt stand-by is present.

•The Status LED displays the state of the system. It mirrors the state of the Control Panel Status LED. Valid states include: Solid Green, Blinking Green, Blinking Amber, Solid Amber, and Off.

174	Revision 1.0
	C78844-002