Light Guided Diagnostics - Intel SE7520JR2 Technical Manual

Error Reporting and Handling
Tpoint
0E5h
0E6h
0E8h
0E9h
0EAh
0EBh
0ECh
0EDh
0EEh
0EFh
0F0h
0F1h
0F2h
0F3h
0F4h
6.6

Light 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
Description
MEM_ERR_SIZE_MISMATCH
MEM_ERR_ECC_MISMATCH
MEM_ERR_ROW_ADDR_BITS
MEM_ERR_INTERNAL_BANKS
MEM_ERR_TIMING
MEM_ERR_INST_ORDER_ERR
MEM_ERR_NONREG_MIX
MEM_ERR_LATENCY
MEM_ERR_NOT_SUPPORTED
MEM_ERR_CONFIG_NOT_SUPPORTED
SYS_FREQ_ERR
(Flag for Unsupported System Bus Freq)
DIMM_ERR_CFG_MIX
(Usupported DIMM mix)
DQS_FAILURE
(indicates DQS failure)
MEM_ERR_MEM_TEST_FAILURE
(Error code for unsuccessful Memory Test)
MEM_ERR_ECC_INIT_FAILURE
(Error code for unsuccessful ECC and Memory Initialization)
C78844-002
Intel® Server Board SE7520JR2
Revision 1.0