Sun Microsystems X4140 Hardware Error Handling Summary Continued, Multiple fan, Fan failure is

TABLE D-1	Hardware Error Handling Summary (Continued)
			Logged (DMI
			Log or SP
Error	Description	Handling	SEL)	Fatal?
Multiple fan	Fan failure is	The Front Fan Fault, Service Action Required,	SP SEL	Fatal
failure	detected by reading	and individual fan module LEDs are lit.
	tach signals.

Single power	When any of the
supply failure	AC/DC
	PS_VIN_GOOD or
	PS_PWR_OK
	signals are
	deasserted.

Service Action Required, and Power Supply SP SEL	Non-fatal
Fault LEDs are lit.

DC/DC power	Any	The Service Action Required LED is lit, the	SP SEL	Fatal
converter	POWER_GOOD	system is powered down to standby power
failure	signal is deasserted	mode, and the Power LED enters standby
	from the DC/DC	blink state.
	converters.
Voltage	The SP monitors	The Service Action Required LED and Power	SP SEL	Fatal
above/below	system voltages and	Supply Fault LED blink.
threshold	detects voltage
	above or below a
	given threshold.
High	The SP monitors	The Service Action Required LED and System	SP SEL	Fatal
temperature	CPU and system	Overheat Fault LED blink. The motherboard
	temperatures, and	is shut down above the specified critical level.
	detects
	temperatures above
	a given threshold.
Processor	The CPU drives the	CPLD shuts down power to the CPU. The	SP SEL	Fatal
thermal trip	THERMTRIP_L	Service Action Required LED and System
	signal upon	Overheat Fault LED blink.
	detecting an
	overtemp condition.

Boot device	The BIOS is not able
failure	to boot from a
	device in the boot
	device list.

The BIOS goes to the next boot device in the DMI Log	Non-fatal
list. If all devices in the list fail, an error
message is displayed, retry from beginning of
list. SP can control/change boot order.

Appendix D Error Handling 67