Status Indicator LEDs

A P P E N D I X B

This appendix contains information about the locations and behavior of the LEDs on the server. It describes the external LEDs that can be viewed on the outside of the server and the internal LEDs that can be viewed only with the main cover removed.

External Status Indicator LEDs

See the following figures and tables for information about the LEDs that are viewable on the outside of the server.

FIGURE B-1, FIGURE B-2 and FIGURE B-3 show and describe the front panel LEDs.

FIGURE B-4 and FIGURE B-5 show and describe the back panel LEDs.

FIGURE B-6 shows and describes the hard drive LEDs.

FIGURE B-7 and FIGURE B-8 show the locations of the internal DIMM LEDs.

FIGURE B-9 and FIGURE B-10 show the locations of the internal CPU LEDs.

Front Panel LEDs

FIGURE B-1 Sun Fire X4150 Server Front Panel LEDs

Figure Legend
1	Locator LED/Locator button: (White)	5	Hard drive map
2	Service Required LED: (Amber)	6	Rear PS LED: (Amber) Power supply fault
3	Power/OK LED: (Green)	7	System Over Temperature LED: (Amber)
4	Power button	8	Top Fan LED: (Amber) Service action required on fans

FIGURE B-2 Sun Fire X4250 Server Front Panel LEDs

FIGURE B-3 Sun Fire X4450 Server Front Panel LEDs

Figure Legend (applies to both X4250 and X4450)
1	Locator LED/Locator button: (White)	5	Rear PS LED: (Amber) Power supply fault
2	Service Required LED: (Amber)	6	System Over Temperature LED: (Amber)
3	Power/OK LED: (Green)	7	Top Fan LED: (Amber) Service action required on fans
4	Power button	8	Hard drive map

Back Panel LEDs

FIGURE B-4 Sun Fire X4150 Server Back Panel LEDs

FIGURE B-5 Sun Fire X4250 and X4450 Server Back Panel LEDs

Figure Legend (applies to all servers)
1	Power Supply LEDs:	3	Ethernet Port LEDs
	Power Supply OK: (Green)		Left side: Green indicates link activity
	Power Supply Fail: (Amber)		Right side:
	AC OK: (Green)		Green: Link is operating at maximum speed
2	System LEDs		Amber: Link is operating at less than maximum speed.
	Locator LED Button: (White)
	Service Required LED: (Amber)
	Power OK LED: (Green)

Hard Drive LEDs

FIGURE B-6 Hard Drive LEDs

Figure Legend
1	Ready to remove LED: Blue - Service action is allowed
2	Fault LED: Amber - Service action is required
3	Status LED: Green - Blinks when data is being transferred

Internal Status Indicator LEDs

The server has internal status indicators on the motherboard.

The DIMM Fault LEDs indicate a problem with the corresponding DIMM. See FIGURE B-7 and FIGURE B-8 for the LED locations.

When you press the Remind button, if there is a problem with a DIMM, the corresponding DIMM Fault LED flashes. See DIMM Fault LEDs for details.

The CPU Fault LEDs indicate a problem with the corresponding CPU. See FIGURE B-9 and FIGURE B-10 for the CPU LED locations.

When you press the Remind button, if there is a problem with a CPU, the corresponding CPU Fault LED flashes.

Note - The DIMM Fault and CPU Fault LEDs operate on stored power for up to a minute when the system is powered down, even after the AC power is disconnected, and the motherboard is out of the system. The stored power lasts for about half an hour.

FIGURE B-7 Remind Button and DIMM LEDs on X4150 and X4250 Motherboard

Figure showing remind button and motherboard DIMMs and LEDs for X4150 and X4250.

FIGURE B-8 Remind Button and DIMM LEDs on X4450 Motherboard

Figure showing remind button and motherboard DIMMs and LEDs for X4450.

FIGURE B-9 Remind Button and CPU LEDs on X4150 and X4250 Motherboard

Figure showing remind button and motherboard CPU LEDs for X4150 and X4250.

FIGURE B-10 Remind Button and CPU LEDs on X4450 Motherboard

Figure showing remind button and motherboard CPU LEDs for X4450.