Sun Firetrademark X4600 and Sun Fire X4600 M2 Servers Service ManualTable Of Contents Previous ChapterNext ChapterBook Index



A P P E N D I X  C

LEDs and Jumpers

This appendix describes the LEDs and jumpers on the Sun Fire X4600 server and the Sun Fire X4600 M2 server. The information is organized into three sections:

External LEDs

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

FIGURE C-1   Sun Fire X4600/X4600 M2 Servers Front Panel LEDs

Graphic showing the X4600/X4600 M2 Servers front panel with the status indicator LEDs called out on the upper left and on the front of the hard disk drives.



TABLE C-1   Front Panel LED Functions
LED Name Description
Locate button/LED This LED helps you to identify which system in the rack you are working on in a rack full of servers.

  • Push and release this button to make the Locate LED blink for 30 minutes.

  • Hold down the button for 5 seconds to initiate a “push-to-test” mode that illuminates all other LEDs both inside and outside of the chassis for 15 seconds.

Service Action Required LED This LED has two states:

  • Off: Normal operation.

  • Slow Blinking: An event that requires a service action has been detected. It also blinks when only one power supply is plugged in.
Power/OK LED This LED has three states:

  • Off: Server main power and standby power are off.

  • Blinking: Server is in standby power mode, with AC power applied to only the GRASP board and the power supply fans.

  • On: Server is in main power mode with AC power supplied to all components.
Front Fan Fault LED This LED lights when there is a failed front cooling fan module. LEDs on the individual fan modules indicate which fan module has failed.
Power Supply Fault LED This LED lights when:

  • Two power supplies are present in the system but only one has AC power connected. To clear this condition either plug in the second power supply or remove it from the chassis.

  • Any voltage related event occurs in the system. For CPU-related voltage errors the associated CPU Fault LED will also be illuminated.
System Overheat Fault LED This LED lights when an upper temperature limit is detected.
Hard Disk Drive Status LEDs The hard disk drives have three LEDs:

  • Top LED (blue): reserved for future use.

  • Middle LED (amber): Hard disk drive failed.

  • Bottom LED (green): Hard disk drive is operating properly.

FIGURE C-2   Sun Fire X4600/X4600 M2 Servers Back Panel LEDs

Graphic showing the X4600/X4600 M2 Servers back panel with the status indicator LEDs called out.



TABLE C-2   Back Panel LED Functions
LED Name Description
Power Supply Status LEDs The power supplies have one LED:

  • LED is on (amber): Power supply failed.

  • LED is off: AC power to power supply is operating properly.
10/100/1000 Gigabit Ethernet port LEDs (NET0 – NET3) Each connector has two LEDs:

  • Right side LED on (green): indicates link activity

  • Left side LED green: link is established at 1 gigabit

  • Left side orange: link is established at 10 or 100 megabits
10/100 Gigabit Ethernet management port (NET MGT) The connector has two LEDs:

  • Right side LED on (green): indicates link activity

  • Left side LED green: link is established at 100 megabits

  • Left side orange: link is established at 10 megabits
Locate button/LED

(Same function as on front panel)

 This LED helps you to identify which system in the rack you are working on in a rack full of servers.

  • Push and release this button to make the Locate LED blink for 30 minutes.

  • Hold down the button for 5 seconds to initiate a “push-to-test” mode that illuminates all other LEDs both inside and outside of the chassis for 15 seconds.
Service Action Required LED

(Same function as on front panel)

 This LED has two states:

  • Off: Normal operation.

  • Slow Blinking: An event that requires a service action has been detected.
Power/OK LED

(Same function as on front panel)

 This LED has three states:

  • Off: Server main power and standby power are off.

  • Blinking: Server is in standby power mode, with AC power applied to only the GRASP board and the power supply fans.

  • On: server is in main power mode with AC power supplied to all components.

FIGURE C-3   Fan Tray Fault LED Locations

System Designation of Fan Connector Boards (FT) and Fault LEDs (one on each FT)..



TABLE C-3   Fan Tray LED Functions
LED Name Description
Fan tray fault LEDs Each fan tray has one LED:

  • LED is on (amber): Fan tray failed.

  • LED is off: Fan tray is operating properly.

For more information, see Replacing a Fan Tray


Internal LEDs

Status indicator LEDs are present several places inside the chassis:

FIGURE C-4   Sun Fire X4600 Fault LED and Button Locations on the CPU module

Diagram showing the locations and designations of the fault reporting LEDs and the fault remind button on the CPU module.



TABLE C-4   CPU Module LED Functions
LED Name Description
CPU module Attention LED This LED has two states:

  • Off: CPU module and its components are operating properly.

  • Lit (amber): Either the CPU module, a DIMM, or a CPU has failed.
DIMM Fault LED

(The ejector levers on the DIMM slots contain the LEDs.)

 This LED has two states:

  • Off: DIMM is operating properly.

  • Lit (amber): DIMM has failed.
CPU Fault LED This LED has two states:

  • Off: CPU is operating properly.

  • Lit (amber): CPU has encountered a voltage or heat error condition.

FIGURE C-5   LEDs on Motherboard and GRASP board





TABLE C-5   Motherboard and GRASP Board LED Functions 
LED Name Description
GRASP board power status LED This LED has two states:

  • Off: 3.3V standby power is not reaching the GRASP board.

  • Lit (green): 3.3V standby power is reaching the GRASP board.
Motherboard auxiliary power LED (CR21) This LED has two states:

  • Off: 3.3V standby power is not reaching the motherboard.

  • Lit (green): 3.3V standby power is reaching the motherboard.
Motherboard power LEDs (CR41, CR19, CR34, and CR35) All four LEDs should be lit when system is powered up. Any other state indicates fault.
DVD activity LED (CR28) This LED has two states:

  • Off: DVD drive is inactive.

  • Lit or flickering (green): DVD drive is active.
SAS heartbeat LED (CR7) Blinks in regular pattern when SAS controller is active. Fault if not blinking after system is out of reset.
SAS Activity, Slot 0 (CR8) This LED has two states:

  • Off: SAS drive in slot 0 is inactive.

  • Lit or flickering (green): SAS drive in slot 0 is active.
SAS Activity, Slot 1 (CR6) This LED has two states:

  • Off: SAS drive in slot 1 is inactive.

  • Lit or flickering (green): SAS drive in slot 1 is active.
SAS Activity, Slot 2 (CR29) This LED has two states:

  • Off: SAS drive in slot 2 is inactive.

  • Lit or flickering (green): SAS drive in slot 2 is active.
SAS Activity, Slot 3 (CR30) This LED has two states:

  • Off: SAS drive in slot 3 is inactive.

  • Lit or flickering (green): SAS drive in slot 3 is active.
SAS Fault, Slot 0 (CR9) This LED has two states:

  • Off: SAS drive in slot 0 is present and working.

  • Lit (yellow): SAS slot 1 is empty or contains faulty drive. (Remains yellow during option ROM execution at boot.)
SAS Fault, Slot 1 (CR10) This LED has two states:

  • Off: SAS drive in slot 1 is present and working.

  • Lit (yellow): SAS slot 1 is empty or contains faulty drive. (Remains yellow during option ROM execution at boot.)
SAS Fault, Slot 2 (CR11) This LED has two states:

  • Off: SAS drive in slot 2 is present and working.

  • Lit (yellow): SAS slot 2 is empty or contains faulty drive. (Remains yellow during option ROM execution at boot.)
SAS Fault, Slot 3 (CR31) This LED has two states:

  • Off: SAS drive in slot 3 is present and working.

  • Lit (yellow): SAS slot 3 is empty or contains faulty drive. (Remains yellow during option ROM execution at boot.)

Jumpers

The server motherboard has several jumpers, described in FIGURE C-6 and TABLE C-6. Note that some jumpers are not meant to be used in the field; these are labelled “Do not use” in the table.

FIGURE C-6   Jumpers on the Motherboard





TABLE C-6   Jumper Functions 
Jumper Name Function
J32, Interlock Switch Disable Do not use.
P19, Force BIOS Recovery See Using the Force-Recovery Jumper P19.
P20, Clear Password See Resetting SP and BIOS Passwords Using Jumper P20
P21, Hard Reset Bridge to change reset button action from soft reset to hard reset.
P23, Kill Switch Disable Do not use.
P25, Clear CMOS See Using the Clear CMOS Jumper P25
P3, I2C Do not use.



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