Troubleshooting "can't power on" component errors on Sun Fire [TM] v1280, E2900, 3800, 4800, 4810, 6800, E4900, E6900, or Netra 1280, 1290 Servers
(Doc ID 1013120.1)
Last updated on JANUARY 03, 2020
Applies to:Sun Netra 1290 Server - Version Not Applicable and later
Sun Fire 6800 Server - Version Not Applicable and later
Sun Fire E2900 Server - Version Not Applicable and later
Sun Fire V1280 Server - Version Not Applicable and later
Sun Fire 4810 Server - Version Not Applicable and later
Failure to power on a System Board, I/O Board, Repeater, Fan Tray, or System Controller.
This document addresses situations where the system is powered on, but warnings or errors indicate that a particular component could not be powered on, or added to the hardware configuration. The component in question may be a System Board (SB), I/O Board (IB), Repeater (RP), Fan Tray (FT), or System Controller (SC).
- Sun Fire [TM] 3800, 4800, 4810, E4900, 6800, E6900
- Sun Fire [TM] v1280, E2900, and Netra [TM] 1280, 1290
- The issue may be described as a System Board (SB), I/O Board (IB), Repeater (RP), Fan Tray (FT), or even System Controller (SC) failure.
- The showenvironment command may show an "ERROR LOW" status for the component in question and a 3.3 VDC sensor value of 0.xx (in other words, less then the LoWarn value).
- This output is extremely useful for diagnosing power failure events when showlogs data has scrolled off the error buffer (when the other symptoms described below are not present in error logs for any number of reasons).
- The example below indicates an ERROR LOW status for SB0 and SB2 is also provided to show what "normal" values are in relation:
lom> showenvironment -v Slot Device Sensor Min LoWarn Value HiWarn Max Units Age Status ------- ---------- ------------ ------ ------ ------ ------ ------ --------- ------- ------ ***** Results truncated for this example ***** /N0/SB0 Board 0 3.3 VDC 0 2.97 3.13 0.49 3.47 3.63 Volts DC 5 min *** ERROR LOW *** ***** Results truncated for this example ***** /N0/SB2 Board 0 1.5 VDC 0 1.35 1.42 1.51 1.58 1.65 Volts DC 9 sec OK /N0/SB2 Board 0 3.3 VDC 0 2.97 3.13 3.27 3.47 3.63 Volts DC 9 sec OK
- The error would result in the failure of a component to be powered on with warnings similar to the following (messages in BOLD TEXT are the key to focus on):
Dec 07 12:13:20 Main-SC Platform.SC: Attempt to power up /N0/IB9 failed: /N0/IB9 1.5V DC failed, observed: 0.0 volts /N0/IB9 3.3V DC failed, observed: 0.58 volts /N0/IB9: powered on
Sat Sep 27 06:16:24 sc lom: [ID 395834 local0.error] Attempt to power up /N0/SB0 failed: /N0/SB0 3.3V DC failed, observed: 0.15 volts
- The issue could cause "setkeyswitch on" to fail because the board can not be powered on.
- There may be amber LEDs lit ("wrench" or warning LED) on system components.
- There may be accompanying messages on the system console or in the SC log files (showlogs) indicating (key messages are in BOLD TEXT):
Mar 09 14:12:30 Sunfire Platform.SC: [ID 920508 local0.notice] CPCI I/O Board (F3800) at /N0/IB8 Device poll caused: sun.serengeti.FailedHwException: (SdcAsic)Asic.getTemp: Path broken between CBH and SDC: IB8.sdc.10 (13000010)
Mar 09 14:12:31 Sunfire Platform.SC: [ID 818977 local0.notice] /N0/IB8, sensor status, outside acceptable limits (7,1,0x503080d00050000)
Wed Oct 01 21:56:10 sc lom: [ID 390680 local0.notice] CPU Board V3 at /N0/SB0 Device poll caused: sun.serengeti.HpuFailedException: CpuVoltageA2D.getOutputVoltage: sun.serengeti.CommException: I2cComm.readCmd: Path broken between CBH and SDC: SB0.sbbc1.regs.c0 (102000c0)
Wed Oct 01 21:56:10 sc lom: [ID 336982 local0.notice] Device will not be polled
Wed Oct 01 21:56:10 sc lom: [ID 120592 local0.notice] /N0/SB0, sensor status, outside acceptable limits (7,1,0x207000d00070000)
Situations excluded from this document:
- The entire system can not be powered on; See Document 1010053.1 for instructions on troubleshooting if your system will not power on.
- Power Supply warnings or errors; See Document 1007049.1 for instructions on troubleshooting errors or warnings associated to a Power Supply Unit.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!