Sun Microsystems X4140, X4240, X4440 manual DIMM fault LED is off - The DIMM is operating properly

FIGURE 3-2

Note – The DIMM Fault and Motherboard 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 (or mezzanine board) is out of the system. The stored power lasts for about half an hour.

Note – Disconnecting the AC power removes the fault indication. To recover fault information look in the SP SEL, as described in the Sun Integrated Lights Out Manager 2.0 User's Guide.

■DIMM fault LED is off – The DIMM is operating properly.

■DIMM fault LED is flashing (amber) – At least one of the DIMMs in this DIMM pair has reported 24 CEs within a 24-hour period.

■Motherboard Fault LED on mezzanine is on – There is a fault on the motherboard. This LED is there because you cannot see the motherboard LEDs when the mezzanine board is present.

Note – The Motherboard Fault LED operates independently of the Press to See Fault button, and does not operate on stored power.

See FIGURE 3-1for the locations of DIMMs and LEDs on the motherboard. See for the locations of DIMMs and LEDs on the mezzanine board.

16 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide • August 2008