POST Code LEDs

Two pairs of LEDs inside the front panel of your server (one pair for each node) display a set of two-digit hexadecimal POST codes. You can use these LEDs to discern the status of the server and diagnose server- and node-related issues. To view the LEDs, you need to look through the front panel and into the server module at the locations shown in the following illustration.

The illustration and table below show the location and describe the function of the Post Code LEDs.

image:An illustration showing the viewable locations for the code LEDs.

Legend	Name	Color	Activity
1	Node 0 Code LED	Red	For a list of POST codes, see Table 1
2	Node 1 Code LED	Red	For a list of POST codes, see Table 1

Table 1 POST Codes For the Front Panel POST Code LEDs

Code	Meaning
`4F`	Initializing IPMI BT interface.
`D4`	Testing base memory; system might hang if test fails.
`D5`	Copying Boot Block to RAM and transferring control to RAM.
`38`	Initializing different devices through DIM (Device Initialization Manager). For example, USB controllers are initialized at this point.
`75`	Initializing Int-13 and preparing for IPL detection.
`78`	Initializing IPL devices controlled by BIOS and option ROMs.
`85`	Displaying errors to the user and getting the user response for error.
`87`	Executing BIOS setup if needed / requested. Checking boot password if installed.
`00`	Passing control to OS Loader (typically INT19h).
`FF`	The flash has been updated successfully. Making flash write disabled. Disabling ATAPI hardware. Restoring CPUID value back into register. Giving control to F000 ROM at F000:FFF0h.

See Also:

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	Sun Blade X6275 M2 Server Module Service Manual