HP Carrier-grade cc2300 Product Manual page 81

Table 10-3. POST Codes
Diagnostic LED Decoder
Post
G = Green, R = Red, A = Amber
Code
MSB
07h Off G
08h G Off
08h G Off
07h Off G
07h Off G
0Bh G Off
0Ch G G
0Eh G G
0Fh G G
10h Off Off
10h Off Off
11h Off Off
13h Off Off
19h G Off
1Ah G Off
23h Off Off
24h Off G
25h Off G
F2h R R
F5h R A
12h Off Off
Chapter 8
LSB
G G Uncompress various BIOS modules
Off Off Verify password checksum
Off Off Verify CMOS checksum
G G Read microcode updates from BIOS ROM
G G Initializing the processors. Set up processor registers. Select
least featured processor as the boot strap processor (BSP).
G G Hook before the keyboard BAT command is issued.
Off Off Keyboard controller test: The keyboard controller input buffer is
free. Next, issuing the BAT command to the keyboard controller.
G Off Init after keyboard test: The keyboard controller BAT command
result has been verified. Next, performing any necessary
initialization after the keyboard controller BAT command test.
G G Write command byte 8042: The initialization after the keyboard
controller BAT command test is done. The keyboard command
byte will be written next.
Off R Keyboard Init: The keyboard controller command byte is written.
Next, issuing the pin 23 and 24 blocking and unblocking
commands.
Off R Disable and initialize 8259
Off A Detect configuration mode, such as CMOS clear
G A Chipset initialization before CMOS initialization
Off A Init system timer: The 8254 timer test is over. Starting the
memory refresh test next.
G R Check refresh toggle: The memory refresh line is toggling.
Checking the 15-second on/off time next.
A G Setup interrupt vectors: Reading the 8042 input port and
disabling the MEGAKEY Green PC feature next. Making the
BIOS code segment writable and performing any necessary
configuration before initializing the interrupt vectors.
R Off Before vector: Configuration is required before interrupt vector
initialization has completed. Interrupt vector initialization is
about to begin.
R G Init interrupt vectors: Interrupt vector initialization is done.
A R Initialize SMM handler. Initialize USB emulation.
R A Validate NVRAM areas. Restore from backup if corrupted.
G R Load defaults in CMOS RAM if bad checksum or CMOS clear
jumper is detected
Description
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