HP PAVILION Pavilion ZE4300 Service Manual page 120

Beep Codes
3-4-3-2
3-4-3-3
3-4-3-4
3-4-4-1
3-4-4-2
3-4-4-3
3-4-4-4
4-1-1-1
4-1-1-2
4-1-1-3
4-1-1-4
4-1-2-1
4-1-2-2
4-1-2-3
4-1-2-4
4-1-3-1
4-1-3-2
4-1-3-3
4-1-3-4
4-1-4-1
4-1-4-2
4-1-4-3
4-2-1-3
4-3-1-1
4-3-1-2
4-3-1-3
4-3-1-4
4-3-2-1
4-3-2-2
4-3-2-3
4-3-2-4
4-3-3-1
4-3-3-2
4-3-3-3
4-3-3-4
4-3-4-1
4-3-4-2
4-3-4-3
4-3-4-4
4-4-1-1
4-4-1-2
4-4-1-3
4-4-1-4
4-4-2-1
4-4-2-2
4-4-2-3
4-4-2-4
1 long,
2 short
Service Manual
POST Description
Prepare Boot
Initialize SMBIOS
Initialize PnP Option ROMs
Clear parity checkers
Display MultiBoot menu
Clear screen (optional)
Check virus and backup reminders
Try to boot with INT 19
Initialize POST Error Manager (PEM)
Initialize error logging
Initialize error display function
Initialize system error handler
PnPnd dual CMOS (optional)
Initialize note dock (optional)
Initialize note dock late
Force check (optional)
Extended checksum (optional)
Redirect Int 15h to enable remote keyboard
Redirect Int 13h to Memory Technologies Devices such as ROM, RAM, PCMCIA, and serial disk
Redirect Int 10h to enable remote serial video
Re-map I/O and memory for PCMCIA
Initialize digitizer and display message
Unknown interrupt
Initialize the chipset
Initialize the bridge
Initialize the CPU
Initialize system timer
Initialize system I/O
Check force recovery boot
Checksum BIOS ROM
Go to BIOS
Set Huge Segment
Initialize Multi Processor
Initialize OEM special code
Initialize PIC and DMA
Initialize Memory type
Initialize Memory size
Shadow Boot Block
System memory test
Initialize interrupt vectors
Initialize Run Time Clock
Initialize video
Initialize System Management Manager
Output one beep
Clear Huge Segment
Boot to Mini DOS
Boot to Full DOS
Improper video configuration (reprogram EEPROM) or external ROM checksum failure
Troubleshooting and Diagnostics 3-23