HP Compaq Evo N1010v Series Service Manual page 116

Beep Codes
2-1-4-4
2-2-1-1
2-2-1-2
2-2-1-3
2-2-2-1
2-2-2-2
2-2-3-1
2-2-3-2
2-2-3-3
2-2-3-4
2-2-4-1
2-3-1-1
2-3-1-3
2-3-2-1
2-3-2-3
2-3-2-4
2-3-3-1
2-3-3-2
2-3-3-3
2-3-3-4
2-3-4-1
2-3-4-3
2-4-1-1
2-4-1-3
2-4-2-3
2-4-4-1
2-4-4-2
2-4-4-3
3-1-1-1
3-1-1-2
3-1-1-3
3-1-1-4
3-1-2-1
3-1-2-2
3-1-2-3
3-1-2-4
3-1-3-1
3-24 Troubleshooting and Diagnostics
POST Description
Initialize MultiBoot
Display CPU type and speed
Initialize EISA board
Test keyboard
Set key Select if enabled
Enable USB devices
Test for unexpected interrupts
Initialize POST display service
Display prompt "Press F2 to enter SETUP"
Disable CPU cache
Test RAM between 512 and 640 KB
Test extended memory
Test extended memory address lines
Jump to UserPatch1
Configure advanced cache registers
Initialize Multi Processor APIC
Enable external and CPU caches
Set up System Management Mode (SMM) area
Display external L2 cache size
Load custom defaults (optional)
Display shadow-area message
Display possible high address for UMB recovery
Display error messages
Check for configuration errors
Check for keyboard errors
Set up hardware interrupt vectors
Initialize Intelligent System Monitoring
Initialize coprocessor if present
Disable onboard Super I/O ports and IRQs
Late POST device initialization
Detect and install external RS232 ports
Configure non-MCD IDE controllers
Detect and install external parallel ports
Initialize PC-compatible PnP ISA devices
Re-initialize onboard I/O ports
Configure Motherboard Configurable Devices (optional)
Initialize BIOS Data Area
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