Beep Codes*

POST Description

2-1-4-3

Display BIOS copyright notice.

2-1-4-4

Initialize MultiBoot.

2-2-1-1

Display CPU type and speed.

2-2-1-2

Initialize EISA board.

2-2-1-3

Test keyboard.

2-2-2-1

Set key click if enabled.

2-2-2-2

Enable USB devices.

2-2-3-1

Test for unexpected interrupts.

2-2-3-2

Initialize POST display service.

2-2-3-3

Display prompt "Press F2 to enter SETUP".

2-2-3-4

Disable CPU cache.

2-2-4-1

Test RAM between 512 and 640 kB.

2-3-1-1

Test extended memory.

2-3-1-3

Test extended memory address lines.

2-3-2-1

Jump to UserPatch1.

2-3-2-3

Configure advanced cache registers.

2-3-2-4

Initialize Multi Processor APIC.

2-3-3-1

Enable external and CPU caches.

2-3-3-2

Set up System Management Mode (SMM) area.

2-3-3-3

Display external L2 cache size.

2-3-3-4

Load custom defaults (optional).

2-3-4-1

Display shadow-area message.

2-3-4-3

Display possible high address for UMB recovery.

2-4-1-1

Display error messages.

2-4-1-3

Check for configuration errors.

2-4-2-3

Check for keyboard errors.

2-4-4-1

Set up hardware interrupt vectors.

2-4-4-2

Initialize Intelligent System Monitoring.

2-4-4-3

Initialize coprocessor if present.

3-1-1-1

Disable onboard Super I/O ports and IRQs.

3-1-1-2

Late POST device initialization.

3-1-1-3

Detect and install external RS232 ports.

3-1-1-4

Configure non-MCD IDE controllers.

3-1-2-1

Detect and install external parallel ports.

3-1-2-2

Initialize PC-compatible PnP ISA devices.

3-1-2-3

Re-initialize onboard I/O ports.

3-1-2-4

Configure Motherboard Configurable Devices (optional).

3-1-3-1

Initialize BIOS Data Area.

3-1-3-2

Enable Non-Maskable Interrupts (NMIs).

3-1-3-3

Initialize Extended BIOS Data Area.

3-1-3-4

Test and initialize PS/2 mouse.

3-1-4-1

Initialize floppy controller.

3-1-4-4

Determine number of ATA drives (optional).

3-2-1-1

Initialize hard-disk controllers.

3-2-1-2

Initialize local-bus hard-disk controllers.

3-2-1-3

Jump to UserPatch2.

3-2-1-4

Build MPTABLE for multi-processor boards.

3-2-2-2

Install CD-ROM for boot.

3-2-2-3

Clear huge ES segment register.

3-2-2-4

Fix up Multi Processor table.

3-2-3-2

Check for SMART Drive (optional).

3-2-3-3

Shadow option ROMs.

3-2-4-1

Set up Power Management.

3-2-4-2

Initialize security engine (optional).

3-2-4-3

Enable hardware interrupts.

3-2-4-4

Determine number of ATA and SCSI drives.

3-3-1-1

Set time of day.

3-3-1-3

Check key lock.

3-3-2-1

Initialize typematic rate.

3-3-3-1

Erase F2 prompt.

3-3-3-3

Scan for F2 keystroke.

3-3-4-1

Enter SETUP.

3-3-4-3

Clear Boot flag.

3-4-1-1

Check for errors.

3-4-1-2

Inform ROMPilot about the end of POST.

3-4-1-3

POST done - prepare to boot OS.

3-4-2-2

Terminate QuietBoot (optional).

3-4-2-3

Check password (optional).

3-4-2-4

Initialize ACPI BIOS.

3-4-3-2

Prepare Boot.

3-4-3-3

Initialize SMBIOS.

3-4-3-4

Initialize PnP Option ROMs.

Service Manual

Troubleshooting and Diagnostics

3-21

Page 155 Page 157
Page 156
Image 156
HP 2153AE, 2500, 2186AF, 2183AF, 2182AT, 2182AF, 2180EA, 2180AF, 2180CA, 2179AF, 2178EA, 2178CL, 2178AF Display Bios copyright notice
Page 155 Page 157

2547EA, 2552AI, 2541AH, 2543AH, 2561AI specifications

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