CHAPTER 4: Troubleshooting

 

 

Code Beeps

POST Routine Description

 

 

66h

Configure advanced cache registers

 

 

67h

Initialize Multi Processor APIC

 

 

68h

Enable external and CPU caches

 

 

69h

Setup System Management Mode (SMM) area

 

 

6Ah

Display external L2 cache size

 

 

6Bh

Load custom defaults (optional)

 

 

6Ch

Display shadow-area message

 

 

6Eh

Display possible high address for UMB recovery

 

 

70h

Display error messages

 

 

72h

Check for configuration errors

 

 

76h

Check for keyboard errors

 

 

7Ch

Set up hardware interrupt vectors

 

 

7Eh

Initialize coprocessor if present

 

 

80h

Disable onboard Super I/O ports and IRQs

 

 

81h

Late POST device initialization

 

 

82h

Detect and install external RS232 ports

 

 

83h

Configure non-MCD IDE controllers

 

 

84h

Detect and install external parallel ports

 

 

85h

Initialize PC-compatible PnP ISA devices

 

 

86h

Re-initialize onboard I/O ports

 

 

87h

Configure Motherboard Configurable Devices (optional)

 

 

88h

Initialize BIOS Area

 

 

89h

Enable Non-Maskable Interrupts (NMIs)

 

 

8Ah

Initialize Extended BIOS Data Area

 

 

8Bh

Test and initialize PS/2 mouse

 

 

8Ch

Initialize floppy controller

 

 

8Fh

Determine number of ATA drives (optional)

 

 

90h

Initialize hard-disk controllers

 

 

91h

Initialize local-bus hard-disk controllers

 

 

92h

Jump to UserPatch2

 

 

93h

Build MPTABLE for multi-processor boards

 

 

xxxi

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Gateway EC58 manual Xxxi