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| CHAPTER 4: Troubleshooting |
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Code | Beeps | POST Routine Description |
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6Ah |
| Display external L2 cache size |
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6Bh |
| Load custom defaults (optional) |
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6Ch |
| Display |
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6Eh |
| Display possible high address for UMB recovery |
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70h |
| Display error messages |
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72h |
| Check for configuration errors |
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76h |
| Check for keyboard errors |
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7Ch |
| Set up hardware interrupt vectors |
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7Eh |
| Initialize coprocessor if present |
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80h |
| Disable onboard Super I/O ports and IRQs |
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81h |
| Late POST device initialization |
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82h |
| Detect and install external RS232 ports |
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83h |
| Configure |
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84h |
| Detect and install external parallel ports |
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85h |
| Initialize |
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86h |
| |
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87h |
| Configure Motherboard Configurable Devices (optional) |
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88h |
| Initialize BIOS Area |
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89h |
| Enable |
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8Ah |
| Initialize Extended BIOS Data Area |
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8Bh |
| Test and initialize PS/2 mouse |
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8Ch |
| Initialize floppy controller |
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8Fh |
| Determine number of ATA drives (optional) |
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90h |
| Initialize |
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91h |
| Initialize |
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92h |
| Jump to UserPatch2 |
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93h |
| Build MPTABLE for |
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95h |
| Install CD ROM for boot |
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96h |
| Clear huge ES segment register |
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97h |
| Fixup Multi Processor table |
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98h | Search for option ROMs. One long, two short beeps on checksum failure. | |
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99h |
| Check for SMART drive (optional) |
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9Ah |
| Shadow option ROMs |
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Page 114
Image 114
