BIOS | BIOS Post Codes |
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Post Code | Description |
52 | Test keyboard |
54Set key click if enabled
55Enable USB devices
58Test for unexpected interrupts
59Initialize POST display service
5A | Display prompt "Press F2 to enter SETUP" |
5B | Disable CPU cache |
5C | Test RAM between 512KB and 640KB |
60 | Test extended memory |
62 | Test extended memory address lines |
64 | Jump to UserPatch1 |
66Configure advanced cache registers
67Initialize Multi Processor APIC
68Enable external and CPU caches
69Setup system management mode (SMM) area
6A | Display external L2 cache size |
6B | Load custom defaults (optional) |
6C | Display shadow area message |
6E | Display possible high address for UMB recovery |
70 | Display error messages |
72 | Check for configuration errors |
76 | Check for keyboard errors |
7C | Set up hardware interrupt vectors |
7D | Initialize Intelligent System Monitoring |
7E | Initialize coprocessor if present |
80Disable onboard super I/O ports and IRQ’s
81Late POST device initialization
82Detect and install external RS232 ports
83Configure non−MCD IDE controllers
84Detect and install external parallel ports
98 | PENT/ATCA−717 |
