Table 17. | POST Code - Port 80h Codes |
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| Note: | G=Green, R=Red, |
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Post | A=Amber |
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Code | MSB |
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60h | Off | R |
| R |
| Off |
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| Test 8237 DMA Controller the DMA page register test passed. |
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| Performing the DMA Controller 1 base register test next. | |||||
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65h | Off |
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| G |
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| Init 8237 DMA Controller the DMA controller 2 base register test |
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| passed. Programming DMA controllers 1 and 2 next. | |||||
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7Fh | G | A | A |
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| Extended NMI Enable: extended NMI source enabling is in progress. | ||
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| Enable Mouse and Keyboard: the keyboard test has started. |
80h | R | Off | Off |
| Off |
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| Clearing the output buffer and checking for stuck keys. Issuing the | |
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| keyboard reset command next. |
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81h | R | Off | Off |
| G |
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| Keyboard Interface Test: a keyboard reset error or stuck key was | |
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| Check Stuck Key Enable Keyboard: the keyboard controller interface |
82h | R | Off | G |
| Off |
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| test completed. Writing the command byte and initializing the circular | |
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| buffer next. |
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83h | R | Off | G |
| G |
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| Disable Parity NMI the command byte was written and global data | |
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| initialization has completed. Checking for a locked key next | ||||||
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84h | R | G | Off |
| Off |
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| Verify RAM Size: checking for a memory size mismatch with CMOS | |
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| RAM data next. | ||||||
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84h | R | G | Off |
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| Check ATA cable type presence of ATAPI devices. | ||
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84h | R | G | Off |
| Off |
| Display keyboard message. | ||
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16h | Off | G | G |
| R |
| Display IDE mass storage devices. | ||
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17h | Off | G | G |
| A |
| Display USB mass storage devices. | ||
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85h | R | G | Off | G |
| Report the first set of POST errors to error manager. | |||
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86h | R | G | G | Off |
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| Boot Password Check: the password was checked. Performing any | ||
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| required programming before Setup next. | |||||||
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8Dh | A | G | Off | G |
| OEM Patch 9. | |||
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8Dh | A | G | Off | G |
| Set Printer | |||
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8Dh | A | G | Off | G |
| Init FDD Devices: resetting the hard disk controller next. | |||
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95h | R | G | Off | A |
| Lock out PS/2 keyboard/mouse if unattended start is enabled. | |||
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92h | R | Off | G | R |
| Option ROM scan. | |||
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| Init Boot Devices: the adapter ROM had control and has now |
98h | A |
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| returned control to BIOS POST Performing any required processing | |
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| after the option ROM returned control. |
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9Bh | A | Off | G | A |
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| Float Processor Initialize: performing any required initialization | ||
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9Eh | A | G | G | R |
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| Enable Interrupts 0,1,2: checking the extended keyboard, keyboard | ||
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| ID, and NUM Lock key next. Issuing the keyboard ID command next. | |||||||
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| continued |
POST Error Codes, Messages and FRU to Failure Information | 101 |
