"Compaq.com - Compaq Presario Series Maintenance and Service Guide - Models: 1683, 1685, 1687, 1688, and 1690
|
|
|
|
|
| C6h |
| Initialize notebook docking (optional) |
|
|
|
|
|
|
|
|
|
| |
| C7h |
| Initialize notebook docking late |
|
|
|
|
|
|
|
|
|
| |
| C8h |
| Force check (optional) |
|
|
|
|
|
|
|
|
|
| |
| C9h |
| Extended checksum (optional) |
|
|
|
|
|
|
|
|
|
| |
| D2h |
| Unknown interrupts |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Code |
| Beeps |
| For Boost Block in Flash ROM |
|
|
|
|
|
|
|
|
| E0h |
|
|
| Initialize the chipset |
|
|
|
|
|
|
|
|
| E1h |
|
|
| Initialize the bridge |
|
|
|
|
|
|
|
|
| E2h |
|
|
| Initialize the CPU |
|
|
|
|
|
|
|
|
| E3h |
|
|
| Initialize system timer |
|
|
|
|
|
|
|
|
| E4h |
|
|
| Initialize system I/O |
|
|
|
|
|
|
|
|
| E5h |
|
|
| Check force recovery boot |
|
|
|
|
|
|
|
|
| E6h |
|
|
| Checksum BIOS ROM |
|
|
|
|
|
|
|
|
| E7h |
|
|
| Go to BIOS |
|
|
|
|
|
|
|
|
| E8h |
|
|
| Set Huge Segment |
|
|
|
|
|
|
|
|
| E9h |
|
|
| Initialize Multi Processor |
|
|
|
|
|
|
|
|
| EAh |
|
|
| Initialize OEM Special code |
|
|
|
|
|
|
|
|
| EBh |
|
|
| Initialize PIC and DMA |
|
|
|
|
|
|
|
|
| ECh |
|
|
| Initialize Memory type |
|
|
|
|
|
|
|
|
| EDh |
|
|
| Initialize Memory size |
|
|
|
|
|
|
|
|
| EEh |
|
|
| Shadow Boot Block |
|
|
|
|
|
|
|
|
| EFh |
|
|
| System memory test |
|
|
|
|
|
|
|
|
| F0h |
|
|
| Initialize interrupts vectors |
|
|
|
|
|
|
|
|
| F1h |
|
|
| Initialize Run Time Clock |
|
|
|
|
|
|
|
|
| F2h |
|
|
| Initialize Video |
|
|
|
|
|
|
|
|
| F3h |
|
|
| Initialize beeper |
|
|
|
|
|
|
|
|
| F4h |
|
|
| Initialize boot |
|
|
|
|
|
|
|
|
| F5h |
|
|
| Clear Huge segment |
|
|
|
|
|
|
|
|
| F6h |
|
|
| Boot to Mini DOS |
|
|
|
|
|
|
|
|
| F7h |
|
|
| Boot to Full DOS |
|
|
|
|
|
|
|
|
file:///C/SERVICE%20MANUALS/COMPAQ%20_%20chec...201685%201687%201688%201690%201694/power1.html (6 of 7)6/27/2004 2:57:45 AM