protech ProX-1550, User Manual, Page: 109 / 110

Appendix C Trouble Shooting
PC-550 USER
′
S MANUAL
Page: C-7
3E : Try to turn on Level 2 cache.
Note : Some chipset may need to turn on the L2 cache in this stage. But
usually, the cache is turn on later in POST 61h.
BF : 1. Program the rest of the Chipset‘s value according to Setup. (Later Setup
Value Program).
2. If auto-configuration is enabled, programmed the chipset with pre-
defined value in the MODBINable Auto-Table.
41 : Initialize floppy disk drive controller.
42 : Initialize Hard drive controller.
43 : If it is a PnP BIOS, initialize serial & parallel ports.
45 : Initialize math coprocessor.
4E : If there is any error detected (such as video, kb....), show all the error
messages the screen & wait for user to press <F1> key.
4F : 1. If password is needed, ask for password.
2. Clear the Energy Star Logo (Green BIOS only).
50 : Write all CMOS values currently in the BIOS stack area back into the
CMOS.
52 : 1.Initialize all ISA ROMs.
2. Later PCI initializations (PCI BIOS only).
-assign IRQ to PCI devices.
-initialize all PCI ROMs.
3.PnP Initializations (PnP BIOS only).
-assign I/O, Memory, IRQ & DMA TO PnP ISA devices.
-initialize all PnP ISA ROMs.
4. Program shadows RAM according to Setup settings.
5. Program parity according to Setup setting.
6. Power Management Initialization.
-Enable/Disable global PM.
-APM interface initialization.