Appendix C Troubleshooting
Prox-1260 USER
′
S MANUAL
Page: C-7
15 : Test 8259 interrupt mask bits for channel 1.
16 : Test 8259 interrupt mask bits for channel 2.
19 : Test 8259 functionality.
30 : Detect Base Memory & Extended Memory Size.
31 : 1. Test Base Memory from 256K to 640K.
2. Test Extended Memory from 1M to the top of memory.
32 : 1.Display the Award Plug & Play BIOS Extension message (PnP BIOS only).
2.Program all onboard super I/O chips (if any) including COM ports, LPT
ports, FDD port....according to setup value.
3C : Set flag to allow users to enter CMOS Setup Utility.
3D : 1 Initialize Keyboard.
2 Install PS2 mouse.
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.
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