protech Prox-1260 M4 - Page 92

Appendix C Troubleshooting
Page: C-6
Prox-1260 USER
′ S MANUAL
0A : 1. Initialize the first 32 interrupt vectors with corresponding Interrupt
handlers Initialize INT no from 33-120 with Dummy(Spurious) Interrupt
Handler.
2. Issue CPUID instruction to identify CPU type.
3. Early Power Management initialization (OEM specific).
0B : 1.Verify the RTC time is valid or not.
2. Detect bad battery.
3. Read CMOS data into BIOS stack area.
4. PnP initializations including (PnP BIOS only).
-Assign CSN to PnP ISA card.
-Create resource map from ESCD.
5. Assign I/O & Memory for PCI devices (PCI BIOS only).
0C : Initialization of the BIOS Data Area (40 : 0N-40:FF).
0D : 1. Program some of the Chipset‘s value according to Setup. (Early Setup
Value Program).
2. Measure CPU speed for display & decide the system clock speed.
3. Video initialization including Monochrome ,CGA, EGA/VGA. If no
display device found, the speaker will beep.
0E : 1. Initialize the APIC (Multi-Processor BIOS only).
2. Test video RAM (If Monochrome display device found).
3. Show messages including :
-Award Logo, Copyright string, BIOS Date code & Part No.
-OEM specific sign on messages.
-Energy Star Loge (Green BIOS only).
-CPU brand, type & speed.
-Test system BIOS checksum (Non-compress Version only).
0F : DMA channel 0 test.
10 : DMA channel 1 test.
11 : DMA page registers test.
14 : Test 8254 Timer 0 Counter2.