Acer Veriton 3500G Service Manual page 122

.
Checkpoint
23h
24h
25h
26h
27h
28h
29h
2Ah
2Bh
2Ch
2Dh
2Eh
2Fh
30h
31h
32h
33h
34h
35h
36h
37h
38h
39h
3Ah
3Bh
3Ch
3Dh
3Eh
3Fh
40h
41h
42h
112
1. Check validity of RTC value:
e.g. a value of 5Ah is an invalid value for RTC minute.
2. Load CMOS settings into BIOS stack. If CMOS checksum fails, use default value
instead.
3. Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take into
consideration of the ESCD's legacy information.
4. Onboard clock generator initialization. Disable respective clock resource to empty PCI
& DIMM slots.
5. Early PCI initialization
-Enumerate PCI bus number
-Assign memory & I/O resource
-Search for a valid VGA device and VGA BIOS, and put it into C000:0
Reserved
Reserved
Reserved
Initialize INT 09 buffer
Reserved
1. Program CPU internal MTRR (P6 & PII) for 0-640K memory address.
2. Initialize the APIC for Pentium class CPU.
3. Program early chipset according to CMOS setup. Example: onboard IDE controller.
4. Measure CPU speed.
5. Invoke video BIOS.
Reserved
Reserved
Reserved
1. Initialize multi-language
2. Put information on screen display, including Award title, CPU type, CPU speed...
Reserved
Reserved
Reserved
Reserved
Reserved
Reset keyboard except Winbond 977 series Super I/O chips.
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Test 8254.
Reserved
Test 8259 interrupt mask bits for channel 1
Reserved
Test 8259 interrupt mask bits for channel 2.
Reserved
Reserved
Description
Veriton 3500/5500/7500