Acer AcerPower Sd, Service Manual

Page: 60 / 91

Chapter 4 55
69h Turn on L2 cache
6Ah Reserved
6Bh Program chipset registers according to items described in Setup
& Auto-configuration table
6Ch Reserved
6Dh 1. Assign resources to all ISA PnP devices.
2. Auto assign ports to onboard COM ports if the corre-
sponding item in Setup is set to Auto .
6Eh Reserved
6Fh 1. Initialize floppy controller
2. Set up floppy related fields in 40:hardware
70h Reserved
71h Reserved
72h Reserved
73h Reserved
74h Reserved
75h Detech &install all IDE device: HDD, LS120, ZIP, CDROM...
76h (Optional feature)
Enter AWDFLASH.EXE if:
- AWDFLASH.EXE is found in floppy drive.
- ALT+F2 is prrssed.
77h Detect serial ports & parallel ports
78h Reserved
79h Reserved
7Ah Detect & install co-processor
7Bh Reserved
7Ch Init HDD write protect
7Dh Reserved
7Eh Reserved
7Fh Switch back to text mode if full screen logo is supported.
- If errors occur, report errors & wait for keys
- If no errors occur or F1 key is pressed to continue:
Clear EPA or customization logo.
80h Reserved
81h Reserved
82h 1. Call chipset power management hook.
2. Recover the text fond used by EPA logo (not for full
screen logo).
3. If password is set, ask for password.
83h Save all data in stack back to CMOS
84h Initialize ISA PnP boot devices
85h
1. USB final initialization
2. Switch screen back to text mode
Checkpoint Description