Acer Aspire 6930G Series Service Manual page 154

POST
Code
0x72 Check status bits to see if configuration problems were
detected. If so, display error messages on the screen.
0x4F Initialize MultiBoot. Allocate memory for old and new MultiBoot
history tables.
0xCD Reclaim console vector after HW vectors initialized.
0x7D Initialize Intelligent System Monitoring.
0x7E The Coprocessor initialization test. Use the floating point
instructions to determine if a coprocessor exists instead of the
ET bit in CR0.
0xC1 Check Boot Type (Server BIOS)
0x80 Disable onboard COM and LPT ports before testing for
presence of external I/O devices.
0xCA Redirect Int 15h to enable target board to use remote keyboard
(PICO BIOS).
0x88 Initialize interrupt controller.
0x81 Run late device initialization routines.
0x87 Initialize motherboard configurable devices.
0x85 Display any ESCD read errors and configure all PnP ISA
devices.
0x82 Test and identify RS232 ports.
0x84 Test and identify parallel ports.
0x86 Initialize onboard I/O and BDA according to CMOS and
presence of external devices.
0x83 Configure Fisk Disk Controller.
0xCE Initialize digitizer device and display installed message if
successful.
0x89 Enable non-maskable interrupts.
0x8C Initialize both of the floppy disks and display an error message
if failure was detected. Check both drives to establish the
appropriate diskette types in the TrustedCore data area
0xCB Redirect Int 13h to Memory Technologies Devices such as
ROM, RAM, PCMCIA, and serial disk (PICO BIOS).
0xCD Remap I/O and memory address space for PCMCIA (PICO
BIOS).
0x90 Initialize hard-disk controller. If the CMOS ram is valid and
intact, and fixed disks are defined, call the fixed disk init routine
to initialize the fixed disk system and take over the appropriate
interrupt vectors.
0x8B Setup interrupt vector and present bit in Equipment byte.
0x95 1. Check CMOS for CD-ROM drive present
2. Activate the drive by checking for media present
3. Check sector 11h (17) for Boot Record Volume Descriptor
4. Check the boot catalog for validity
5. Pick a boot entry
6. Create a Specification Packet
0x92 Jump to UserPatch2.
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Chapter 4