User`s guide

Appendix A
6
Error Code
-
00
AMI
(00)Going to give control to INT 19H boot loader.
Error Code-01
AMI
(01)Processor register test about to start,
and NMI to be disabled,286 reg.
test about
to start.
Award
(01)P
rocessor test 1;Processor status(1FLAGS) verification;
Tests the following
processor status flags carry, zero, sign, overflow.
The BIOS will set each of these
flags, verify they are set then turn each flag off and verify it is off.
Phoenix (01)[Beep]=none 80286 register test in –progress.
Error Code - 02
AMI (02)NMI is disabled. Power on delay starting. Power on de- lay starting.286reg.
AST (02)Test CPU register.
Award
(02)Processor test 2;Read/write/verify all CPU registers except SS,SP and BP with
d
ata pattern FF&00.Determine status of manufacturing jumper.
Chips&Tech (02)Test CPU register.
Dell (02)[Beep]=1-1-3 CMOS write/read test .
Phoenix (02)Verify real-mode operation(Beep)=1-1-1-3.CPU Flags test.
Phoenix (02)[Beep]=1-1-3 CMOS write/read test in-progress or failure.
Error Code – 03
AMI
(03)Power on delay complete.
To check soft reset/power
-
on. Any initialization
before keyboard BAT is in progress. ROM BIOS checksum(32K at F800:0) passed.
AST (03)Test 8042 keyboard controller reset.
Award
(03)Initialize Chips; Disable NMI,PIE,AIE,UEI,SQWV, disable video, parity
checking, DMA; Reset math Coprocessor; Clear all page registers,
CMOS
shutdown byte; Initialize timer 0,1 and 2 including set EISA timer to a known
state; Initialize DMA controller
s 0 and 1; Initialize interrupt controller 0 and
1;Initialize EISA extended registers. Calculate BIOS EPROM and sign-
on message
checksum;
fail if not 0.Initialize EISA registers(EISA)BIOS only).Clear 8042
keyboard controller.
Chips & Tech (03)ROM did not checksum.
Phoenix&Dell
(03)Disable Non
-
Maskable Interrupt(NMI).[Beep]=1
-
1
-
4 BIOS ROM checksum
in
-
progress or failure.
Error Code – 04
AMI
(04)Any initialization before keyboard BAT is complete. Reading keyboard SYS
bit, to check soft reset/power-on. Re
ading keyboard SYS bit, to check soft
reset/power On. Keyboard controller test with and without mouse passed. 8259
initialization OK.
AST (04)Low level keyboard communication, keyboard ID verification.
Award
(04)Test memory refresh toggle;
RAM must be pe
riodically refreshed in order to
keep the memory from decaying.
This function assures that the memory refresh
function is working properly.
Test CMOS RAM I/O port interface and verify battery
power is available(bat.
status=1).Reset 8042.
Chips & Tech (04)DMA Controller failed.
Phoenix&Dell
(04)Get the CPU type (Beep)=1
-
1
-
2
-
1.CPU register test. Programmable Interval
Timer test failure.
Error Code – 05
AMI
(05)Soft reset/power
-
on determined.
Going to enable ROM. i.e.
disable shadow
RAM/Cache if any. Going to enable ROM.i.e.
disable shadow RAM/cache if
any.Chipset initialization over,DMA and interrupt controller disabled. CMOS
pending interrupt disabled.
AST (05)Read keyboard input port.
Chips & Tech (05)System timer bad.
Award
(05)Keyboard controller s
elf
-
test enable keyboard interface. Blank video,
Initialize
keyboard; Keyboard controller initialization. Initialize Chips;
Disable
NMI,PIE,AIE,UEI, SQ
- WV, disable video, parity checking, DMA; Reset math Co-
processor; Clear all page registers,CMOS shutdo
wn byte; Initialize timer 0,1 and 2
including set EISA timer to a known state; Initialize DMA controllers 0 and
1;Initialize interrupt controller 0 and 1; Initialize EISA extended Regis-
ters.Get
manufacturing status, reset if set(loop 1
-
5).
Phoenix&Dell (05)[Beep]=1-2-2 DMA initialization in-progress or failure.