American Megatrends AMI 386SX, Preliminary Manual, Page: 19 / 52

a. KB CONTROLLER ERROR
b. CMOS INOPERATIONAL
c. 8042 GATE-A20 ERROR
d. INVALID SWITCH/ MEMORY FAILURE
e. DMA #1 ERROR
f. DMA #2 ERROR
g. DMA ERROR
h. INTR #1 ERROR
i. NO ROM BASIC
For any of the above mentioned errors the BIOS will not allow the system
proceed booting. It displays the error message and SYSTEM HALTED.
2.3 Memory Test
The BIOS performs a memory diagnostics and displays the size of the memory
being tested on the second line of the screen display. Note that you can
bypass the memory test by pressing the <ESC> key. This option would be quite
useful when the memory on the system is quite large. The memory test is not
performed when a soft reboot is executed through the keyboard or a software
program.
After testing the memory, the BIOS continues to initialize the peripherals
using the SETUP information stored in the SYSTEM CMOS RAM. The following
errors do not cause a RUN SETUP UTILITY request:
a. CH-2 timer error
b. Keyboard error
c. KB/Interface error
d. INTR #2 error
e. Display switch not proper
f. Keyboard is locked ... Unlock it
g. FDD controller failure
h. HDD controller failure
i. C: drive error
j. D: drive error
k. D: drive failure
You will be requested to "Press <F1> to RESUME" to allow you to read the
messages. After pressing F1 the BIOS will proceed by booting from bootable
device. If you wish to modify or check the setup you must reboot and press the
<DEL> key when requested.
2.4 Run System Setup (SETUP) Utility