User`s manual

Am486
®
Microprocessor PCI Customer Development Platform User’s Manual
1-8
Installation Troubleshooting
Table 1-1. Installation Troubleshooting
Problem Solution
The Port 80h LED readout is blank
after I turn on the power supply.
Check power supply connectors J2 and J3.
The Port 80h LED readout is stuck
at 00. I see nothing on the VGA
monitor and do not hear any beeps
from the speaker. I do not hear the
head synchronization on the
diskette drive (if attached).
Ensure processor reset by pressing the Reset button, SW1
at location N5.
Check that the BIOS ROM and the microprocessor are
correctly installed, and that jumpers JP32 and JP33 are
both off.
The Port 80h LED readout
displayed some power-on-self-
test (POST) numbers, but then
stopped at one number before the
system finished starting.
Make sure all cables are connected properly, all adapters
are seated firmly in their slots, and the CMOS battery is
correctly installed.
See the online BIOS documentation included with your
kit for a list of POST numbers and meanings.
I hear a beep on the speaker but see
nothing on the VGA monitor.
Check that the monitor is plugged in and turned on.
Check that the monitor is correctly connected to the video
card.
Check that the video card is correctly seated in the
appropriate slot.
Check that the video card supports VGA.
I see the startup information on the
monitor but the memory test stops
at an incorrect memory size.
(1 Mbyte equals 1024 Kbyte.)
Make sure the SIMMs that came with the kit are securely
installed in the SIMM sockets.
I see the startup information on the
monitor but it says there’s a battery
problem or CMOS checksum
error and the system doesn’t finish
booting.
Follow the BIOS instructions to run the Setup utility to
configure the CMOS RAM and save settings.