
ÉlanSC310 Microcontroller Evaluation Board User’s Manual
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Table 1-1. Installation Troubleshooting
Problem
Solution
The board’s power LED does not
light when the power supply is
turned on.
The black MicroPower Off button, SW5,
needs to be pressed after power-up.
The board’s power LED does not
light even after the MicroPower Off
button, SW5 is pressed.
Check power supply connections at P25
and P26.
The red power LED is on but I see
nothing on the VGA monitor and
do not hear any beeps from the
speaker nor hear the head
synchronization on the disk drive.
Ensure processor reset by pressing the red
Reset button, SW2.
I hear a beep on the speaker but see
nothing on the VGA monitor.
Check that the monitor has AC power.
Check that the monitor is correctly
connected to the VGA display adapter.
Check that the display adapter is correctly
seated in the ISA slot.
I get the startup message on the
monitor but it says there’s a CMOS
checksum error and doesn’t finish
booting.
This is the normal condition after power-
up. The ÉlanSC310 microcontroller
evaluation board’s CMOS RAM does not
have battery backup. Follow the BIOS’
instructions to run the Setup utility to
configure the CMOS RAM. Once
configured, the CMOS RAM can be saved
by leaving the power supply on but using
the MicroPower Off button, SW5, to
power down the board.
I’ve configured the CMOS RAM
but I don’t hear any sound from the
disk drive and the system does not
boot from the diskette.
Check that the 34-wire cable to the disk
drive is properly connected at both the
disk-drive end and the board end (board
connector P27). Check that the CMOS
setup indicates that drive A is a 3.5"
1.44 Mbyte drive.
I hear the diskette being accessed
but get an error message "Non
System disk".
Check that the diskette in the drive is
indeed bootable, just as you would on a
standard PC.
evalbd.book : ch1 Page 6 Thursday, August 8, 1996 2:34 PM