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TROUBLESHOOTING
ULTRAMATRIX E-SERIES MANUAL
62
Troubleshooting
Computer does not boot, keyboard or mouse error received
CPU cable is loose. Re-seat cable and hit F1 to continue or reboot
computer.
Wrong cable plugged in. Keyboard and mouse cables reversed.
CPU cable is defective. Try using CPU cable from another
computer. If problem goes away, cable is defective.
Port on UltraMatrix is defective. Try using another port on the
UltraMatrix. If problem goes away, port is defective.
Port on computer is defective. Try plugging in keyboard or mouse
directly. If problem remains, computer port is defective. If computer
power status LED not lit, fuse on motherboard may be blown.
Mouse driver does not load
If PS/2 type mouse, computer must be attached to the UltraMatrix
or mouse at boot-up time in order for mouse to be recognized by
the computer. Reboot computer with the UltraMatrix powered on
and a CPU cable attached.
Incompatible or old mouse driver being used. Update mouse driver.
Can't switch computer port from keyboard
Power to the UltraMatrix was removed for less than three seconds
possibly causing keyboard to lock up. Detach and reattach
keyboard.
The mode of the keyboard does not match that of the computer.
Issue the mode command, usually 1 for IBM PS/2s, and 2 for all
others. The default setting of the UltraMatrix is mode 2. Sometimes
an incorrect mode will confuse the computer or keyboard. This
requires re-booting the computer or resetting the keyboard by
unplugging and plugging it back in.
If trying to reach a remote port, that port is busy. Try again later.
If trying to reach a remote port, the expansion cable is detached or
the remote Unit is powered off.
Keyboard port or computer port cable detached.
Wrong or missing characters from those typed
The keyboard mode is incorrect; configure computer port for
correct keyboard mode.
Can't access all functions of mouse
If Microsoft BallPoint mouse, get latest Microsoft mouse driver.