Troubleshooting 7-3
Diskette drive does not work
Check if diskette drive cable is connected properly.
Check if the diskette drive works on the external FDD
Connector or with the PortBar 5000.
Check diskette type if correct and not faulty.
Replace the diskette drive.
Replace the I/O board.
Hard disk drive malfunction
Check if hard disk drive is set properly on CMOS
SETUP.
Check drive connections.
Check if disk drive is good.
Replace the CPU board or I/O board.
Memory malfunction
Check if the memory module is inserted properly.
Replace the memory module.
Replace the CPU board.
External keyboard or PS/2 mouse
doesn’t work
Check if keyboard or mouse is connected properly.
Check Y-adapter if it is being used. Power off system
first before plugging in the device.
Replace the keyboard or mouse.
Replace the CPU board or I/O board.
PC card does not work
Check the PC card driver installation for any IRQ or I/O
address conflict.
Check if the PC card is inserted properly and all
connections are set.
If the PC card is a Type II card, install it in the system’s
other PC card slot.
Replace the PC card.
Replace the I/O board.
NEC VersaGlide doesn’t work
Check if PS/2 or Alps mouse driver is properly
installed.
Check VersaGlide cable inside the system if it is
inserted properly.
Remove VersaGlide and clean it.
Check the keyboard controller chip for any cold or
loose soldering.
Replace the CPU board.
