5-14 Troubleshooting ProceduresTable 5-5 General Troubleshooting Procedures (continued)
Mem ory m alfunct ion 1. Check if the m emor y mod ule is ins erted
properly.
2. Replace the memory module.
3. Replace the motherboard.
External keyboard or PS/2
mouse doesn’t work
1. Check if the keyboard or the mouse are
connected properly. Check if the Y-cable is
being us ed. Pow er off syste m first befo re
plugging in the device.
2. Replace the keyboard or mouse.
3. Replace the motherboard.
PCM CIA card do es not w ork 1. Check the PC MC IA driv er insta llation for
any IRQ or IO address conflicts.
2. Check if the PC MC IA card is inser ted
prope rly and all conn ections a re set.
3. Replace the PCMCIA card.
4. Replace the motherboard.
Mouse doesn’t work 1. Check if PS/2 mouse driver is properly
installed .
2. Check the keyboard controller chip for any
cold or lo osed s oldering .
3. Replace the motherboard.
Serial device does not work 1. If using serial mouse, check if trackball
option is disabled under CMOS Setup.
2. Check if mou se driv er is insta lled
properly.
3. Check if serial device is connected
properly.
4. Replace serial device.
5. Check the I/ O contr oller chip on the
motherboard for any cold or loose
solderin g.
6. Replace the motherboard.
Parallel d evice d oes no t work 1. Check if all conne ctions a re prop erly set.
2. Check if external device is turned on.
3. Check I/O c ontroller chip on the
motherboard for any cold or loose
solderin g.
4. Replace the motherboard.