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5-14 Troubleshooting Procedures
Table 5-5 General Troubleshooting Procedures (continued)
Memory malfunction 1. Check if the memory module is inserted
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 used. Power off system first before
plugging in the device.
2. Replace the keyboard or mouse.
3. Replace the motherboard.
PCMCIA card does not work 1. Check the PCMCIA driver installation for
any IRQ or IO address conflicts.
2. Check if the PCMCIA card is inserted
properly and all connections are 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 loosed soldering.
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 mouse driver is installed
properly.
3. Check if serial device is connected
properly.
4. Replace serial device.
5. Check the I/O controller chip on the
motherboard for any cold or loose
soldering.
6. Replace the motherboard.
Parallel device does not work 1. Check if all connections are properly set.
2. Check if external device is turned on.
3. Check I/O controller chip on the
motherboard for any cold or loose
soldering.
4. Replace the motherboard.