Port problems are typically diagnosed with
a slow performing or inoperative peripheral device. There are several
common symptoms:
- Completely inoperative port
- "Device not found error" error message
- Peripheral device is slow, or performance is bad
In general, port problems can be attributed to one of the
following situations:
- A bad cable connection
- Peripheral device is inoperative
- Software problems
- Outdated or missing drivers
- Bad port
Common port/connection problems are usually found on the
following ports:
- Parallel (IEEE 1284)
- Serial
- USB
- FireWire (IEEE1394)
- AGP Video:
These ports are variously discussed in Chapter 2, "How
Computers Work", and Chapter 3, "Assembling a Computer".