This type of diagnostic may examine the network input card, audio module, USB port, FireWire port, wireless network card or Bluetooth module, if available. The hardware diagnostic check can include examining output voltages and current values on regulating circuitry.Ī computer hardware diagnostic may offer tests that determine if the system input output functionality, or I/O is correct. Another may concentrate on each of the system hard drives that may detect high operating temperatures or slight physical damage that most often ends in data loss or a total system fatality. Certain diagnostics may show that one memory module is reading incorrectly, or not operating. RunningĪ diagnostic on the computer's memory or hard drive can determine the cause of many problems that may first appear to originate in the system software. A computer hardware diagnostic that examines the storage components of a system can prove to be the most valuable tool in a technician’s arsenal.
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