External Visual Inspection Steps for Computer Diagnosis

What is the first step to perform the external visual inspection?

How should PS/2-compatible mouse interface cable connectors be identified?

What is required to ensure a firm connection for a serial mouse interface cable?

How should devices be connected to serial and parallel port connectors?

What should be ensured about network cables during the external visual inspection?

In what state should the computer, monitor, and peripherals be during the external visual inspection?

What is the first step to observe during the boot routine?

If the Num Lock indicator on the keyboard does not light up after a long pause, what should be troubleshot?

Which of the following is NOT mentioned as an indication to observe during the boot routine?

If one or more keys on the keyboard are sticking, what is the recommended action?

What should be done if the power supply fan is not running normally?

What should be done after inspecting the exterior of the computer for physical damage?

External Visual Inspection

The external visual inspection involves a quick inspection of the exterior of the computer, monitor, keyboard, peripherals, and cables.
Verify that all power cables are properly connected to the computer, monitor, and peripherals, and their power sources.
Verify that the keyboard and mouse interface cables are firmly attached to the proper connectors on the back of the computer.
Verify that network cables (if present) are properly attached.
Verify that devices attached to the serial and parallel port connectors are properly connected.
Verify that the video interface cable is firmly attached to the video connector on the back panel or to a video expansion card, and also to the connector on the back of the monitor.
Inspect all external monitor controls for any obvious damage or improper settings.
Inspect the keyboard to ensure that no keys are sticking.
Inspect the exterior of the computer, including all controls and indicators, and all user-accessible data storage devices for any signs of physical damage.

Observing the Boot Routine

Boot the system and observe the system for any indications of problems.
Check the power supply fan; if it doesn't run normally, troubleshoot the system power supply.
Watch the , , and indicators on the upper-right corner of the keyboard; they should flash momentarily and then the Num Lock indicator should light up and remain on (unless the Num Lock option is set to Off in the System Setup program).
Observe the system for beep codes, system error messages, diskette-drive and hard-disk drive access indicators during the boot routine.

Learn about the external visual inspection process for a computer system, including the monitor, keyboard, peripherals, and cables. Understand the steps involved in conducting an external visual inspection and making necessary corrections.