A technician is troubleshooting a desktop computer that powers on, but no image appears on the monitor screen. The power indicator on the system unit is illuminated solid green. Which of the following initial actions should the technician take to help establish a theory of probable cause? (Select TWO.)
- Verify that the video cable is plugged securely into the dedicated graphics card rather than the motherboard port.Answer
- Test the monitor with a known-good video cable and display source to isolate the hardware.Answer
- CFlash the system BIOS to the newest version to ensure display adapter compatibility.
- DDocument the final solution and complete the work order ticket for the user.
Answer
The technician should verify that the video cable is plugged securely into the dedicated graphics card rather than the motherboard port, and test the monitor with a known-good video cable and display source to isolate the hardware.
Verifying basic cable orientation (ensuring connection to the discrete GPU rather than integrated video) questions the obvious, which is a key component of establishing a theory of probable cause. Additionally, swapping in known-good display cables or test monitors isolates whether the problem lies with the display hardware or the PC output.
Step-by-Step Solution
Key Concept
CompTIA Troubleshooting Methodology - Establishing a Theory of Probable Cause