CompTIA A+ Core 1 (220-1101) — Question 474

A technician replaced a failed PSU on a high-end workstation PC. Now, the PC fails to POST and does not stay turned on for more than five seconds. Which of the following power connections was most likely forgotten during installation?

Answer options

Correct answer: B

Explanation

The most likely connection that was forgotten is the 12V power supply, which is crucial for providing adequate power to the CPU and ensuring the system can boot properly. The 5V connection is less critical for initial startup, while 120V and 220V refer to AC power supply standards that are not typically connected directly to the motherboard.