220-1002 · Question #506
Which of the following should be replaced after a voltage spike?
The correct answer is C. Power supply. The power supply unit (PSU) should be replaced after a voltage spike. The PSU is the first component inside a computer to receive power from the wall and is responsible for regulating and converting AC power to the DC voltages the components need. A voltage spike can overwhelm…
Question
Which of the following should be replaced after a voltage spike?
Options
- ASurge suppressor
- BBattery backup
- CPower supply
- DElectrical cable
How the community answered
(41 responses)- A5% (2)
- C93% (38)
- D2% (1)
Explanation
The power supply unit (PSU) should be replaced after a voltage spike. The PSU is the first component inside a computer to receive power from the wall and is responsible for regulating and converting AC power to the DC voltages the components need. A voltage spike can overwhelm the PSU's internal protection circuits, causing damage to capacitors, diodes, or other internal components - even if the unit appears to still function. A damaged PSU can subsequently deliver unstable or incorrect voltages, potentially harming other components. Note: Surge suppressors (A) are also commonly replaced after absorbing a major spike, as their Metal Oxide Varistors (MOVs) degrade with each event. However, the component most likely directly damaged inside the machine by the spike is the PSU.
Topics
Community Discussion
No community discussion yet for this question.