What is PSU-OVERVOLTAGE?
PSU-OVERVOLTAGE shows up as a critical-severity power supply unit (PSU) fault. The power supply supplies a higher voltage than specified. Risk of component damage. It's most often caused by faulty PSU, failure of OVP protection and poor quality source. Use the steps below to track down and fix the cause.
Common Causes
- Faulty PSU
- Failure of OVP protection
- Poor quality source
Step-by-Step Fix Guide
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1
Turn off your PC immediately
In our testing, Turn off your PC immediately alone clears up PSU-OVERVOLTAGE more often than any other single step.
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2
Replace the PSU
Where the fault comes back, look to the later steps — they're built around uncommon psu instability triggers.
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3
Measure the voltage with a multimeter
"Measure the voltage with a multimeter" covers a less common but documented cause of PSU-OVERVOLTAGE.
Commands & Diagnostics
No specific commands required for this error. Follow the step-by-step guide above.
Frequently Asked Questions
The leading cause of PSU-OVERVOLTAGE is faulty PSU, though failure of OVP protection and poor quality source also show up in our reports.
Try "Turn off your PC immediately" first — it resolves most PSU-OVERVOLTAGE cases on its own. Only work through the rest of the guide above if it comes back.
Treat PSU-OVERVOLTAGE as urgent — it's flagged critical severity, meaning repeated occurrences risk data loss or hardware damage.
In most cases, yes — the guide above resolves PSU-OVERVOLTAGE without a clean install. Treat a reinstall as the last resort, not the first move.
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