Power supply · medium

How to fixPSU-RIPPLE-NOISE

Higher power ripple (Ripple)

What this error means

Higher power ripple (Ripple) (PSU-RIPPLE-NOISE) is a medium-severity fault affecting the power supply unit (PSU). The source produces higher than permitted supply voltage ripple. It causes instability or damage to the capacitors on the board. It's most often caused by cheap poor quality PSU, congested resource and faulty PFC circuit. Use the steps below to track down and fix the cause.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 3 complete
01Measure the Ripple on the 12V line with an oscilloscope

Measure the Ripple on the 12V line with an oscilloscope.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Exchange for a quality PSU (Gold/Platinum tier)

Exchange for a quality PSU (Gold/Platinum tier).

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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03Check the capacitors on the motherboard

Check the capacitors on the motherboard.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

  • Old capacitors in PSU
  • Cheap poor quality PSU
  • Congested resource
  • Faulty PFC circuit