Power supply · critical

How to fixSCP-TRIPPED

Short circuit protection (SCP) activated

What this error means

Short circuit protection (SCP) activated (SCP-TRIPPED) is a critical-severity fault affecting the power supply unit (PSU). The source has detected a physical short circuit, immediately disconnects the power supply, the PC does not respond to the button at all. The usual suspects are poorly connected connector, melted EPS/PCIe connector and sunken screw under the base plate (cracking about case). Work through the steps below in order.

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 2 complete
01Disconnect everything except the board and try to turn on (so-called breadboarding)

Disconnect everything except the board and try to turn on (so-called breadboarding).

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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02Check the connectors for signs of melting and blackening

Check the connectors for signs of melting and blackening.

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

  • Poorly connected connector
  • Melted EPS/PCIe connector
  • Sunken screw under the base plate (cracking about case)