Power supply · critical

How to fixPWR-CABLE-MELT

Soldering the power connector

What this error means

PWR-CABLE-MELT shows up as a critical-severity power supply unit (PSU) fault. The plastic connector (typically 12VHPWR or older PCIe) has melted due to contact resistance. This usually traces back to too much bent cable (in a small space) and low quality pins. 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 3 complete
01Stop using your PC immediately

Stop using your PC immediately.

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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02Replace the wiring (use only cables from the source manufacturer!)

Replace the wiring (use only cables from the source manufacturer!).

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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03Thoroughly clean the port on the GPU and make sure it is not burnt

Thoroughly clean the port on the GPU and make sure it is not burnt.

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

  • Not clicked connector
  • Too much bent cable (in a small space)
  • Low quality pins