new PC died during installation, it failed the PSU paperclip test. anything else I can check before I get a new PSU?

Understanding and Troubleshooting Power Supply Issues in a Custom PC Build

Building a new PC can be an exciting experience, but it occasionally comes with unexpected hurdles. One such challenge is dealing with power-related problems, which can be perplexing for both novices and seasoned enthusiasts alike. Recently, a builder encountered a failed power supply unit (PSU) test following a short circuit during installation. This article aims to guide you through additional troubleshooting steps you can take before replacing your PSU, ensuring a thorough approach to resolving power-related issues.

Scenario Overview

The builder reported successful initial assembly of their system, featuring an AMD Ryzen 7 9700X processor, high-performance RAM, and a robust GPU. However, during installation, a short circuit prevented the system from powering on afterward. Subsequently, a PSU paperclip test was conducted, which failed, indicating a potential PSU fault. Concerns about recurring issues once a new PSU is installed prompted the question: what other checks should be performed?

Preliminary Troubleshooting Recommendations

Verify Cable Connections
Ensure all power cables are securely connected to the motherboard, GPU, and storage devices.
Double-check that the 24-pin and 8-pin CPU power connectors are firmly seated.
Confirm that there are no loose or damaged cables that could cause short circuits or power failures.
Inspect for Short Circuits
Examine the motherboard for any visible signs of damage, such as burn marks, swollen capacitors, or bent pins.
Confirm that screws and mounting standoffs are correctly installed and not causing unintended contact with the motherboard or case.
Remove unnecessary components (e.g., extra RAM modules, peripheral cards) to isolate the problem.
Test Components Individually
Remove the motherboard from the case and set it up on an anti-static surface to rule out case grounding issues.
Attempt to power the system with minimal components: CPU, one RAM stick, and PSU. If it powers on, gradually add components back.
Test the PSU with a different compatible system, if available, to verify its functionality beyond the paperclip test.
Check Front Panel Connections
Ensure that the power switch and reset switch are properly wired to the motherboard header.
Sometimes, a faulty switch or incorrect wiring can prevent the system from turning on.
Consider BIOS and Hardware Compatibility
Verify that the motherboard BIOS is compatible with your CPU, especially if the CPU is new to the motherboard.
Look for any firmware updates that may address