You can check the power supply on your PC by removing the side panel of its case, or by checking the manual that came with it.

Thermaltake has introduced the Dr. Power III, a portable power supply tester that is compatible with the latest ATX12V v3.1 standard and includes a 12+4pin connector for testing high-power consumption ...

Before we go forward and run some of the tests that we are going to see hereinafter, let us check a few of the symptoms to understand if those tests are worth doing. We have mentioned some symptoms ...