How To Check Psu ^hot^ -

Oscilloscope (≥100MHz bandwidth), differential probe or 10x probe, load resistor.

If a PSU is more than 5–7 years old, exhibits any out-of-tolerance voltage, or causes unexplained system instability, replace it. A high-quality PSU is the cheapest insurance for the entire computer system. End of Report how to check psu

Digital multimeter (DMM) with 0.1mV resolution, paperclip for PSU jump start, PSU load (optional: resistor load bank or an old hard drive). Oscilloscope (≥100MHz bandwidth)