FSP Hydro PTM 650W PSU Review: Clean, Quiet Power for Mid-Range PCs

Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.

EMC Pre-Compliance Testing

To learn more about our EMI testing equipment, please check out How We Test Power Supply Units.

EMI Results - Average Detector

Some of the recorded spikes exceed this test's limits. As a result, the HPT650M fails. Fortunately, at higher frequencies, conducted EMI emissions are low.

EMI Results - Peak Detector

A couple of spikes at higher frequencies stand out in our chart. They remain under this test's maximum tolerance, though.


MORE: Best Power Supplies


MORE: How We Test Power Supplies


MORE: All Power Supply Content

Aris Mpitziopoulos
Contributing Editor

Aris Mpitziopoulos is a contributing editor at Tom's Hardware, covering PSUs.