Seasonic XP2 Platinum 660W Power Supply Review

Over Power Protection and Max Wattage

Power supplies often quote as having various protection mechanisms such and the most important of these is Over Power Protection. In our testing we crank up the power draw until the power supply either shuts down (meaning the OPP mechanism is present and working) or blows up (meaning it is either not present or not working). We then note the maximum power consumption before the power supply shut down (or blew up).

Those two main bulk capacitors really showing their worth here, we managed to pull over 900W from this unit before the OPP kicked in. For one, we know the OPP works and the PSU won’t explode and if you ever need to benchmark or have any power spikes, your system won’t shut off without warning.