Seasonic Prime Titanium Fanless 600W PSU Review

Protection Features

Check out our PSUs 101 article to learn more about PSU protection features. Our protection features evaluation methodology is described in detail here.

Protection Features
OCP12V: 71.8 (143.6%), 12.147V
5V: 28.2A (141%), 5.038V
3.3V: 27.2A (136%), 3.336V
5VSB: 4.2A (168%), 4.793V, >65mV ripple
OPP876.88W (146.1%)
OTP✓ (160°C @ secondary side)
SCP12V: ✓
5V: ✓
3.3V: ✓
5VSB: ✓
-12V: ✓
PWR_OKOperates properly
NLO
SIPSurge: MOV
Inrush: NTC thermistor & bypass relay

This fanless PSU delivers almost 877W of power before its over-power protection (OPP) kicks in. That's impressive, to say the least. Over-current protection (OCP) on the minor rails is set normally, given our expectations. Meanwhile, it should probably be set a little lower on the 5VSB rail since ripple gets out of control with 4.2A of current.

The over-temperature protection feature is configured properly, given the lack of a cooling fan. Short-circuit protection is available on every rail, the power-good signal is accurate, and the PSU is protected from voltage spikes and large inrush currents as well.

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  • Dark Lord of Tech
    Excellent Review Aris, thanks much appreciated.