Corsair HX1000 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: >40A (in multi-+12V rail mode)
5V: 33.1A (132.4%)
3.3V: 34.5A (138%)
5VSB: 7.0A (233.33%), 71.2mV ripple
OPP1186.13W (118.6%)
OTP✓ (160°C @ secondary side)
SCP12V: ✓
5V: ✓
3.3V: ✓
5VSB: ✓
-12V: ✓
PWR_OKOperates properly
NLO
SIPSurge: MOV
Inrush: NTC thermistor & bypass relay

The minor rails' OCP triggering points land where we'd expect them to. But it's set too high on the 5VSB rail, allowing ripple to exceed the 50mV limit.

On the other hand, OPP is set rather conservatively (not that we have a problem with this).

Finally, over-temperature protection works properly, there is SCP on all rails, the power-good signal is accurate, and the PSU works fine with no load on its outputs.

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