DeepCool PN850M ATX v3.1 PSU Review

Protection Features

OCP (Cold @ 27°C) 12V: 90.4A (128.23%), 11.947V
5V: 26.8A (134%), 5.033V
3.3V: 26.6A (133%), 3.311V
5VSB: 4.3A (143.33%), 4.95V
OCP (Hot @ 41°C) 12V: 88A (124.82%), 11.962V
5V: 25.5A (127.5%), 5.048V
3.3V: 26.3A (131.5%), 3.331V
5VSB: 4.3A (143.33%), 4.942V
OPP (Cold @ 28°C) 1050.69W (123.61%)
OPP (Hot @ 43°C) 999.13W (117.54%)
OTP ✓ (185°C @ 12V Heat Sink)
SCP 12V to Earth: ✓
5V to Earth: ✓
3.3V to Earth: ✓
5VSB to Earth: ✓
-12V to Earth: ✗
PWR_OK Proper operation
NLO
Fan Failure Protection
SIP Surge: MOV
Inrush: NTC Thermistor & Bypass relay

All protection features are properly set, and under hot conditions, OCP is set lower on all rails but 5VSB. The over power protection is also properly set. The major issue here is that we tried two samples from this line at “-12V to Earth” SCP, and both died, meaning that there is something wrong with this rail. CWT should completely remove it since it is optional and no PC part requires it anymore, as far as I know, at least.

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