Sharkoon Rebel P20 850W ATX v3.1 PSU Review

Protection Features

OCP (Cold @ 29°C) 12V: 97A (137.01%), 12.136V
5V: 29.5A (147.5%), 4.987V
3.3V: 28.3A (141.5%), 3.315V
5VSB: 6.6A (220%), 4.899V
OCP (Hot @ 44°C) 12V: 98.2A (138.7%), 12.147V
5V: 29.5A (147.5%), 4.977V
3.3V: 28.4A (142%), 3.316V
5VSB: 6.6A (220%), 4.905V
OPP (Cold @ 28°C) 1047.65W (123.25%)
OPP (Hot @ 41°C) 1057.64W (124.43%)
OTP ✓ (160°C @ secondary side)
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

The 12V OCP triggering points are pretty high, and to make matters worse, the hot triggering point is higher than the cold one! The OPP triggering points are conservative, but the hot triggering point is higher than the cold one. Lastly, the minor rails have high OCP triggering points, which are identical under cold and hot conditions, which is incorrect.

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