Protection Features
| OCP (Cold @ 27°C) | 12V: 72.6A (134.44%), 12.01V 5V: 28.5A (142.5%), 5.105V 3.3V: 29.1A (145.5%), 3.292V 5VSB: 4.1A (136.67%), 4.928V |
| OCP (Hot @ 43°C) | 12V: 70.2A (130%), 12.01V 5V: 28.1A (140.5%), 5.105V, 135.57mV ripple 3.3V: 28.5A (142.5%), 3.294V 5VSB: 4A (133.33%), 4.925V |
| OPP (Cold @ 26°C) | 750.79W (115.51%) |
| OPP (Hot @ 43°C) | 790.2W (121.57%) |
| OTP | ✓ (110°C @ +12V heat sink) |
| SCP | 12V to Earth: ✓ 5V to Earth: ✓ 3.3V to Earth: ✓ 5VSB to Earth: ✓ -12V to Earth: ✓ |
| PWR_OK | Accurate but lower than 16ms |
| NLO | ✓ |
| Fan Failure Protection | ✗ |
| SIP | Surge: MOV Inrush: NTC Thermistor & Bypass relay |
The 12V rail’s overcurrent protection is set above 130% because this is a low-capacity unit that has to cope with increased power spikes that last long. The good thing is that OCP on the same rail drops at 130% under hot conditions. On the contrary, we have a paradox at OPP, where normally the triggering point should be lower under high temperatures, but in this unit, the opposite applies! Helly should fix that.
The OCP triggering points are set high on the minor rails, allowing for excess ripple at 5V under high temperatures. Such high ripple can affect the performance and reliability of the parts that use this rail.
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