MSI MAG A1250GL PCIE5 ATX v3.1 PSU Review

Protection Features

OCP (Cold @ 27°C) 12V: 129A (123.92%), 11.96V
5V: 28.3A (128.64%), 5.014V
3.3V: 30A (136.36%), 3.324V
5VSB: 4.8A (160%), 4.91V
OCP (Hot @ 40°C) 12V: –
5V: 27.5A (125%), 4.993V
3.3V: 29.6A (134.55%), 3.324V
5VSB: 4.8A (160%), 4.908V
OPP (Cold @ 29°C) 1521.54W (121.72%)
OPP (Hot @ 42°C) 1443.49W (115.48%)
OTP
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

After the 5V OCP evaluation at high temperatures, the unit broke down, so I couldn’t finish the 12V OCP at high temperatures and the over temperature protection evaluation. Although OCP at 5V isn’t that high, still the platform couldn’t take it. This is why I insist for lower OCP triggering points under high temperatures, especially on the minor rails where usually OCP is set sky-high.

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