Page 1:Features and Specifications
Page 2:Unboxing Video
Page 3:Teardown and Component Analysis
Page 4:Load Regulation, Hold-Up Time and Inrush Current
Page 5:Efficiency, Temperature and Noise
Page 6:Protection Features and DC Power Sequencing
Page 7:Cross-Load Tests and Infrared Images
Page 8:Transient Response Tests
Page 9:Ripple Measurements
Page 10:EMC Pre-Compliance Testing
Page 11:Performance, Value, Noise and Efficiency
Page 12:Final Analysis
Protection Features and DC Power Sequencing
|OCP||12V: 63.8A (117.78%), 12.039V|
5V: 31.1A (155.5%), 5.037V
3.3V: 30.2A (151%), 3.323V
5VSB: 4.2A (168%), 4.978V
|OTP||✓ (160°C @ 12V heat sink)|
|PWR_OK||Accurate (but less than 16ms)|
Inrush: NTC thermistor & bypass relay
OCP on the +12V rail is set properly, while the minor rails have high OCP triggering points. Over-power protection is configured conservatively at 120.2%. We prefer this to an unrealistically high OPP setting.
Over-temperature protection works properly, and we confirmed that short circuit protection operates as-expected on every rail. The power-good signal is accurate, but it's far too low at ~10ms. According to the ATX specification, this should be at least 16ms.
DC Power Sequencing
According to Intel’s most recent Power Supply Design Guide (revision 1.4) the +12V and 5V voltages must be equal or greater than the 3.3V rail’s output at all times.
For our first measurement, we turn the PSU off and switch it back on without load on any of its rails. In the second test, we set the PSU to standby mode, dial in a full load, and start the PSU. In the last test, with the PSU switched off, we dial in a full load before restoring power.
Everything goes smoothly in these tests; the 3.3V rail is lower than the +12V and 5V rails at all times.
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- Features and Specifications
- Unboxing Video
- Teardown and Component Analysis
- Load Regulation, Hold-Up Time and Inrush Current
- Efficiency, Temperature and Noise
- Protection Features and DC Power Sequencing
- Cross-Load Tests and Infrared Images
- Transient Response Tests
- Ripple Measurements
- EMC Pre-Compliance Testing
- Performance, Value, Noise and Efficiency
- Final Analysis