Sub-$75 Mainstream Power Supply Roundup
Features
By
Patrick Afschar, TG Publishing Team
published
Test Configuration And Short Circuit Tests
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| Test Hardware | |
|---|---|
| AC Source | Chroma Programmable AC Source 6530 |
| Power Meter | Yokogawa WT210 Digital Power Meter |
| Loads | 4 x 600 W Chroma 63306 for 12 V testing4 x 300 W Chroma 63303 for 5 and 3.3 V testing using Chroma High-Speed DC Load Mainframes 6334 |
| Oscilloscope | Tektronix DPO3034 Digital Phosphore Oscilloscope (300 MHz) |
| Test Procedure | |
| Voltages | 110 and 230 V |
| Standby Power | 0.25 A fixed current to simulate PC standby power on 5 Vsb |
| 80 PLUS Efficiency Testing | 100/50/20% load, relative to specified total output Load distribution across 12/5/3.3 V rails at the same proportion as specified for 100% testing at 110 V, according to ATX 2.3 specification |
| Efficiency at Fixed Loads | 25, 50, 85, 300, 500 W loads Load distribution across 12/5/3.3 V rails at the same proportion as specified for 100% |
| Peak Load Test | 110% Overload Testing at maximum combined 12 V |
| Temperature Test | Air intake vs. outtake temperature delta Tracking highest delta during all tests |
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| Short Circuit Protection Test (12 V) | |
|---|---|
| Model | Test Passed |
| Corsair CX400W (115 V) | yes |
| Corsair CX400W (230 V) | yes |
| FSP Saga II 400 (115 V) | yes |
| FSP Saga II 400 (230 V) | yes |
| Xigmatek NRP PC402 (115 V) | yes |
| Xigmatek NRP PC402 (230 V) | yes |
| Huntkey Jumper 450B (115 V) | yes |
| Huntkey Jumper 450B (230 V) | yes |
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