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Test Configuration, Hold-Up Time, Inrush Current, Peak, And Short Circuit Tests

Roundup: 12 Gaming Power Supplies Compared
By , Patrick Afschar
Test Hardware
AC SourceChroma Programmable AC Source 6530
Power MeterYokogawa WT210 Digital Power Meter
Loads4 x 600 W Chroma 63306 for 12 V testing
4 x 300 W Chroma 63303 for 5 and 3.3 V testing
using Chroma HighSpeed- DC Load Mainframes 6334 
OscilloscopeTektronix DPO3034 Digital Phosphore Oscilloscope (300 MHz)
Test Procedure
Voltages110 and 230 V
Standby Power0.25 A fixed current to simulate PC standby power
on 5 Vsb
80 PLUS Efficiency Testing100/50/20% load, relative to specified total output
Load distribution across 12/5/3.3V rails at the same proportion as specified for 100%
testing at 110 V according to ATX 2.3 specification
Efficiency at Fixed Loads25, 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 Test110% Overload Testing at maximum combined 12 V
Temperature TestAir intake vs. Outtake temperature delta
tracking highest delta during all tests


Hold-Up Time, Inrush Current, Peak, and Short Circuit Tests:


Short Circuit Protection Test (12 V)
ModelTest Passed
Antec True Power New 750 W (115 V)yes
Antec True Power New 750 W (230 V)yes
BeQuiet StraighPower 580 W (115 V)yes
BeQuiet StraighPower 580 W (230 V)yes
Chieftec NTRO 85 (115 V)yes
Chieftec NTRO 85 (230 V)yes
Cooler Master GX 750 (115 V)yes
Cooler Master GX 750 (230 V)yes
Cooler Master Silent Pro Gold 700 (115 V)yes
Cooler Master Silent Pro Gold 700 (230 V)yes
Corsair AX850 (115 V)yes
Corsair AX850 (230 V)yes
Cougar SX S700 (115 V)yes
Cougar SX S700  (230 V)yes
Enermax Modu 87+ 700 W (115 V)yes
Enermax Modu 87+ 700 W (230 V)yes
NZXT HALE90-750M 115 V)yes
NZXT HALE90-750M (230 V)yes
OCZ Fatality Champ 750 W (115 V)yes
OCZ Fatality Champ 750 W (230 V)yes
Seasonic X-Series 750 W (115 V)yes
Seasonic X-Series 750 W (230 V)yes
Sparkle SCC-750AF (115 V)yes
Sparkle SCC-750AF (230 V)yes
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