Shaw PSUSH80PGOLD850 650W Power Supply Review

Load Testing

Test 1 (75.16W Load)

Rail Load Voltage Ripple
12V 2.4A 12.15V 19.8mV
5V 5.05A 5.05V 10.2mV
3.3V 4.96A 3.37V 17.8mV
−12V 0.1A −11.84V 11.4mV
5Vsb 0.51A 5.13V 13.0mV
AC Power 87.35W
Efficiency 86.05%
Power Factor 0.74
Intake Temp 27°C
Exhaust Temp 27°C

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Test 2 (104.08W Load)

Rail Load Voltage Ripple
12V 4.78A 12.15V 21.2mV
5V 5.05A 5.05V 10.6mV
3.3V 4.96A 3.37V 18.4mV
−12V 0.1A −11.85V 12.2mV
5Vsb 0.51A 5.13V 13.2mV
AC Power 117.24W
Efficiency 88.78%
Power Factor 0.82
Intake Temp 27°C
Exhaust Temp 28°C

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Test 3 (162.06W Load)

Rail Load Voltage Ripple
12V 9.56A 12.15V 25.2mV
5V 5.04A 5.05V 10.8mV
3.3V 4.96A 3.37V 19.0mV
−12V 0.1A −11.85V 13.8mV
5Vsb 0.51A 5.13V 13.8mV
AC Power 179.09W
Efficiency 90.49%
Power Factor 0.91
Intake Temp 27°C
Exhaust Temp 28°C

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Test 4 (207.11W Load)

Rail Load Voltage Ripple
12V 9.55A 12.16V 26.6mV
5V 10.06A 5.03V 15.2mV
3.3V 10.15A 3.35V 22.0mV
−12V 0.1A −11.86V 14.4mV
5Vsb 1.02A 5.1V 15.8mV
AC Power 225.57W
Efficiency 91.82%
Power Factor 0.93
Intake Temp 27°C
Exhaust Temp 29°C

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Test 5 (264.39W Load)

Rail Load Voltage Ripple
12V 14.26A 12.16V 30.0mV
5V 10.06A 5.03V 15.6mV
3.3V 10.15A 3.35V 22.0mV
−12V 0.1A −11.86V 15.6mV
5Vsb 1.02A 5.1V 16.6mV
AC Power 286.37W
Efficiency 92.32%
Power Factor 0.96
Intake Temp 27°C
Exhaust Temp 30°C

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Test 6 (319.72W Load)

Rail Load Voltage Ripple
12V 18.81A 12.16V 33.4mV
5V 10.06A 5.03V 16.4mV
3.3V 10.15A 3.35V 23.6mV
−12V 0.1A −11.87V 18.0mV
5Vsb 1.02A 5.1V 17.2mV
AC Power 345.1W
Efficiency 92.64%
Power Factor 0.97
Intake Temp 27°C
Exhaust Temp 32°C

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Test 7 (373.22W Load)

Rail Load Voltage Ripple
12V 18.81A 12.16V 39.6mV
5V 10.06A 5.03V 17.2mV
3.3V 10.15A 3.35V 24.0mV
−12V 0.1A −11.87V 18.8mV
5Vsb 1.02A 5.1V 18.6mV
AC Power 402.61W
Efficiency 92.70%
Power Factor 0.97
Intake Temp 27°C
Exhaust Temp 34°C

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Test 8 (399.36W Load)

Rail Load Voltage Ripple
12V 25.36A 12.16V 39.6mV
5V 10.06A 5.03V 16.8mV
3.3V 10.15A 3.35V 24.0mV
−12V 0.1A −11.87V 20.4mV
5Vsb 1.02A 5.1V 19.0mV
AC Power 431.06W
Efficiency 92.65%
Power Factor 0.98
Intake Temp 27°C
Exhaust Temp 35°C

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Test 9 (455.93W Load)

Rail Load Voltage Ripple
12V 30.03A 12.16V 41.8mV
5V 10.04A 5.02V 17.8mV
3.3V 10.15A 3.35V 24.2mV
−12V 0.1A −11.88V 22.6mV
5Vsb 1.02A 5.09V 20.8mV
AC Power 494.01W
Efficiency 92.29%
Power Factor 0.98
Intake Temp 27°C
Exhaust Temp 36°C

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Test 10 (511.54W Load)

Rail Load Voltage Ripple
12V 30.03A 12.16V 41.8mV
5V 10.04A 5.02V 17.8mV
3.3V 10.15A 3.35V 24.2mV
−12V 0.1A −11.88V 22.6mV
5Vsb 1.02A 5.09V 20.8mV
AC Power 494.01W
Efficiency 92.29%
Power Factor 0.98
Intake Temp 27°C
Exhaust Temp 36°C

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Test 11 (565.25W Load)

Rail Load Voltage Ripple
12V 39.07A 12.16V 49.2mV
5V 10.02A 5.01V 20.4mV
3.3V 10.09A 3.33V 27.4mV
−12V 0.1A −11.89V 25.6mV
5Vsb 1.02A 5.09V 24.2mV
AC Power 618.25W
Efficiency 91.43%
Power Factor 0.98
Intake Temp 28°C
Exhaust Temp 37°C

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Test 12 (598.41W Load)

Rail Load Voltage Ripple
12V 41.28A 12.16V 52.6mV
5V 10.02A 5.01V 22.2mV
3.3V 10.09A 3.33V 25.2mV
−12V 0.2A −11.89V 25.8mV
5Vsb 2.03A 5.07V 24.2mV
AC Power 654.7W
Efficiency 91.40%
Power Factor 0.98
Intake Temp 28°C
Exhaust Temp 38°C

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Test 13 (661.48W Load)

Rail Load Voltage Ripple
12V 46.07A 12.16V 56.4mV
5V 10.02A 5.01V 24.6mV
3.3V 10.09A 3.33V 25.4mV
−12V 0.4A −11.89V 30.6mV
5Vsb 2.53A 5.05V 26.2mV
AC Power 729.73W
Efficiency 90.65%
Power Factor 0.98
Intake Temp 28°C
Exhaust Temp 39°C

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Overload Test (775.71W Load)

Rail Load Voltage Ripple
12V 55.44A 12.16V 64.2mV
5V 10.0A 5.0V 28.8mV
3.3V 10.09A 3.33V 29.0mV
−12V 0.4A −11.9V 41.4mV
5Vsb 2.52A 5.04A 35.2mV
AC Power 864.12W
Efficiency 89.71%
Power Factor 0.99
Intake Temp 28°C
Exhaust Temp 43°C

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The 12V rail started at 12.15V and climbed to 12.16V in Test 4 – where it stayed for the rest of the load testing. That gives us worst case regulation of 0.16V, or 1.33% and a staggering variation number of 0.08% – a number that can normally only be rivaled by products from companies like Delta. The 5V rail started at 5.05V and dropped to 5.01V at full load. That gives us 0.05V (1%) worst-case regulation and a drop of 0.04V (0.8%). The 3.3V rail started out at 3.37V and dropped to 3.33V at full load giving us 0.07V (2.12%) worst-case regulation and a drop of 0.04V, or 1.21%. This is an excellent result. In fact, this unit has the most stable 12V rail of any PSU I have seen to date.

The efficiency was very good too – staying above 90% for the most part. The exhaust temperature wasn’t measurably higher than the intake during Test 1, but had warmed up by 11°C at full load – a similar result to the Thermaltake Toughpower Grand 650W. I was able to overload the power supply to 775W without incident. The 12V rail still didn’t budge, and the efficiency was still very high.

 

Rail Test 13 (661.48W) Overload Test (775.71W)
12V  shaw650gold-test13-12v  shaw650gold-OL-12v
5V  shaw650gold-test13-5v  shaw650gold-OL-5v
3.3V  shaw650gold-test13-3.3v  shaw650gold-OL-3.3v
−12V  shaw650gold-test13--12v  shaw650gold-OL--12v
5Vsb  shaw650gold-test13-5vsb  shaw650gold-OL-5vsb

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The ripple was about half the maximum allowed on all but the −12V rail (where it was much lower) at 100% load. This is a perfectly acceptable result, but if the ripple was any higher, I would score against it.

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