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paulktreg - December 16, 2009» Discuss this article (15)
Testing (Continued):
Efficiency and Power Factor:
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Mushkin Enhanced Volta 600W
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||||
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Output & Efficiency @ 110VAC
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||||
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DC Load (W)
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AC Load (W)
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PF
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Efficiency (%)
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Pass/Fail
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0
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7
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0.49
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N/A
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N/A
|
|
113.5
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143
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0.94
|
79
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Pass
|
|
323
|
399
|
0.99
|
81
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Pass
|
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587
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771
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0.99
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76
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Pass
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|
Mushkin Enhanced Volta 600W
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||||
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Output & Efficiency @ 230VAC
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||||
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DC Load (W)
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AC Load (W)
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PF
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Efficiency (%)
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Pass/Fail
|
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0
|
8
|
0.23
|
N/A
|
N/A
|
|
113
|
139
|
0.78
|
81
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Pass
|
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324
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389
|
0.90
|
83
|
Pass
|
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580
|
739
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0.95
|
78
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Pass
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A respectable set of results in this section for the Mushkin Enhanced Volta 600W. The power factor could be a better when supplied from 230VAC and the efficiency could be a little higher, but it meets all the requirements of the ATX12V V2.2 specification. The user manual states a maximum efficiency of 82% at a typical load on 115VAC, which is more or less what the Mushkin Enhanced Volta 600W delivers, give or take a percentage point. The Mushkin Enhanced Volta 600W does not carry 80 Plus certification, but still delivers reasonable efficiency at a level quoted in the user manual.
AC Ripple On DC Outputs:
I have consistently found the AC ripple levels on the DC rails to be more or less equal with a 110VAC or 230VAC mains supply. The results given below are for 230VAC only, but I will continue to check the levels at 110VAC during testing and publish them below if they differ in any way.
AC Ripple On 3V3 Rail at 230VAC
Oscilloscope settings: Amplitude = 2mv/div, Timebase = 5uS/div
AC Ripple On 5V0 Rail at 230VAC
Oscilloscope settings: Amplitude = 5mv/div, Timebase = 5uS/div
AC Ripple On 12V Rail at 230VAC
Oscilloscope settings: Amplitude = 5mv/div, Timebase = 5uS/div
|
Mushkin Enhanced Volta 600W
|
|||||
|
AC Ripple/Noise
|
|||||
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DC Rail
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+3V3
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+5V0
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+12V
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-12V0
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+5VSB
|
|
ATX12 Max (mV p-p)
|
50
|
50
|
120
|
120
|
50
|
|
Ripple (mV p-p)
|
6
|
15
|
15
|
20
|
20
|
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Pass/Fail
|
Pass
|
Pass
|
Pass
|
Pass
|
Pass
|
The ripple/noise levels on the Mushkin Enhanced Volta 600W are amongst some of the lowest levels I have ever seen on a power supply. Absolutely no problems here, so let's move on.
