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paulktreg - February 17, 2011» Discuss this article (4)
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Testing the PRO750W:
For more information on how we test our power supplies, please browse our testing methodology.
Short Circuit Protection:
I short circuited the 3V3, 5V0 and the 12V rail(s) in turn. The power supply did shut down, and once the short was removed and the unit switched off for at least one second, resumed normal operation. Although listed here at the beginning of the testing section, I tend to leave this test until the very end, in case it doesn't quite go to plan.
DC Output Voltage Load Regulation:
Mains Input Voltage 110VAC
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Core Edition PRO750W ( P1750SNLB9) Power Supply DC Output Voltage Load Regulation
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Supply = 110VAC/50Hz
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PSU DC Rail
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Measured Voltage(V)
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3V3
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3.37
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5V0
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5.06
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+12V
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12.17
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-12V
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11.78
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5VSB
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5.10
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Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)
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Core Edition PRO750W (P1750SNLB9) Power Supply DC Output Voltage Load Regulation
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|||||
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Supply = 110VAC/50Hz
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PSU
DC Rail
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Rail Loading Amps (A)
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Rail Loading Watts (W)
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Measured Voltage (V)
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ATX12V V2.2 Limits (V)
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Pass/Fail
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+3V3
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3.10
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10.32
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3.33
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3.135 – 3.465
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Pass
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+5V
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4.68
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23.59
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5.04
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4.75 – 5.25
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Pass
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+12V
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7.66
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92.92
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12.13
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11.4 – 12.6
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Pass
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-12V
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0.34
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3.99
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11.74
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10.8 – 13.2
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Pass
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+5VSB
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2.12
|
10.30
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4.86
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4.75 – 5.25
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Pass
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Total PSU DC Loading = 141W (19% of Rated Maximum Output Power)
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|||||
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Core Edition PRO750W (P1750SNLB9) Power Supply DC Output Voltage Load Regulation
|
|||||
|
Supply = 110VAC/50Hz
|
|||||
|
PSU
DC Rail
|
Rail Loading Amps (A)
|
Rail Loading Watts (W)
|
Measured Voltage (V)
|
ATX12V V2.2 Limits (V)
|
Pass/Fail
|
|
+3V3
|
8.32
|
27.20
|
3.27
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3.135 – 3.465
|
Pass
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|
+5V
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9.70
|
48.50
|
5.00
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4.75 – 5.25
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Pass
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+12V
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24.65
|
294.15
|
12.08
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11.4 – 12.6
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Pass
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-12V
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0.35
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4.12
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11.78
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10.8 – 13.2
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Pass
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+5VSB
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2.12
|
10.24
|
4.83
|
4.75 – 5.25
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Pass
|
|
Total PSU DC Loading = 384W (51% of Rated Maximum Output Power)
|
|||||
|
Core Edition PRO750W (P1750SNLB9) Power Supply DC Output Voltage Load Regulation
|
|||||
|
Supply = 110VAC/50Hz
|
|||||
|
PSU
DC Rail
|
Rail Loading Amps (A)
|
Rail Loading Watts (W)
|
Measured Voltage (V)
|
ATX12V V2.2 Limits (V)
|
Pass/Fail
|
|
+3V3
|
12.95
|
41.57
|
3.21
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3.135 – 3.465
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Pass
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|
+5V
|
14.78
|
73.01
|
4.94
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4.75 – 5.25
|
Pass
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+12V
|
51.89
|
623.71
|
12.02
|
11.4 – 12.6
|
Pass
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-12V
|
0.35
|
4.13
|
11.80
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10.8 – 13.2
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Pass
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+5VSB
|
2.11
|
10.08
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4.78
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4.75 – 5.25
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Pass
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Total PSU DC Loading = 752W (100% of Rated Maximum Output Power)
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Mains Input Voltage 230VAC
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Core Edition PRO750W (P1750SNLB9) Power Supply DC Output Voltage Load Regulation
|
|
|
Supply = 230VAC/50Hz
|
|
|
PSU DC Rail
|
Measured Voltage(V)
|
|
3V3
|
3.36
|
|
5V0
|
5.06
|
|
+12V
|
12.16
|
|
-12V
|
11.78
|
|
5VSB
|
5.10
|
|
Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)
|
|
|
Core Edition PRO750W (P1750SNLB9) Power Supply DC Output Voltage Load Regulation
|
|||||
|
Supply = 230VAC/50Hz
|
|||||
|
PSU
DC Rail
|
Rail Loading Amps (A)
|
Rail Loading Watts (W)
|
Measured Voltage (V)
|
ATX12V V2.2 Limits (V)
|
Pass/Fail
|
|
+3V3
|
3.19
|
10.65
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3.34
|
3.135 – 3.465
|
Pass
|
|
+5V
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4.78
|
24.09
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5.04
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4.75 – 5.25
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Pass
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+12V
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7.68
|
93.16
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12.13
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11.4 – 12.6
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Pass
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-12V
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0.34
|
3.98
|
11.72
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10.8 – 13.2
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Pass
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+5VSB
|
2.12
|
10.34
|
4.88
|
4.75 – 5.25
|
Pass
|
|
Total PSU DC Loading = 142W (19% of Rated Maximum Output Power)
|
|||||
|
Core Edition PRO750W (P1750SNLB9) Power Supply DC Output Voltage Load Regulation
|
|||||
|
Supply = 230VAC/50Hz
|
|||||
|
PSU
DC Rail
|
Rail Loading Amps (A)
|
Rail Loading Watts (W)
|
Measured Voltage (V)
|
ATX12V V2.2 Limits (V)
|
Pass/Fail
|
|
+3V3
|
8.23
|
26.99
|
3.28
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3.135 – 3.465
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Pass
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|
+5V
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9.60
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48.00
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5.00
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4.75 – 5.25
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Pass
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+12V
|
24.52
|
296.20
|
12.08
|
11.4 – 12.6
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Pass
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-12V
|
0.35
|
4.13
|
11.80
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10.8 – 13.2
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Pass
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+5VSB
|
2.12
|
10.24
|
4.83
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4.75 – 5.25
|
Pass
|
|
Total PSU DC Loading = 386W (51% of Rated Maximum Output Power)
|
|||||
|
Core Edition PRO750W (P1750SNLB9) Power Supply DC Output Voltage Load Regulation
|
|||||
|
Supply = 230VAC/50Hz
|
|||||
|
PSU
DC Rail
|
Rail Loading Amps (A)
|
Rail Loading Watts (W)
|
Measured Voltage (V)
|
ATX12V V2.2 Limits (V)
|
Pass/Fail
|
|
+3V3
|
13.20
|
42.50
|
3.22
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3.135 – 3.465
|
Pass
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+5V
|
14.57
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72.12
|
4.95
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4.75 – 5.25
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Pass
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+12V
|
52.36
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634.60
|
12.12
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11.4 – 12.6
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Pass
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-12V
|
0.35
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4.15
|
11.86
|
10.8 – 13.2
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Pass
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+5VSB
|
2.11
|
10.11
|
4.79
|
4.75 – 5.25
|
Pass
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Total PSU DC Loading = 763W (102% of Rated Maximum Output Power)
|
|||||
The PRO750W produced a decent set of results in this section. The 3V3 and 5V0 rails dropped a little below their optimum levels but still, like the other rails, remained well within the limits set down by the ATX12V V2.2 specification. No problems here so let's move on.
