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RSS FeedsCorsair AX850 850W Power Supply Review
paulktreg - September 22, 2010» Discuss this article (0)
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Testing:
For more information on how we test our power supplies, please browse our testing methodology.
Electrical Safety:
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Electrical Safety Test Class 1
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Manufacturer/Model
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Pass/Fail
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Corsair AX850
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Pass
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Short Circuit Protection:
I short circuited the 3V3, 5V0, and the 12V 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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Corsair AX850 850W (CMPSU-850AX) 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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3.39
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5V0
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5.04
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+12V
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12.23
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-12V
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11.88
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5VSB
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5.11
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Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)
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Corsair AX850 850W (CMPSU-850AX) DC Output Voltage Load Regulation
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|||||
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Supply = 110VAC/50Hz
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|||||
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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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3.17
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10.68
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3.37
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3.135 – 3.465
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Pass
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+5V
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4.70
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23.64
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5.03
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4.75 – 5.25
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Pass
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+12V
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10.20
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124.44
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12.20
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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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4.15
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11.85
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10.8 – 13.2
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Pass
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+5VSB
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2.12
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10.45
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4.93
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4.75 – 5.25
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Pass
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Total PSU DC Loading = 173W (19% of Rated Maximum Output Power)
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|||||
|
Corsair AX850 850W (CMPSU-850AX) 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
|
3.16
|
10.68
|
3.38
|
3.135 – 3.465
|
Pass
|
|
+5V
|
4.66
|
23.35
|
5.01
|
4.75 – 5.25
|
Pass
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|
+12V
|
31.76
|
387.47
|
12.20
|
11.4 – 12.6
|
Pass
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-12V
|
0.35
|
4.15
|
11.87
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
2.11
|
10.29
|
4.88
|
4.75 – 5.25
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Pass
|
|
Total PSU DC Loading = 436W (51% of Rated Maximum Output Power)
|
|||||
|
Corsair AX850 850W (CMPSU-850AX) 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
|
7.94
|
26.52
|
3.34
|
3.135 – 3.465
|
Pass
|
|
+5V
|
9.19
|
45.77
|
4.98
|
4.75 – 5.25
|
Pass
|
|
+12V
|
62.64
|
759.20
|
12.12
|
11.4 – 12.6
|
Pass
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-12V
|
0.35
|
4.17
|
11.92
|
10.8 – 13.2
|
Pass
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+5VSB
|
2.04
|
9.77
|
4.79
|
4.75 – 5.25
|
Pass
|
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Total PSU DC Loading = 845W (100% of Rated Maximum Output Power)
|
|||||
Mains Input Voltage 230VAC
|
Corsair AX850 850W (CMPSU-850AX) DC Output Voltage Load Regulation
|
|
|
Supply = 230VAC/50Hz
|
|
|
PSU DC Rail
|
Measured Voltage(V)
|
|
3V3
|
3.40
|
|
5V0
|
5.04
|
|
+12V
|
12.23
|
|
-12V
|
11.88
|
|
5VSB
|
5.10
|
|
Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)
|
|
|
Corsair AX850 850W (CMPSU-850AX) 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
|
3.18
|
10.72
|
3.37
|
3.135 – 3.465
|
Pass
|
|
+5V
|
4.69
|
23.54
|
5.02
|
4.75 – 5.25
|
Pass
|
|
+12V
|
10.23
|
124.80
|
12.20
|
11.4 – 12.6
|
Pass
|
|
-12V
|
0.35
|
4.15
|
11.87
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
2.12
|
10.47
|
4.94
|
4.75 – 5.25
|
Pass
|
|
Total PSU DC Loading = 174W (20% of Rated Maximum Output Power)
|
|||||
|
Corsair AX850 850W (CMPSU-850AX) 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
|
3.18
|
10.75
|
3.38
|
3.135 – 3.465
|
Pass
|
|
+5V
|
4.70
|
23.59
|
5.02
|
4.75 – 5.25
|
Pass
|
|
+12V
|
31.71
|
386.86
|
12.20
|
11.4 – 12.6
|
Pass
|
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-12V
|
0.35
|
4.15
|
11.87
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
2.11
|
10.34
|
4.90
|
4.75 – 5.25
|
Pass
|
|
Total PSU DC Loading = 436W (51% of Rated Maximum Output Power)
|
|||||
|
Corsair AX850 850W (CMPSU-850AX) 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
|
7.95
|
26.55
|
3.34
|
3.135 – 3.465
|
Pass
|
|
+5V
|
9.22
|
45.92
|
4.98
|
4.75 – 5.25
|
Pass
|
|
+12V
|
62.68
|
759.68
|
12.12
|
11.4 – 12.6
|
Pass
|
|
-12V
|
0.35
|
4.17
|
11.92
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
2.04
|
9.91
|
4.86
|
4.75 – 5.25
|
Pass
|
|
Total PSU DC Loading = 846W (100% of Rated Maximum Output Power)
|
|||||
The Corsair AX850 produced a great set of results in this section with all the rails holding steady from zero to full load. Again, there aren't any problems here so let's move on.
