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RSS FeedsSapphire Pure 1250W Power Supply Review
paulktreg - October 29, 2009» Discuss this article (2)
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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Sapphire Pure 1250W
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Pass
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Short Circuit Protection:
I short circuited the 3V3, 5V0 and all six 12V rails in turn. The power supply did shut down and the PowerGuard LED turned red. Once the short was removed and the unit switched off for at least one second, it 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
|
Sapphire Pure 1250W
|
|
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DC Output Voltage Load Regulation
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AC Supply = 110V / DC Load = 0W
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PSU DC Rail
|
Measured Voltage(V)
|
|
3V3
|
3.34
|
|
5V0
|
5.11
|
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12V1,12V2,12V3,12V4,12V5,12V6
|
12.33
|
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-12V
|
-11.66
|
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5VSB
|
5.20
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Sapphire Pure 1250W
|
|||||
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DC Output Voltage Load Regulation
|
|||||
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110VAC– Total Load at 279W which is 22% of Rated Maximum Output Power
|
|||||
|
PSU
DC Rail
|
Measured
Voltage(V)
|
Measured
Current (A)
|
Load Power
(W)
|
ATX12V V Limits
(V)
|
Pass/Fail
|
|
+3V3
|
3.33
|
7.54
|
25.11
|
3.135 – 3.465
|
Pass
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+5V
|
5.09
|
8.79
|
44.74
|
4.75 – 5.25
|
Pass
|
|
+12V1
|
12.30
|
2.60
|
31.98
|
11.4 – 12.6
|
Pass
|
|
+12V2
|
12.30
|
2.60
|
31.98
|
11.4 – 12.6
|
Pass
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|
+12V3
|
12.28
|
2.59
|
31.80
|
11.4 – 12.6
|
Pass
|
|
+12V4
|
12.28
|
8.07
|
99.10
|
11.4 – 12.6
|
Pass
|
|
+12V5
|
12.31
|
0
|
0
|
11.4 – 12.6
|
Pass
|
|
+12V6
|
12.31
|
0
|
0
|
11.4 – 12.6
|
Pass
|
|
-12V
|
11.83
|
0.33
|
3.90
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
5.17
|
2.09
|
10.80
|
4.75 – 5.25
|
Pass
|
|
Total Power Supply Loading
|
279W
|
|
|||
|
Sapphire Pure 1250W
|
|||||
|
DC Output Voltage Load Regulation
|
|||||
|
110VAC – Total Load at 692W which is 55% of Rated Maximum Output Power
|
|||||
|
PSU
DC Rail
|
Measured
Voltage(V)
|
Measured
Current (A)
|
Load Power
(W)
|
ATX12V V Limits
(V)
|
Pass/Fail
|
|
+3V3
|
3.33
|
7.44
|
24.77
|
3.135 – 3.465
|
Pass
|
|
+5V
|
5.08
|
8.84
|
44.71
|
4.75 – 5.25
|
Pass
|
|
+12V1
|
12.28
|
8.17
|
100.33
|
11.4 – 12.6
|
Pass
|
|
+12V2
|
12.28
|
2.60
|
31.93
|
11.4 – 12.6
|
Pass
|
|
+12V3
|
12.19
|
8.08
|
98.49
|
11.4 – 12.6
|
Pass
|
|
+12V4
|
12.26
|
8.16
|
100.04
|
11.4 – 12.6
|
Pass
|
|
+12V5
|
12.23
|
11.55
|
141.26
|
11.4 – 12.6
|
Pass
|
|
+12V6
|
12.24
|
11.10
|
135.86
|
11.4 – 12.6
|
Pass
|
|
-12V
|
11.52
|
0.33
|
3.80
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
5.07
|
2.09
|
10.60
|
4.75 – 5.25
|
Pass
|
|
Total Power Supply Loading
|
692W
|
|
|||
|
Sapphire Pure 1250W
|
|||||
|
DC Output Voltage Load Regulation
|
|||||
|
110VAC– Total Load at 1277W which is 102% of Rated Maximum Output Power
|
|||||
|
PSU
DC Rail
|
Measured
Voltage(V)
|
Measured
Current (A)
|
Load Power
(W)
|
ATX12V V Limits
(V)
|
Pass/Fail
|
|
+3V3
|
3.33
|
10.73
|
35.73
|
3.135 – 3.465
|
Pass
|
|
+5V
|
5.06
|
12.93
|
65.42
|
4.75 – 5.25
|
Pass
|
|
+12V1
|
12.21
|
18.11
|
221.12
|
11.4 – 12.6
|
Pass
|
|
+12V2
|
12.21
|
18.06
|
220.51
|
11.4 – 12.6
|
Pass
|
|
+12V3
|
12.04
|
18.33
|
220.69
|
11.4 – 12.6
|
Pass
|
|
+12V4
|
12.19
|
18.60
|
226.73
|
11.4 – 12.6
|
Pass
|
|
+12V5
|
12.22
|
11.38
|
139.06
|
11.4 – 12.6
|
Pass
|
|
+12V6
|
12.20
|
10.92
|
133.22
|
11.4 – 12.6
|
Pass
|
|
-12V
|
11.73
|
0.34
|
3.99
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
5.04
|
2.09
|
10.53
|
4.75 – 5.25
|
Pass
|
|
Total Power Supply Loading
|
1277W
|
|
|||
Mains Input Voltage 230VAC
|
Sapphire Pure 1250W
|
|
|
DC Output Voltage Load Regulation
|
|
|
AC Supply = 230V / DC Load = 0W
|
|
|
PSU DC Rail
|
Measured Voltage(V)
|
|
3V3
|
3.34
|
|
5V0
|
5.11
|
|
12V1,12V2,12V3,12V4,12V5,12V6
|
12.33
|
|
-12V
|
-11.66
|
|
5VSB
|
5.20
|
|
Sapphire Pure 1250W
|
|||||
|
DC Output Voltage Load Regulation
|
|||||
|
230VAC– Total Load at 279W which is 22% of Rated Maximum Output Power
|
|||||
|
PSU
DC Rail
|
Measured
Voltage(V)
|
Measured
Current (A)
|
Load Power
(W)
|
ATX12V V Limits
(V)
|
Pass/Fail
|
|
+3V3
|
3.34
|
7.64
|
25.52
|
3.135 – 3.465
|
Pass
|
|
+5V
|
5.09
|
8.62
|
43.87
|
4.75 – 5.25
|
Pass
|
|
+12V1
|
12.30
|
2.58
|
31.73
|
11.4 – 12.6
|
Pass
|
|
+12V2
|
12.30
|
2.58
|
31.73
|
11.4 – 12.6
|
Pass
|
|
+12V3
|
12.28
|
2.57
|
31.56
|
11.4 – 12.6
|
Pass
|
|
+12V4
|
12.28
|
8.15
|
100.08
|
11.4 – 12.6
|
Pass
|
|
+12V5
|
12.30
|
0
|
0
|
11.4 – 12.6
|
Pass
|
|
+12V6
|
12.30
|
0
|
0
|
11.4 – 12.6
|
Pass
|
|
-12V
|
11.90
|
0.33
|
3.92
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
5.10
|
2.09
|
10.66
|
4.75 – 5.25
|
Pass
|
|
Total Power Supply Loading
|
279W
|
|
|||
|
Sapphire Pure 1250W
|
|||||
|
DC Output Voltage Load Regulation
|
|||||
|
230VAC – Total Load at 690W which is 55% of Rated Maximum Output Power
|
|||||
|
PSU
DC Rail
|
Measured
Voltage(V)
|
Measured
Current (A)
|
Load Power
(W)
|
ATX12V V Limits
(V)
|
Pass/Fail
|
|
+3V3
|
3.33
|
7.44
|
24.77
|
3.135 – 3.465
|
Pass
|
|
+5V
|
5.09
|
8.77
|
44.64
|
4.75 – 5.25
|
Pass
|
|
+12V1
|
12.28
|
8.18
|
100.45
|
11.4 – 12.6
|
Pass
|
|
+12V2
|
12.28
|
2.60
|
31.93
|
11.4 – 12.6
|
Pass
|
|
+12V3
|
12.22
|
8.07
|
98.61
|
11.4 – 12.6
|
Pass
|
|
+12V4
|
12.26
|
8.05
|
98.69
|
11.4 – 12.6
|
Pass
|
|
+12V5
|
12.23
|
11.56
|
141.38
|
11.4 – 12.6
|
Pass
|
|
+12V6
|
12.22
|
11.08
|
135.40
|
11.4 – 12.6
|
Pass
|
|
-12V
|
11.52
|
0.33
|
3.80
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
5.07
|
2.09
|
10.60
|
4.75 – 5.25
|
Pass
|
|
Total Power Supply Loading
|
690W
|
|
|||
|
Sapphire Pure 1250W
|
|||||
|
DC Output Voltage Load Regulation
|
|||||
|
230VAC – Total Load at 1278W which is 102% of Rated Maximum Output Power
|
|||||
|
PSU
DC Rail
|
Measured
Voltage(V)
|
Measured
Current (A)
|
Load Power
(W)
|
ATX12V V Limits
(V)
|
Pass/Fail
|
|
+3V3
|
3.33
|
11.17
|
37.20
|
3.135 – 3.465
|
Pass
|
|
+5V
|
5.06
|
12.63
|
63.91
|
4.75 – 5.25
|
Pass
|
|
+12V1
|
12.21
|
18.48
|
225.64
|
11.4 – 12.6
|
Pass
|
|
+12V2
|
12.21
|
18.10
|
221.00
|
11.4 – 12.6
|
Pass
|
|
+12V3
|
12.03
|
17.95
|
215.93
|
11.4 – 12.6
|
Pass
|
|
+12V4
|
12.19
|
18.18
|
221.61
|
11.4 – 12.6
|
Pass
|
|
+12V5
|
12.21
|
11.60
|
141.64
|
11.4 – 12.6
|
Pass
|
|
+12V6
|
12.22
|
11.18
|
136.62
|
11.4 – 12.6
|
Pass
|
|
-12V
|
11.73
|
0.34
|
3.99
|
10.8 – 13.2
|
Pass
|
|
+5VSB
|
5.04
|
2.09
|
10.53
|
4.75 – 5.25
|
Pass
|
|
Total Power Supply Loading
|
1278W
|
|
|||
No problems here. The Sapphire Pure 1250W produced an excellent set of results in this section. All the rails held up well within the limits set down by the ATX12V V2.2 specification from zero, to a slight overload of 1278W.
