Welcome Stranger to OCC!Login | Register

Corsair AX1200 1200W Power Supply Review

paulktreg    -   July 7, 2010
» Discuss this article (1)

Lowest Prices

Testing:

For more information on how we test our power supplies, please browse our testing methodology.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrical Safety:

 

Electrical Safety Test Class 1
Manufacturer/Model
Pass/Fail
Corsair AX1200
Pass

 

Short Circuit Protection:

I short circuited the 3V3, 5V0 and the 12V rail 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

 

 

Corsair AX1200 1200W (CMPSU-1200AX) DC Output Voltage Load Regulation
Supply = 110Vac/50Hz
PSU DC Rail
Measured Voltage(V)
3V3
3.40
5V0
5.08
+12V
12.20
-12V
12.22
5VSB
5.08
Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)

 

Corsair AX1200 1200W (CMPSU-1200AX) 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
3.18
10.78
3.39
3.135 – 3.465
Pass
+5V
4.73
23.93
5.06
4.75 – 5.25
Pass
+12V
15.78
192.20
12.18
11.4 – 12.6
Pass
-12V
0.37
4.51
12.20
10.8 – 13.2
Pass
+5VSB
2.08
10.30
4.95
4.75 – 5.25
Pass
Total PSU DC Loading = 241W (20% of Rated Maximum Output Power)

 

Corsair AX1200 1200W (CMPSU-1200AX) 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
3.18
10.78
3.39
3.135 – 3.465
Pass
+5V
4.71
23.83
5.06
4.75 – 5.25
Pass
+12V
46.22
562.96
12.18
11.4 – 12.6
Pass
-12V
0.37
4.52
12.21
10.8 – 13.2
Pass
+5VSB
2.03
10.05
4.95
4.75 – 5.25
Pass
Total PSU DC Loading = 612W (51% of Rated Maximum Output Power)

 

Corsair AX1200 1200W (CMPSU-1200AX) 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
8.08
27.47
3.40
3.135 – 3.465
Pass
+5V
9.42
47.67
5.06
4.75 – 5.25
Pass
+12V
89.90
1095.88
12.19
11.4 – 12.6
Pass
-12V
0.37
4.52
12.22
10.8 – 13.2
Pass
+5VSB
2.08
10.27
4.94
4.75 – 5.25
Pass
Total PSU DC Loading = 1186W (99% of Rated Maximum Output Power)

 

Mains Input Voltage 230VAC

 

 

Corsair AX1200 1200W (CMPSU-1200AX) DC Output Voltage Load Regulation
Supply = 230Vac/50Hz
PSU DC Rail
Measured Voltage(V)
3V3
3.40
5V0
5.09
+12V
12.20
-12V
12.21
5VSB
5.08
Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)

 

Corsair AX1200 1200W (CMPSU-1200AX) 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
10.81
3.39
3.135 – 3.465
Pass
+5V
4.75
24.03
5.06
4.75 – 5.25
Pass
+12V
15.72
191.47
12.18
11.4 – 12.6
Pass
-12V
0.37
4.51
12.20
10.8 – 13.2
Pass
+5VSB
2.07
10.16
4.91
4.75 – 5.25
Pass
Total PSU DC Loading = 241W (20% of Rated Maximum Output Power)

 

Corsair AX1200 1200W (CMPSU-1200AX) 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
10.78
3.39
3.135 – 3.465
Pass
+5V
4.70
23.78
5.06
4.75 – 5.25
Pass
+12V
46.22
562.96
12.18
11.4 – 12.6
Pass
-12V
0.37
4.52
12.21
10.8 – 13.2
Pass
+5VSB
2.03
10.01
4.93
4.75 – 5.25
Pass
Total PSU DC Loading = 612W (51% of Rated Maximum Output Power)

 

Corsair AX1200 1200W (CMPSU-1200AX) 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
8.04
27.34
3.40
3.135 – 3.465
Pass
+5V
9.38
47.46
5.06
4.75 – 5.25
Pass
+12V
89.94
1096.37
12.19
11.4 – 12.6
Pass
-12V
0.38
4.64
12.22
10.8 – 13.2
Pass
+5VSB
2.08
10.27
4.94
4.75 – 5.25
Pass
Total PSU DC Loading = 1186W (99% of Rated Maximum Output Power)

 

Perfect! Rock solid rails that translate to virtually horizontal lines on the graphs. The Corsair AX1200 power supply is probably one of the best regulated power supplies I've tested, so let's move on and see if it can continue to produce excellent results.




  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing: DC Voltage Load Regulation At 110VAC & 230VAC
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
Random Pic
© 2001-2014 Overclockers Club ® Privacy Policy

Also part of our network: TalkAndroid, Android Forum, iPhone Informer, Neoseeker, and Used Audio Classifieds

Elapsed: 0.0320451260