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Ultra X4 600W Power Supply Review

paulktreg    -   January 27, 2010
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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
Ultra X4 600W Power Supply
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

 

 

Ultra X4 600W Power Supply DC Output Voltage Load Regulation
Supply = 110VAC/50Hz
PSU DC Rail
Measured Voltage(V)
3V3
3.30
5V0
5.12
+12V
12.30
-12V
9.84
5VSB
4.95
Total PSU Loading = Approx. 25W (1 x WD800 IDE HDD)

 

 

Ultra X4 600W 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
3.13
10.27
3.28
3.135 – 3.465
Pass
+5V
4.83
24.58
5.09
4.75 – 5.25
Pass
+12V
5.16
63.26
12.26
11.4 – 12.6
Pass
-12V
0.34
3.97
11.68
10.8 – 13.2
Pass
+5VSB
2.04
10.04
4.92
4.75 – 5.25
Pass
Total PSU Loading = 112W (19% of Rated Maximum Output Power)

 

Ultra X4 600W 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
8.41
27.50
3.27
3.135 – 3.465
Pass
+5V
9.78
49.19
5.03
4.75 – 5.25
Pass
+12V
18.66
227.82
12.21
11.4 – 12.6
Pass
-12V
0.36
4.29
11.93
10.8 – 13.2
Pass
+5VSB
2.08
10.15
4.88
4.75 – 5.25
Pass
Total PSU Loading = 319W (53% of Rated Maximum Output Power)

 

Ultra X4 600W 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
13.56
43.93
3.24
3.135 – 3.465
Pass
+5V
15.25
75.64
4.96
4.75 – 5.25
Pass
+12V
36.51
444.33
12.17
11.4 – 12.6
Pass
-12V
0.36
4.41
12.26
10.8 – 13.2
Pass
+5VSB
2.05
9.92
4.84
4.75 – 5.25
Pass
Total PSU Loading = 578W (96% of Rated Maximum Output Power)

 

Mains Input Voltage 230VAC

 

 

Ultra X4 600W Power Supply DC Output Voltage Load Regulation
Supply = 230VAC/50Hz
PSU DC Rail
Measured Voltage(V)
3V3
3.30
5V0
5.12
+12V
12.30
-12V
9.83
5VSB
4.92
Total PSU Loading = Approx. 25W (1 x WD800 IDE HDD)

 

 

Ultra X4 600W 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
3.15
10.33
3.28
3.135 – 3.465
Pass
+5V
4.83
24.58
5.09
4.75 – 5.25
Pass
+12V
5.16
63.26
12.26
11.4 – 12.6
Pass
-12V
0.34
3.97
11.68
10.8 – 13.2
Pass
+5VSB
2.04
10.06
4.93
4.75 – 5.25
Pass
Total PSU Loading = 112W (19% of Rated Maximum Output Power)

 

Ultra X4 600W 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
8.27
27.04
3.27
3.135 – 3.465
Pass
+5V
9.76
49.09
5.03
4.75 – 5.25
Pass
+12V
18.69
228.39
12.22
11.4 – 12.6
Pass
-12V
0.36
4.29
11.92
10.8 – 13.2
Pass
+5VSB
2.08
10.15
4.88
4.75 – 5.25
Pass
Total PSU Loading = 319W (53% of Rated Maximum Output Power)

 

Ultra X4 600W 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
13.50
43.74
3.24
3.135 – 3.465
Pass
+5V
14.88
73.80
4.96
4.75 – 5.25
Pass
+12V
36.66
446.15
12.17
11.4 – 12.6
Pass
-12V
0.36
4.41
12.26
10.8 – 13.2
Pass
+5VSB
2.05
9.92
4.84
4.75 – 5.25
Pass
Total PSU Loading = 578W (96% of Rated Maximum Output Power)

 

The Ultra X4 600W power supply refused to fire up with no load present, rare but not abnormal power supply behavior, and rather than skip, the no load test it was loaded to a low level with a single Western Digital IDE HDD pulling approximately 25W. This load was obviously not quite enough to wake the power supply up with a -12V rail voltage of only 9.84V.

The DC output voltage load regulation of the Ultra X4 600W power supply is very good and all readings fall well within the limits set down by the ATX12V V2.2 specification but it is however the first power supply I have tested that failed to reach 5.0V on the +5VSB rail.




  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
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