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Xigmatek NRP-PC502 500W Power Supply Review

paulktreg    -   July 21, 2009
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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
Xigmatek NRP-PC502
Pass

 

Short Circuit Protection:

I short circuited the 3V3, 5V0 and both 12V lines in turn. The power supply did shut down, and 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

 

 

DC Output Voltage Load Regulation
AC Supply = 110V / DC Load = 0W
PSU DC Rail
Measured Voltage(V)
3V3
3.36
5V0
5.02
12V1
12.18
12V2
12.18
-12V
11.71
5VSB
5.07

 

DC Output Voltage Load Regulation
AC Supply = 110V / DC Load = 110W (22% of Rated Maximum Output Power)
PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.37
3.06
10.31
3.135 – 3.465
Pass
+5V0
4.98
4.44
22.11
4.75 – 5.25
Pass
+12V0(1)
12.30
2.60
31.98
11.4 – 12.6
Pass
+12V0(2)
12.29
2.59
31.83
11.4 – 12.6
Pass
-12V0
11.34
0.34
3.86
10.8 – 13.2
Pass
+5VSB
5.0
2.02
10.10
4.75 – 5.25
Pass
TOTAL POWER SUPPLY DC LOAD =
110W
 

 

DC Output Voltage Load Regulation
AC Supply = 110V / DC Load = 259W (52% of Rated Maximum Output Power)
PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.35
7.66
25.66
3.135 – 3.465
Pass
+5V0
5.01
4.45
22.29
4.75 – 5.25
Pass
+12V0(1)
12.16
8.04
97.77
11.4 – 12.6
Pass
+12V0(2)
12.19
8.15
99.35
11.4 – 12.6
Pass
-12V0
11.42
0.34
3.88
10.8 – 13.2
Pass
+5VSB
5.00
2.02
10.10
4.75 – 5.25
Pass
TOTAL POWER SUPPLY DC LOAD =
259W
 

 

DC Output Voltage Load Regulation
AC Supply = 110V / DC Load = 471W (94% of Rated Maximum Output Power)
PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.35
11.19
37.49
3.135 – 3.465
Pass
+5V0
4.91
14.56
71.49
4.75 – 5.25
Pass
+12V0(1)
12.48
14.07
175.59
11.4 – 12.6
Pass
+12V0(2)
12.44
13.85
172.29
11.4 – 12.6
Pass
-12V0
11.72
0.36
4.23
10.8 – 13.2
Pass
+5VSB
5.00
2.02
10.10
4.75 – 5.25
Pass
TOTAL POWER SUPPLY DC LOAD =
471W
 

 

Mains Input Voltage 230VAC

 

 

DC Output Voltage Load Regulation
AC Supply = 230V / DC Load = 0W
PSU DC Rail
Measured Voltage(V)
3V3
3.36
5V0
5.02
12V1
12.17
12V2
12.17
-12V
11.71
5VSB
5.07

 

DC Output Voltage Load Regulation
AC Supply = 230V / DC Load = 110W (22% of Rated Maximum Output Power)
PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.37
3.05
10.28
3.135 – 3.465
Pass
+5V0
4.98
4.46
22.21
4.75 – 5.25
Pass
+12V0(1)
12.30
2.61
32.10
11.4 – 12.6
Pass
+12V0(2)
12.29
2.59
31.83
11.4 – 12.6
Pass
-12V0
11.34
0.34
3.85
10.8 – 13.2
Pass
+5VSB
5.00
2.02
10.10
4.75 – 5.25
Pass
TOTAL POWER SUPPLY DC LOAD =
110W
 

 

DC Output Voltage Load Regulation
AC Supply = 230V / DC Load = 259W (52% of Rated Maximum Output Power)
PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.36
7.68
25.80
3.135 – 3.465
Pass
+5V0
5.00
4.45
22.25
4.75 – 5.25
Pass
+12V0(1)
12.18
8.03
97.80
11.4 – 12.6
Pass
+12V0(2)
12.18
8.12
98.90
11.4 – 12.6
Pass
-12V0
11.42
0.34
3.88
10.8 – 13.2
Pass
+5VSB
5.00
2.02
10.10
4.75 – 5.25
Pass
TOTAL POWER SUPPLY DC LOAD =
259W
 

 

DC Output Voltage Load Regulation
AC Supply = 110V / DC Load = 471W (94% of Rated Maximum Output Power)
PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.35
11.25
37.69
3.135 – 3.465
Pass
+5V0
4.92
14.55
71.59
4.75 – 5.25
Pass
+12V0(1)
12.49
14.13
176.48
11.4 – 12.6
Pass
+12V0(2)
12.45
13.76
171.31
11.4 – 12.6
Pass
-12V0
11.71
0.34
3.98
10.8 – 13.2
Pass
+5VSB
5.00
2.02
10.10
4.75 – 5.25
Pass
TOTAL POWER SUPPLY DC LOAD =
471W
 

 

The DC voltage load regulation of the Xigmatek NRP-PC502 was acceptable and all rails remained within the limits set out in the ATX12V V2.2 specification up to a 471W load. The performance could be better however, with the -12V rail a little on the low side at light loading, and the +12V rails approaching the maximum limit when loaded at 471W.

 




  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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