Ultra X4 1050W Power Supply Review

paulktreg - October 18, 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
Ultra X4 1050W	Pass

Short Circuit Protection:

I short circuited the 3V3, 5V0 and 12V rails 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 1050W
DC Output Voltage Load Regulation
AC Supply = 110V / DC Load = 0W
PSU DC Rail	Measured Voltage(V)
3V3	3.40
5V0	4.91
+12V	12.41
-12V	-11.95
5VSB	5.01

Ultra X4 1050W
DC Output Voltage Load Regulation
110VAC - Total Load at 202W which is 19% of Rated Maximum Output Power
PSU DC Rail	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	3.15	10.71	3.135 – 3.465	Pass
+5V	5.14	9.33	47.96	4.75 – 5.25	Pass
+12V	12.39	10.42	129.10	11.4 – 12.6	Pass
-12V	11.97	0.34	4.07	10.8 – 13.2	Pass
+5VSB	4.93	1.98	9.76	4.75 – 5.25	Pass
Total Power Supply Loading			202W

Ultra X4 1050W
DC Output Voltage Load Regulation
110VAC - Total Load at 525W which is 50% of Rated Maximum Output Power
PSU DC Rail	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.39	8.02	27.19	3.135 – 3.465	Pass
+5V	5.13	9.32	47.81	4.75 – 5.25	Pass
+12V	12.36	35.25	435.69	11.4 – 12.6	Pass
-12V	12.12	0.36	4.36	10.8 – 13.2	Pass
+5VSB	4.93	1.99	9.81	4.75 – 5.25	Pass
Total Power Supply Loading			525W

Ultra X4 1050W
DC Output Voltage Load Regulation
110VAC - Total Load at 1063W which is 101% of Rated Maximum Output Power
PSU DC Rail	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.38	14.12	47.73	3.135 – 3.465	Pass
+5V	5.12	16.33	83.61	4.75 – 5.25	Pass
+12V	12.32	74.52	918.09	11.4 – 12.6	Pass
-12V	12.32	0.36	4.36	10.8 – 13.2	Pass
+5VSB	4.92	1.99	9.81	4.75 – 5.25	Pass
Total Power Supply Loading			1063W

Mains Input Voltage 230VAC

Ultra X4 1050W
DC Output Voltage Load Regulation
AC Supply = 230V / DC Load = 0W
PSU DC Rail	Measured Voltage(V)
3V3	3.40
5V0	4.91
+12V	12.41
-12V	-11.95
5VSB	5.10

Ultra X4 1050W
DC Output Voltage Load Regulation
230VAC - Total Load at 202W which is 19% of Rated Maximum Output Power
PSU DC Rail	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	3.16	10.74	3.135 – 3.465	Pass
+5V	5.14	9.36	48.11	4.75 – 5.25	Pass
+12V	12.39	10.42	129.10	11.4 – 12.6	Pass
-12V	11.96	0.34	4.07	10.8 – 13.2	Pass
+5VSB	4.94	1.98	9.78	4.75 – 5.25	Pass
Total Power Supply Loading			202W

Ultra X4 1050W
DC Output Voltage Load Regulation
230VAC - Total Load at 526W which is 50% of Rated Maximum Output Power
PSU DC Rail	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	8.10	27.54	3.135 – 3.465	Pass
+5V	5.13	9.33	47.86	4.75 – 5.25	Pass
+12V	12.36	35.33	436.68	11.4 – 12.6	Pass
-12V	12.12	0.36	4.36	10.8 – 13.2	Pass
+5VSB	4.93	1.99	9.81	4.75 – 5.25	Pass
Total Power Supply Loading			526W

Ultra X4 1050W
DC Output Voltage Load Regulation
230VAC - Total Load at 1064W which is 101% of Rated Maximum Output Power
PSU DC Rail	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.38	14.02	47.39	3.135 – 3.465	Pass
+5V	5.12	15.79	80.84	4.75 – 5.25	Pass
+12V	12.32	74.83	921.90	11.4 – 12.6	Pass
-12V	12.37	0.36	4.45	10.8 – 13.2	Pass
+5VSB	4.92	1.99	9.79	4.75 – 5.25	Pass
Total Power Supply Loading			1064W