SilverStone Hela 2500Rz ATX v3.1 PSU Review

Load Regulation

Test	12V	5V	3.3V	5VSB	DC/AC (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/AC Volts
10%	18.775A	1.995A	2.007A	0.992A	250.012	90.711%	520	15	40.23°C	0.96
10%	12.166V	5.013V	3.289V	5.04V	275.659	90.711%	520	15	46.8°C	229.79V
20%	38.600A	2.997A	3.016A	1.194A	499.618	93.321%	1027	36.2	40.78°C	0.989
20%	12.142V	5.005V	3.282V	5.024V	535.411	93.321%	1027	36.2	46.6°C	229.74V
30%	58.868A	3.5A	3.525A	1.398A	749.625	94.03%	1027	36.2	41.08°C	0.995
30%	12.122V	4.999V	3.276V	5.008V	797.202	94.03%	1027	36.2	46.65°C	229.71V
40%	79.189A	4.006A	4.036A	1.603A	999.592	94.116%	1304	42.2	41.83°C	0.997
40%	12.103V	4.993V	3.27V	4.993V	1062.122	94.116%	1304	42.2	48.44°C	229.67V
50%	99.264A	5.016A	5.057A	1.809A	1249.761	93.887%	1547	46.5	42.23°C	0.997
50%	12.081V	4.985V	3.263V	4.976V	1331.132	93.887%	1547	46.5	48.8°C	229.63V
60%	119.382A	6.029A	6.082A	2A	1499.811	92.896%	1739	49.4	42.59°C	0.998
60%	12.063V	4.977V	3.256V	4.959V	1614.448	92.896%	1739	49.4	49.22°C	229.58V
70%	139.603A	7.046A	7.112A	2.226A	1750.027	92.458%	1902	50.5	43.36°C	0.998
70%	12.041V	4.968V	3.248V	4.942V	1892.816	92.458%	1902	50.5	50.58°C	229.54V
80%	159.879A	8.066A	8.146A	2.335A	1999.609	91.932%	2172	52.3	43.93°C	0.998
80%	12.020V	4.959V	3.24V	4.926V	2175.015	91.932%	2172	52.3	52.1°C	229.49V
90%	180.618A	8.583A	8.659A	2.444A	2249.815	91.48%	2161	52.3	44.17°C	0.998
90%	11.999V	4.951V	3.233V	4.91V	2459.513	91.48%	2161	52.3	53.76°C	229.45V
100%	201.193A	9.104A	9.205A	3.071A	2499.384	90.916%	2156	52.3	45.61°C	0.997
100%	11.977V	4.943V	3.226V	4.885V	2749.351	90.916%	2156	52.3	54.9°C	229.4V
110%	221.744A	10.133A	10.347A	3.08A	2749.539	90.438%	2162	52.3	45.38°C	0.997
110%	11.956V	4.934V	3.218V	4.87V	3040.603	90.438%	2162	52.3	55.42°C	229.35V
CL1	0.117A	14.527A	14.692A	0A	121.319	80.091%	522	15.2	44.52°C	0.892
CL1	12.178V	4.97V	3.246V	5.055V	151.604	80.091%	522	15.2	57.54°C	229.81V
CL2	0.115A	22.063A	0A	0A	111.305	78.739%	522	15.2	43.4°C	0.884
CL2	12.183V	4.982V	3.272V	5.06V	141.402	78.739%	522	15.2	54.67°C	229.8V
CL3	0.114A	0A	22.489A	0A	73.984	71.729%	521	15	42.37°C	0.834
CL3	12.182V	4.99V	3.228V	5.059V	103.223	71.729%	521	15	52.85°C	229.82V
CL4	208.616A	0A	0A	0.001A	2499.937	91.235%	2176	52.3	45.18°C	0.998
CL4	11.983V	4.969V	3.246V	4.947V	2739.967	91.235%	2176	52.3	53.82°C	229.41V

Load regulation is loose on all rails.

Test	12V	5V	3.3V	5VSB	DC/AC (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/AC Volts
20W	1.216A	0.498A	0.501A	0.197A	19.998	54.982%	0	<6.0	46.62°C	0.557
20W	12.211V	5.019V	3.294V	5.066V	36.36	54.982%	0	<6.0	36.41°C	229.82V
40W	2.678A	0.697A	0.701A	0.296A	40	70.08%	0	<6.0	43.97°C	0.692
40W	12.210V	5.02V	3.296V	5.064V	57.252	70.08%	0	<6.0	37.89°C	229.82V
60W	4.139A	0.896A	0.901A	0.395A	60.002	77.115%	0	<6.0	41.95°C	0.773
60W	12.208V	5.021V	3.295V	5.061V	77.949	77.115%	0	<6.0	38.7°C	229.82V
80W	5.602A	1.096A	1.102A	0.494A	79.947	80.972%	522	15.2	39.42°C	0.825
80W	12.195V	5.02V	3.294V	5.058V	98.745	80.972%	522	15.2	46.97°C	229.82V

A look at the light loads table.

Ripple Suppression

Test	12V	5V	3.3V	5VSB	Pass/Fail
10% Load	17.3 mV	14.9 mV	14.8 mV	9.9 mV	Pass
20% Load	18.5 mV	16.0 mV	15.5 mV	9.9 mV	Pass
30% Load	19.9 mV	16.1 mV	16.5 mV	11.8 mV	Pass
40% Load	20.0 mV	16.0 mV	16.7 mV	12.0 mV	Pass
50% Load	24.5 mV	16.0 mV	16.8 mV	11.7 mV	Pass
60% Load	20.2 mV	15.6 mV	15.9 mV	11.6 mV	Pass
70% Load	22.0 mV	17.2 mV	17.5 mV	13.0 mV	Pass
80% Load	21.0 mV	17.7 mV	19.5 mV	14.0 mV	Pass
90% Load	21.8 mV	17.1 mV	19.3 mV	15.1 mV	Pass
100% Load	35.5 mV	18.6 mV	20.1 mV	15.6 mV	Pass
110% Load	34.5 mV	18.7 mV	20.5 mV	15.8 mV	Pass
Crossload 1	21.5 mV	14.6 mV	17.1 mV	10.8 mV	Pass
Crossload 2	17.8 mV	17.0 mV	15.3 mV	11.0 mV	Pass
Crossload 3	15.9 mV	14.1 mV	17.2 mV	11.0 mV	Pass
Crossload 4	33.9 mV	16.8 mV	18.4 mV	14.4 mV	Pass