PCCooler YT1000 ATX v3.1 PSU Review

Load Regulation

It measures the stability of the output voltage when the load connected to the power supply varies.

Test	12V	5V	3.3V	5VSB	DC/AC (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/AC Volts
10%	6.460A	1.996A	1.952A	0.985A	100.022	86.486%	0	<6.0	46.94°C	0.972
10%	12.139V	5.011V	3.381V	5.076V	115.649	86.486%	0	<6.0	40.47°C	114.92V
20%	13.930A	2.996A	2.93A	1.186A	199.982	90.873%	0	<6.0	47.83°C	0.986
20%	12.137V	5.009V	3.379V	5.062V	220.069	90.873%	0	<6.0	40.82°C	114.89V
30%	21.782A	3.496A	3.42A	1.387A	300.043	91.929%	0	<6.0	50.69°C	0.986
30%	12.119V	5.007V	3.377V	5.047V	326.384	91.929%	0	<6.0	41.26°C	114.87V
40%	29.600A	3.997A	3.911A	1.59A	399.864	91.991%	0	<6.0	53.38°C	0.987
40%	12.117V	5.005V	3.375V	5.033V	434.676	91.991%	0	<6.0	41.7°C	114.83V
50%	37.073A	5A	4.894A	1.794A	499.613	91.484%	928	27.7	42.29°C	0.985
50%	12.114V	5.002V	3.373V	5.019V	546.119	91.484%	928	27.7	62.44°C	114.79V
60%	44.617A	6.003A	5.877A	1.999A	600.124	90.96%	925	27.6	42.9°C	0.986
60%	12.110V	5V	3.37V	5.005V	659.771	90.96%	925	27.6	64.65°C	114.76V
70%	52.086A	7.008A	6.862A	2.204A	699.832	90.415%	921	27.5	43.33°C	0.986
70%	12.109V	4.997V	3.367V	4.991V	774.017	90.415%	921	27.5	66.14°C	114.73V
80%	59.630A	8.014A	7.847A	2.309A	799.877	89.63%	1519	43.2	43.69°C	0.988
80%	12.108V	4.992V	3.364V	4.981V	892.421	89.63%	1519	43.2	65.59°C	114.71V
90%	67.500A	8.518A	8.328A	2.415A	899.678	88.926%	1515	42.7	44.75°C	0.988
90%	12.107V	4.99V	3.362V	4.97V	1011.723	88.926%	1515	42.7	70.1°C	114.67V
100%	75.154A	9.022A	8.839A	3.036A	999.694	88.137%	1512	42.4	45.91°C	0.989
100%	12.109V	4.988V	3.36V	4.942V	1134.257	88.137%	1512	42.4	74.93°C	114.64V
110%	82.720A	10.029A	9.918A	3.042A	1100.317	87.172%	1509	42.3	46.52°C	0.99
110%	12.113V	4.986V	3.358V	4.933V	1262.23	87.172%	1509	42.3	81.09°C	114.6V
CL1	0.116A	12.049A	11.761A	0A	101.32	82.209%	928	27.7	41.98°C	0.975
CL1	12.167V	4.997V	3.376V	5.093V	123.246	82.209%	928	27.7	62°C	114.91V
CL2	0.115A	20.048A	0A	0A	101.406	80.027%	1524	43.4	40.37°C	0.977
CL2	12.154V	4.988V	3.383V	5.099V	126.72	80.027%	1524	43.4	52.93°C	114.91V
CL3	0.116A	0A	19.575A	0A	67.399	77.415%	1239	36.8	40.69°C	0.961
CL3	12.047V	5.013V	3.372V	5.099V	87.06	77.415%	1239	36.8	49.83°C	114.92V
CL4	82.689A	0A	0A	0A	1000.178	88.788%	1509	42.3	45.69°C	0.989
CL4	12.096V	5.004V	3.369V	5.05V	1126.487	88.788%	1509	42.3	70.69°C	114.64V

Load regulation is within 1% on all primary rails, so all is good here.

Test	12V	5V	3.3V	5VSB	DC/AC (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/AC Volts
20W	1.234A	0.499A	0.488A	0.196A	20.008	78.098%	0	<6.0	41.93°C	0.719
20W	12.033V	5.015V	3.384V	5.11V	25.617	78.098%	0	<6.0	36.6°C	114.95V
40W	2.717A	0.698A	0.683A	0.294A	40.004	84.389%	0	<6.0	43.37°C	0.883
40W	12.033V	5.015V	3.384V	5.105V	47.405	84.389%	0	<6.0	37.6°C	114.94V
60W	4.199A	0.898A	0.878A	0.392A	60.003	86.609%	0	<6.0	43.23°C	0.938
60W	12.034V	5.014V	3.384V	5.1V	69.279	86.609%	0	<6.0	38.08°C	114.94V
80W	5.632A	1.098A	1.073A	0.491A	79.969	84.24%	0	<6.0	46.25°C	0.964
80W	12.133V	5.013V	3.382V	5.095V	94.932	84.24%	0	<6.0	39.63°C	114.93V

A glance at the light loads table is always useful, as the PSU will typically operate at light loads.

Ripple Suppression

Ripple in power supplies refers to the small, unwanted AC voltage fluctuations superimposed on the DC output. It occurs due to imperfect filtering of the AC-to-DC conversion process. Lower ripple is highly preferable because it ensures a cleaner, more stable DC output, thereby reducing noise and potential interference in sensitive electronics, which improves performance and extends the lifespan of components. High ripple can cause instability, overheating, or damage to connected devices.

Test	12V	5V	3.3V	5VSB	Pass/Fail
10% Load	10.4 mV	7.7 mV	6.2 mV	12.6 mV	Pass
20% Load	9.0 mV	8.8 mV	7.4 mV	12.6 mV	Pass
30% Load	11.3 mV	8.3 mV	7.3 mV	12.8 mV	Pass
40% Load	11.1 mV	10.9 mV	9.7 mV	13.5 mV	Pass
50% Load	11.5 mV	9.1 mV	8.3 mV	13.3 mV	Pass
60% Load	11.8 mV	9.7 mV	9.3 mV	15.0 mV	Pass
70% Load	12.0 mV	11.1 mV	10.2 mV	15.8 mV	Pass
80% Load	12.9 mV	10.8 mV	13.9 mV	17.0 mV	Pass
90% Load	12.4 mV	10.9 mV	14.4 mV	17.4 mV	Pass
100% Load	16.7 mV	12.0 mV	15.6 mV	17.7 mV	Pass
110% Load	17.5 mV	12.7 mV	17.4 mV	24.3 mV	Pass
Crossload 1	10.5 mV	9.3 mV	11.8 mV	8.9 mV	Pass
Crossload 2	10.7 mV	8.4 mV	7.1 mV	8.0 mV	Pass
Crossload 3	20.4 mV	9.0 mV	12.8 mV	7.9 mV	Pass
Crossload 4	16.3 mV	11.4 mV	12.0 mV	10.8 mV	Pass