Thermaltake Toughpower SFX 750W Gold 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%	4.385A	1.968A	1.975A	0.982A	75.001	86.517%	1442	26.4	39.42°C	0.962
10%	12.178V	5.082V	3.343V	5.093V	86.689	86.517%	1442	26.4	43.51°C	115.14V
20%	9.789A	2.957A	2.967A	1.181A	149.965	89.85%	2136	39.3	40.63°C	0.98
20%	12.162V	5.075V	3.336V	5.081V	166.906	89.85%	2136	39.3	44.99°C	115.12V
30%	15.547A	3.454A	3.468A	1.381A	224.972	91.027%	2311	40.3	41.71°C	0.982
30%	12.150V	5.068V	3.331V	5.069V	247.147	91.027%	2311	40.3	46.46°C	115.09V
40%	21.335A	3.953A	3.97A	1.582A	300.062	91.396%	2237	38.8	41.7°C	0.984
40%	12.133V	5.061V	3.325V	5.057V	328.309	91.396%	2237	38.8	46.77°C	115.07V
50%	26.744A	4.949A	4.973A	1.785A	374.594	91.244%	2400	42	42.36°C	0.987
50%	12.118V	5.053V	3.318V	5.045V	410.545	91.244%	2400	42	47.88°C	115.05V
60%	32.196A	5.948A	5.98A	1.988A	449.512	90.901%	2496	42	43°C	0.99
60%	12.103V	5.045V	3.312V	5.031V	494.508	90.901%	2496	42	49.11°C	115.04V
70%	37.663A	6.951A	6.991A	2.192A	524.441	90.415%	2592	43.2	43.1°C	0.992
70%	12.089V	5.037V	3.305V	5.018V	580.045	90.415%	2592	43.2	50.16°C	115.01V
80%	43.212A	7.957A	8.004A	2.297A	599.656	89.839%	2702	44	43.59°C	0.993
80%	12.074V	5.029V	3.298V	5.008V	667.478	89.839%	2702	44	51.64°C	114.99V
90%	49.107A	8.465A	8.505A	2.402A	674.681	89.207%	2814	45.4	44.56°C	0.994
90%	12.059V	5.021V	3.291V	4.997V	756.317	89.207%	2814	45.4	53.59°C	114.97V
100%	54.808A	8.977A	9.04A	3.019A	749.912	88.34%	2988	46.7	45.8°C	0.995
100%	12.046V	5.013V	3.285V	4.97V	848.897	88.34%	2988	46.7	55.89°C	114.96V
110%	60.394A	9.993A	10.16A	3.024A	824.942	87.449%	3008	47.2	46.54°C	0.996
110%	12.032V	5.004V	3.277V	4.961V	943.338	87.449%	3008	47.2	57.44°C	114.94V
CL1	0.115A	11.868A	11.929A	0A	101.297	85.064%	2421	42.2	44.02°C	0.975
CL1	12.195V	5.072V	3.327V	5.105V	119.077	85.064%	2421	42.2	49.51°C	115.13V
CL2	0.115A	19.701A	0A	0A	101.391	83.944%	2306	40.3	41.42°C	0.974
CL2	12.187V	5.076V	3.328V	5.117V	120.788	83.944%	2306	40.3	48.52°C	115.13V
CL4	62.282A	0A	0A	0A	749.706	89.209%	2631	44.3	47.63°C	0.995
CL4	12.037V	5.024V	3.3V	5.078V	840.393	89.209%	2631	44.3	58.58°C	114.96V

Load regulation is loose on all rails. In addition, I couldn’t run the CL3 test, where I applied a full load at 3.3V and a minimum load on all other rails. The same problem occurred in the 850W unit.

Ripple Suppression

Test	12V	5V	3.3V	5VSB	Pass/Fail
10% Load	15.0 mV	6.1 mV	5.2 mV	12.0 mV	Pass
20% Load	11.6 mV	7.6 mV	5.1 mV	12.9 mV	Pass
30% Load	10.3 mV	11.5 mV	5.8 mV	14.9 mV	Pass
40% Load	11.5 mV	12.0 mV	6.2 mV	15.8 mV	Pass
50% Load	10.8 mV	11.6 mV	5.8 mV	16.1 mV	Pass
60% Load	10.3 mV	12.6 mV	6.0 mV	19.0 mV	Pass
70% Load	10.1 mV	18.0 mV	6.6 mV	20.1 mV	Pass
80% Load	10.8 mV	17.9 mV	7.3 mV	20.1 mV	Pass
90% Load	11.8 mV	15.9 mV	8.0 mV	20.9 mV	Pass
100% Load	17.3 mV	11.2 mV	7.4 mV	28.7 mV	Pass
110% Load	19.3 mV	11.6 mV	8.0 mV	28.9 mV	Pass
Crossload 1	17.2 mV	8.9 mV	9.8 mV	7.2 mV	Pass
Crossload 2	12.4 mV	10.1 mV	8.2 mV	6.8 mV	Pass
Crossload 4	18.3 mV	8.9 mV	5.7 mV	11.8 mV	Pass