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Corsair TX750 PSU


by Grace - 28th October 2008
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Corsair TX750W Testing


Corsair TX750W PSU, 25% load

Voltage Line
Power Load (A)
3,3V
6
5V
5
12V1
12

 

3V
5V
12V


Corsair TX750W PSU, 50% load

Voltage Line
Power Load (A)
3,3V
12
5V
15
12V1
21

3V
5V
12V


Corsair TX750W PSU, 75% load

Voltage Line
Power Load (A)
3,3V
12
5V
15
12V1
37

3V
5V
12V


Corsair TX750W PSU
, 100% load

Voltage Line
Power Load (A)
3,3V
12
5V
15
12V1
53

3V
5V
12V


Corsair TX750W PSU
, 30-100% Load Voltage Regulation Test

3V
5V
12V


Corsair TX750W PSU
, Efficiency Graph

Power load
30%
40%
50%
60%
70%
80%
90%
100%
Efficiency
84%
84%
86%
86%
84%
83%
83%
82%

Corsair TX750W PSU, Thermal Performance

Load (%)
25%
50%
75%
100%
Intake temperature (Celsius)
22.1
25.9
30.1
37.3
Exhaust temperature (Celsius)
26.7
34.1
38.9
45.9

The electrical performance of the Corsair TX750 unit is exceedingly good. Not only is the efficiency of the product very high, staying between 82% and 86% at all times, but the voltage regulation circuit is very responsive as well. The voltage fluctuations are minimal even when the load changes are very large, which is amazing for a unit with a single 12V line.

Thermally, the Corsair TX750W will not disappoint as it can remain very cool, especially when the load is low. But the same cannot be said about the acoustic performance of this unit. It remains entirely silent up to 50-60% load, where the fan starts to spin up. At 75% load the TX750 is audible, but not loud. But while working at full load the fan will quickly spin up as it is trying to keep the unit as cool as possible, which causes it to become loud. Running a PSU at full load for prolonged periods of time is not a real world scenario, but even so the Corsair TX750 can become noisy if it has to feed a very powerful system inside a cramped case.
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