Antec TruePower New 750W Power Supply Unit Review

An Even Closer Look
This is where we take a quick peek into the internals of the PSU which is one of the best ways to judge the quality of the PSU. We would not recommend doing this yourself as it will not only void your warranty, but the capacitors inside a PSU can hold a dangerous charge for a long time- we open it up so you don’t have to!

Opening up the PSU (apologies for photos) the first thing we will notice is the heatsink, or lack thereof. The heatsink it tiny! And it is not the sort of heatsink us PC builders are used to seeing- the type with many fins coming from a solid block, but is instead a very basic kind that did not have a large surface area and appeared to be coated in black paint, and in some areas, heatshrink to insulate it! Modern PSUs do not produce as much heat as they used to due to the high efficiency, however a small heatsink like this means that when stressed, the fan will have to spin a lot faster to cool the unit than if it had a normal style heatsink. The heatsink also appears to be painted black which may be some attempt at getting the heatsink to emit some of it’s heat as IR, but we have seen that leaving bare metal for air to directly cool is a better proven method.

We can also see that the fan is a 120mm brushless model from Adda.

The AC transient filtering is good quality, the transient filter smooths out the input from the wall socket and is a vital part of making the PSU stable. To do this, a system of capacitors, ferrite coils and a metal oxide varistor. Half of this process is done on the little daughterboard directly in front of the AC inlet and the rest is done later on.

[LEFT]We counted that a total of 3 ferrite coils and 8 capacitors have been used in this stage which goes above and beyond the call of duty. We can see that some of the cost-cutting measures on the less important parts such as the packaging has paid off here.

The capacitors used throughout this unit are manufactured by a company called Nippon-Chemicon based in Japan. These are good quality capacitors which is another area some manufacturers choose to cut costs.

There is no point going into the vast array of unnecessary information such as the types of transistors used as we can clearly see that this is a well-manufactured unit that would probably feel patronised by the likes of me poking my amateur fingers around it’s wonderfully crafted internals. The use of daughterboards in this unit is a great idea as it reduces the need for a bigger unit.
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