Tagan ITZ 700W (Page 3 of 4) | Reports

Page 3 - Physical Look - Inside

Opening the power supply breaks the seal, which voids the warranty -- but hey, what the heck. After removing the cover, we took a nice look inside the Tagan ITZ 700W power supply unit.

The cooling design is a dual 80mm push/pull system, to create airflow by drawing air from inside the case and pushed out with the exhaust fan at the back. While this is an effective and common implemented method with high performance power supplies (To save room for large components, to cool components running at a high temperature, etc), the end result usually means more noise. We'll see if that's the case later.

For now, we can see that the two black heatsinks are aligned with fins complimenting the airflow design to bring air between the pins in order to dissipate the heat and out of the system, as shown in our photo above.

A shot from the side at one of the capacitors and one of two Viking transformers. What's with the mess of the 'yellow paste material' in the middle?

I noticed two Viking transformers with Tagan's ITZ 700W, with the second one in the photo above. As the specifications indicate the availability of power on the rails, we can safely assume that one transformer is responsible for +3.3V and +5V rails, while the other transformer takes care of the quad +12V rails.

The rear fan pushes air over the heatsinks as the front fan pulls the warm exhaust air out of the power supply unit. The heatsink cools the MOFSETs that it resides on.

The fans are Tagan labeled and are temperature controlled by a sensor inside the Tagan ITZ 700W, with a maximum of 2500RPM as far as I am informed of.

... For those who care :)

We can see the side of the power supply internal with the above photo. The cables inside are actually organized quite neatly and are tied and aligned for sleeving and leading out at the back of the power supply. The cables are not likely to interfere with the airflow pattern inside the Tagan ITZ 700W, in which Tagan has done a great job in this regard!

Page Index
1. Introduction, Packaging, Specifications
2. Physical Look - Outside
3. Physical Look - Inside
4. Minor Tests and Conclusion