Page 3 - Physical Look - Inside
After removing four smaller Phillips-head screws from the sides of the power supply, the interior of the Antec High Current Gamer M 750W is revealed to us. Again, I must warn users cracking open your power supply will void your warranty. Unless your power supply is out of warranty already, or you have a really good reason to do so, I recommend you to not open it and void your five year warranty. A five year warranty is pretty standard, and should last at least the life of the power supply. Personally, I have yet to have a problem with a PSU within their warranty period, it is really not advisable to void the warranty and risk any having problems.
Unlike the previously reported upon FSP AURUM S 600W, the interior design of our Antec High Current Gamer M 750W isn't quite as minimalistic. In no way is the interior overbearing or overly cluttered, it's just most PSUs compared to FSP builds just have more components. For a power supply of this size, the interior is still fairly spacious in between the three major heatsinks seen above. Since the Antec High Current Gamer M 750W is a modular power supply, a daughterboard can be seen on the back. Three major heatsinks are used to dissipate heat from the components in addition to the 135mm fan, which we will take a closer look at later on in this report.
As with most other power supply units, the fan is connected to the mainboard using a 2-pin connector. This means if your heart really desires, you can change the fan. The problem is you still have to open up the unit in order to change it, so even having the option would mean one would have to void their warranty in order to do so. Since this power supply also comes with a five year warranty as aforementioned, I would suggest against trying to swap out the fan.
From the back, we can see a metal box which houses the male power connector, automatic full range (100V-240V) AC line voltage selector, and power switch. The first input stage into any standard computer power supply unit, the AC transient filter stage, starts at the AC input. The AC input is found hidden behind this metallic box, and moves through the various X and Y capacitors. Inside of this metallic box shielding, there is one X capacitor, two Y capacitors, and one CM choke. On the main PCB for the second part of the AC transient filtering stage, there is one more X capacitor, two more Y capacitors, and two more CM chokes. In addition, there is also a single MOV (Metal Oxide Varistor) here.
Looking at the other side of the Antec High Current Gamer M 750W, we can clearly see the daughterboard that is used to handle the modular cables. As a testament to the neatness of the design and implementation, we see the soldering is done well, with no excess globs left in other places. A small plastic shield is used to protect the contacts from the rest of the PSU components, and to prevent things from getting into this important area. Overall, the cables and components are neatly organized in the Antec High Current Gamer M 750W. After doing some research on our PSU, we deduced the manufacturer of the Antec High Current Gamer M 750W to be Seasonic due to the parts used, and the overall organization of the power supply. As with most Seasonic units, the design is clean and executed very well. The usual components from Seasonic are also seen here. Starting with the two primary filtering capacitors, we see two Nippon Chemi-Con capacitors. The bigger one is rated at 400V, 330uF, and operating temperature up to 105c, while the smaller one is rated at 400V, 220uF, and an operating temperature up to 105c. In other words, quality Japanese capacitors are indeed used for this design.
Although Nippon Chemi-Con capacitors are used for the primary capacitors, it is possible that some companies will choose to use non-Japanese secondary capacitors to save money. However, this is not the case with the Antec High Current Gamer M 750W, as it also uses Japanese capacitors for the secondary capacitors. They are all rated at up to 105c with differing voltages and capacities. A single ZLH series Rubycon capacitor can also be found rated at 16V, 3900uF, and operating temperature up to 105c. With all of these capacitors, we can safely say that all of the capacitors are from Japanese manufacturers such as Nippon Chemi-Con and Rubycon.
Five Diodes Inc. SBR30A50CT rectifiers can be found in the Antec High Current Gamer M 750W. As with modern high efficiency power supplies, all rectifiers produces the +12V out -- while the +5V and +3.3V outputs are generated from the +12V output using a DC to DC converter within the power supply unit. The SBR30A50CT's rated average rectified output current is 15A per leg for a total of 45A. The forward voltage drop at 15A and 125c has a maximum of only 0.50V. At 25c with forward current of 20A, the maximum forward voltage drop is listed at 0.55V.
As with the majority of Seasonic designs, we see them going back to good old ADDA for their 135mm fan. The specific model used in the Antec High Current Gamer M 750W is the ADN512UB-A90LD. As with most ADDA fans, we can pull the specifications straight from the model number due to their model numbering scheme. AD means the fan is a DC axial fan, N5 indicates the frame size of 135mm, 12 indicates the 12V DC voltage, U means ultra high speed, and B indicates the usage of ball bearings. The second part of the model number starting with A indicates a thickness of 25mm; 9 shows the nine blades on the fan, 0 means it functioned by impedance. Finally, LD shows that the fan is low noise and dynamic. It is rated to run at 0.44A meaning, it uses 5.28W of power at maximum speed.
Page Index
1. Introduction, Packaging, Specifications
2. Physical Look - Outside
3. Physical Look - Inside
4. Minor Tests and Conclusion
