Cooler Master Silent Pro M 1000W (Page 3 of 4) | Reports

Page 3 - Physical Look - Inside

Removing the four Phillips head screws reveal the internals of the Cooler Master Silent Pro M 1000W. While it says on the side that if seal is broken, the warranty is void, but here was no conventional sticker seal anywhere that I've noticed. They usually cover a screw and are extremely obvious. Unless three's some seal that I completely missed, so here's something you just might be able to get away with. But there's no user serviceable parts inside for the average user anyway.

Looking at the Silent Pro M from the inside makes isn't very cramped despite an abundance of components. It does justifies its extended length well, as well as the bigger sized fan for additional cooling. This tighter fit certainly won't help heat dissipation, but on the other hand, it would be even more counterproductive to add more in terms of length to this already long power supply. Generally speaking, this power supply is larger in comparison that many other units we've looked at, and contains more components. But it needs to convert and output 1000W of DC power. We'd be very scared if it had less components, and so should you.

Like most other power supplies of this caliber, the transient filter phase starts from the AC input, where the honeycomb mesh is located. There is a small metal box located next to the power switch that holds two Y capacitors for this electrical conversion phase of this power supply unit. Unlike budget PSUs, there are more X and Y capacitors throughout the initial transient filter phase. Further on, there are two more X and Y capacitors, as well as some ferrite coils and a MOV (Metal Oxide Varistor) at the end of this section.

Two giant heatsinks stick out in the Cooler Master Silent Pro M 1000W, spaced quite a ways apart for both optimal heat dissipation and cooling. Even if there is less cooling with two heatsinks compared to three or more seen implemented on other power supplies, the enclosure and the board just simply can not hold any more components in a practical manner. This power supply has a small and thin plastic piece to keep the components from unintended contact with each other.

Another dominating factor of the inside of the Cooler Master Silent Pro M 1000W is the brown filter capacitor next to the first heatsink on the side. As advertised, the filter capacitor is a quality Japanese unit. A closer look reveals it to be a Nippon Chemi-Con KMR96P088, which is a downsized version that is rated for 2000 hours at 105c. Your other components will most likely malfunction long before you try to run try it at 105c continuously. In addition, Nippon Chemi-Con is known for quality in their products. Other components are more likely to fail before the filter capacitor becomes unusable.

The leads for the modular cables on the PCB appears to have been soldered quite well. There is an adequate gap between the back PCB and main components, which should avoid shorts and contribute to better heat dissipation of the power supply. Things inevitably get hot inside any power supply. The build quality of the Silent Pro M 1000W is solid, and the individual components are all secured nicely and effectively.

All the cables are soldered neatly onto the Cooler Master RS-850/RS-A00 main PCB, which signifies both the 850W and the 1000W of the power supply uses the same supporting circuit board design. As always, the internal cables are soldered on, and Cooler Master has done a decent job at such. Tracing the rest of the components reveals the original manufacturer or OEM to be FSP Group (Otherwise known as Fortron Source). Fortron is a large OEM for many different well known companies, and generally manufactures quality power supplies. Although the power supply is manufactured by Fortron, the Cooler Master Silent Pro M 1000W is an original Cooler Master design. In essence, that means Cooler Master designed it and FSP built them.

The automatic full range (100V-240V) AC line voltage selector, power switch, and power adapter can be found on this side, behind the honeycomb mesh. As aforementioned, there are two Y capacitors in the metal box for the transient filter stage. All of these things are soldered on neatly, and are kept hidden from plain view.

Other components on the board include various copper ferrite coils, X capacitors, Y Capacitors, bridge rectifiers, and the such. The capacitors in this context have a yellow glob of plastic around them. It does seems to be applied cleanly and less so in a massive amount like the Thermaltake Litepower 450W I've looked at last time.

Lastly, the fan is a Power Logic PLA14025B12H. Power Logic is a manufacturer of both fans and other cooling solutions, such as heatsinks. It has a rated airflow of 114.4CFM at 1800rpm. The noise level is rated at 38.00dB at full speed, which could be quite loud acoustically at full speed. This is also the highest rated fan out of all of the entire Silent Pro M series, but most likely it is to allow for dynamic fan speed change. Under less than optimal conditions at full load, it would have more headroom for faster airflow, even at the expense of noise levels (It's better than overheating and shutting down, haha). The fan is a two ball bearing design for high endurance.

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