Delivery and Specifications

The delivery found with the Cooler Master Silent Pro Hybrid 850 Watt is very good. Even a high-end gaming system or an overclocking setup can be wired seamlessly. It's possible to attach three graphics cards to this PSU and up to twelve devices that have SATA power plugs. There is also the possibility to connect two EPS plugs to motherboards that offer this feature. Another, very useful, addition is the fancontroller in the delivery. Using it, the PSU fan as well as the fans in your chassis can be controled.

 

Cooler Master equips its 850 Watts Silent Pro Hybrid power supply with a 120 millimeter fan which is very silent. If the load is below 20 percent the fan wont spin and therefore this PSU makes no noise at all. Under 100 percent load the fan becomes subjectively audible. Cooler Master chose to put a fan into this power supply which is rated 0.20A at 12 volt.

A closer look at the Cooler Master Silent Pro Hybrid 850 Watt's internals shows that there is good input filtering. There are for example two ferrite coils as well as metal oxide varistor. Furthermore there are four polyester X capacitors and another four ceramic Y capacitors. This is twice as much as recommended by standards. There is also a MOV which takes care of voltages peakes.

On the primary side there are two japanese capacitors from Panasonic/Matsushita. Each of them have a capacity of 330 uF at 420 Volt. Cooler Master put them in parallel and therefore there is a capacity of 660 uF at 105 °C. On the secondary side there is a mixture of Rubycon and Hippon Chemi-Con 105°C capacitors. In high-end PSUs these days all recifiers first generate +12 Volt voltage. Afterwards +5 Volt and +3.3 Volt are being generated.

On the backside of the doughterboard there are the connectors for the modular cable management. Internally the secondary side of the PSU has been connected to the doughterboard by several wires. Basically the Cooler Master Silent Pro Hybrid 850 Watt is a very well built PSU but at this price point this can be expected.