Cooler Master Silent Pro series was created with an idea, but also with influence of users’ needs, for as much as possible, silent computer. We had an opportunity to test one of them with output capacity of 600W - Silent Pro M600. At first glance on full product’s package we can conclude few things about this device.
Firstly, the whole series is extremely silent or to be more precise it is certified at only 16dB. Cooling solution represents a 135mm fan. This exact model that we tested (600W), didn’t heat up even under high load. The most responsible for that are cooling plates that are made from pure copper. Plates transfer heat to aluminum coolers which are cooled by earlier mentioned fan. This is solution that we often see on heatpipes of air cooled systems - copper faster “accepts” the heat and aluminum faster “gets rid of it”. Anyway, aluminum coolers are designed in such a way that they do not create much noise (noise is at minimum level). Fan rotation speed depends on load of power unit and only amount of load depends will fan rotate faster or slower. Everything on this cooler is dedicated to achieve as silent operation as possible so Cooler Master even provided in package two covers made from very quality rubber that are easy to mount and their purpose is to reduce vibrations of power unit mounted in computer case so power unit won’t produce additional noise.
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Connectors present are: 24-pin connector for motherboard (if you need it could be 20-pin), 8-pin for CPU (that could be 4-pin), two PCI-E 8-pin connectors that could be also 6-pin, five molex connections and even nine SATA and for the end one Floppy power connector.
Quiet testing
We performed tests in following way. First we measured power on EPS 12V branch when system had lowest possible consumption (system was halted after loaded BIOS screen) and than in idle mode when system was loaded (Windows). Finally we measured power drop in full load mode. System was tortured with popular 3DMark06 program that was set to work in loop, while in the background worked Quad Prime95 application and defragmentation of HDD. Than we started with measuring power drop on PCI-E and voltage drop in idle and full load modes. Results showed following.
| Cooler Master Silent Pro M600 | |
| EPS 12V CPU +12V |
|
| Bios | 12.16V |
| Idle | 12.15V |
| Full Load |
12.05 ÷ 12.06V |
| 12V GPU +12V | |
| 1st graphics card | |
| Idle | 12.17V |
| Full Load |
12.17V |
| 2nd graphics card |
|
| Idle |
12.17V |
| Full Load |
12.09 ÷ 12.1V |
Test Configuration: ASUS P5N-T Deluxe,Intel Core 2 Quad Q6700 @ 3400 MHz – 1.45V,
2 X 1 GB DDR2 Transcend aXeRAM 1066 MHz,
2 X ASUS 9800 GTX,2 X WD Caviar 80gb, 7200rpm, SATA
Choice of components for test rig isn’t accidental. We picked them carefully with “worst case scenario” in mind. 65nm Quad Core processors (especially if they are overclocked) are truly big power consumers, and two NV 9800GTX graphics cards were up to now problem for PSUs of other manufacturers with similar characteristics. We can only conclude that Cooler Master Silent Pro M600 passed the test and when you add the fact that CM gives 5-year warranty on this model than InsideHW Approved award is definitely deserved. In the end we must mention that Silent Pro series has, at this moment, models with 500W and 700W output capacity and both are modular type.
