CoolerMaster Silent Pro M2 720W PSU

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INSIDE THE SILENT PRO M2 720W

The casing is a clamshell design made of sturdy steel sheeting, with good fit and finish.


The big rectangular cross section heatsink fins are very familar: I know them to be the type used by Enhance Electronics, the most likely manufacturer of this PSU. The 135mm fan has good geometry for low tonality — the blades' trailing edges are more or less perpendicular to the four struts.


The fan is made by Young Lin Tech, whose site tells us the specs: 12V, 0.2A, 2.4W, 1500RPM, 34.44dBA, 78.13CFM. It should not be a screamer, based on those numbers.


The internal layout is roomy in comparison with recent higher efficiency PSUs, and the heatsinks are big enough to seem retro. All the good PSUs had similarly big heatsinks just a few years ago, but increased efficiency has made them less necessary now.


The big caps are Matsushita/Panasonic —270uF, 420V, 105°C. Most of the smaller caps are Teapo, also 105°C

OUTPUT CABLES

The detachable output cables are flat data-style and just long enough for cases with bottom PSU placement, which puts the main ATX and AUX12V connectors on the motherboard farther away.

Attached:
1 - Main ATX 20/24-pin connector, 55cm
1 - 4/8-pin + 8-pin AUX12V connectors, 60cm

Modular:
2 - 6+2-pin connector and 8-pin connector for video card, 72cm
2 - 3x SATA power connectors, 70cm
1 - 3x SATA power connectors, 94cm
1 - 3x 4-pin Molex power connectors, 70cm
1 - 2x 4-pin Molex and a floppy drive power connectors 95cm

The graphics card power cables are a bit troublesome: The combination of a 6+2-pin connector and 8-pin connector is impractical. Most graphics cards use two 6-pin connectors, in which case both power cables must be used to power just one PCIe card. It is possible to cut the plastic bit which makes it possible to insert the 8-pin plug into a 6-pin socket, but why should the user have to make such a modification?



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