be quiet! System Power 9 CM BN302 (BN302)

Kvadratish, praktish, gut

be quiet! System Power 9 CM is a series of semi-modular power supplies from a well-known German brand. In fact, reasonable savings are obtained compared to fully modular counterparts. After all, the power cables of the processor and the motherboard will be involved anyway. The two above-mentioned cables are hidden in a nylon braid. The rest of the wires are made in the form of flat pliable noodles.

Divide and rule

System Power 9 CM is built on the basis of the HEC platform, and with a progressive separate DC-DC conversion circuit. The main +12 volt line is divided into two sub-lines for better voltage stabilization. So, for a 600-watt model, these are 28 and 22 amperes, respectively. A more powerful line is used to power the graphics card, and a weaker line is used for CPU and motherboard.

Slow propeller

The holding high voltage capacitor is introduced by Taiwanese 85 degree Teapo. The fan is branded be quiet! Silent Wings is a first generation, Rifle Bearing which is more durable than conventional Sleeve Bearing. The noise level of the turntable up to half the load on the PSU is at an ultra-quiet level of about 10 dB.

Total security

A full range of electrical protection is implemented: from overheating, overload, power surges and short circuits. The efficiency of the PSU reaches 89 percent, for which the PSU deservedly received the "bronze" award of 80 PLUS. It can only work in 230 V networks, but not 110, however, in our area this is not a problem. The semi-modular be quiet! System Power 9 CM is an even more affordable non-modular counterpart.