Macropower MP360AR Ver. 2 (360W)
Power supplies manufactured by HEC (Hirolchi), and the Macropower MP360AR is among them, have already been tested on our site, but they have all been compliant with the ATX12V 1.2 standard, while the MP360AR is a typical representative of the new version of the standard, ATX12V 2.0. This PSU can ship on its own or in system cases manufactured by HEC/Compucase, for example in the Ascot 6AR2.
This PSU is designed in an absolutely standard way. It doesn’t differ from any other midrange ($40-50) power supply: a gray steel case and one 8cm fan without highlighting. It is also a typical solution internally – without power factor correction, without independent regulators on the output, without detachable cables…
The assembly quality is high, as with all products from HEC. The PSU has six power connectors for PATA drives and two mini-plugs for floppy drives and only one SATA power connector; the mainboard power connector is 24-pin, like the standard demands (an adapter for the 20-pin connector is enclosed with the PSU).
As you see, the power supply exactly conforms to the requirements of the ATX12V 2.0 standard to 350W units (the full wattage of the MP360AR is a little higher, 360W, as its name suggests). The combined load power on the +5V and +3.3V rails has diminished greatly since the previous versions of the standard. It is now only 130W, so this PSU won’t suit for powerful last-generation systems that heavily load the +5V rail (for example, a senior Socket A processor on a mainboard with a 5-volt VRM plus a RADEON 9800 PRO graphics card). I should note that our sample of the power supply (it was an off-the-shelf product rather than an engineering sample) didn’t have independent current limitations on the +12V outputs – the small additional card with the appropriate circuit had not been soldered in. It does not compromise the PSU’s functionality, so this solution is quite logical unless the manufacturer wants the particular product batch to comply with the EN 60950 safety standard.
The cross-load characteristic of the PSU confirms its optimization towards 12-volt-oriented systems. It maintains the load on this rail just admirably, up to the maximum current of 25 amperes. The reaction of the PSU to a high load on the +5V rail is quite typical – other midrange power supplies behave perfectly like that.
The pulsation on the +5V rail is practically zero. The pulsation on the +12V rail seems big in comparison, but it doesn’t exceed 70 millivolts even when the rail is under full load, while the acceptable value is 120 millivolts.
The rotational speed of the fan varies depending on the temperature (you can see a copper buckle with a thermo-resistor on the butt end of the left heatsink in the snapshot above), but the min and max fan speeds are both quite high, so this is not a noiseless PSU. The fan is rather quiet at small loads, but can become the loudest in your computer as the power supply warms up.
Thus, the Macropower MP360AR Ver.2 is a typical ATX12V 2.0 power supply. On the one hand, it has a small load capacity on the +5V rail, a relatively noisy fan and an unassuming exterior (if you set it against the units from A.C. Ryan and CoolerMaster). But on the other hand, it can boast a high quality of manufacture and an excellent load capacity on the +12V rail. Considering that it costs much less than the above-described models, the PSU from Macropower is going to be a good choice for a modern midrange computer system, but more suitable for office than for home applications – because of its noisiness.