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InWin IP-AD160-2 Power Supply

We already know this PSU from our IW-BM-648 system case review, so we’ll only discuss its operating parameters today.

The specifications have not changed since our last test. The cables and connectors are the same, too:

  • One mainboard cable with a 20+4-pin connector (25 cm)
  • One CPU cable with a 4-pin connector (31 cm)
  • One cable with two SATA and one PATA power connector (13+6+20 cm)

As opposed to the above-discussed models, this PSU lacks SATA power connectors. You won’t be able to power two HDDs (2.5- and 3.5-inch ones) and an optical drive without adapters. However, the spacing of the SATA power connectors on the cable indicates that they are not meant for an optical drive. The cable is just too short to be plugged into the optical drive and to one of the HDDs. It implies that the developers of this computer case do not really think it necessary to install an optical drive into it.

The PSU could switch to our UPS’s batteries at any load.

The output voltages are even more stable than those of the earlier-tested sample taken from an InWin BM-648. The PSU can work normally at near-zero loads and its voltages are never off the required ranges.

The high-frequency voltage ripple is strong but within the permissible range.

The same goes for the voltage ripple at double the mains frequency.

This PSU is the most efficient of the four: almost as high as 80% even at 50 watts (compared to the others’ 70%) and above 84% at higher loads, except full load.

The power factor graph is indicative of active PFC.

The fan is the only difference of this PSU from the sample we tested earlier. It is a 7-blade 40x40x10mm ADDA AD0412MS-G70 with a rated speed of 4800 RPM instead of an AXR fan.

The rated speed was reached at full load, but the fan was hardly audible even at 5000 RPM. At a load of 50 watts the fan rotated at 1600 RPM only, which was a very low speed for such a small form-factor.

The speed of the fan is higher by a third at any load compared to the PSU sample we tested earlier, but without any worsening in terms of acoustic comfort. The 80mm fan is the main source of noise in this computer case, anyway.

The temperature data about the incoming and outgoing air do not agree with reality. The PSU case gets very hot at high loads (and is going to be even hotter in a real-life system since there is no way for the hot air to leave the chassis). The temperature delta is small because the air flow from the 40mm fan is halted inside the PSU. The outgoing air stream is too weak to affect the thermal sensor located a few centimeters away.

The standby source is stable at any loads.

The InWin IP-AD160-2 is good overall, offering enough output power for a compact computer. It is highly efficient and quiet. The only downside we can see about it is that its cable system may not be optimal for some configurations.

 
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