The PSU’s cables are grouped into five bunches depending on their purpose. These are:
- Mainboard cable with a 24-pin connector (58cm)
- CPU cable with an 8-pin connector (58cm)
- CPU cable with a 4-pin connector (58cm)
- Graphics card cable with one 8-pin and one 6-pin connector (44+4cm)
- Graphics card cable with one 8-pin and one 6-pin connector (52+4cm)
- Cable with one Molex connector (33cm)
- Cable with one Molex connector (45cm)
- Cable with one Molex connector (63cm)
- Two cables with two SATA power connectors on each (48+15cm)
- Cable with a USB connector (61cm)
Included into the box are 8→6-pin adapters for graphics cards and Molex→2xMolex splitters. The cables near the SATA power plugs are wound with nylon tape for some reason. It may prove to be difficult to connect them to HDDs that are installed crosswise in the system case and nearly touch the side panel with their connectors. You can cut the tape with small pliers, though. This won’t do any harm to the cables.
The PSU’s load capacity matches that of the above-described HPU-4M880 model: it has four +12V lines, two of which (with a current of 30A each) are wired to the graphics card cables, and rather powerful +5V and +3.3V rails.
The PSU worked without overheat or instability at loads from 50 through 860W. Together with an APC SmartUPS SC 620 the power supply worked at loads up to 375W (from the mains) and 335W (from the batteries). The UPS switched to its batteries and back to the mains without problems.
The output voltage ripple meets the requirements of the industry standard.
+3.3V is the only imperfect voltage out of the main three. It deflects by slightly more than 5% at a near-maximum load. Well, this defect is negligible just because such a balance of loads cannot occur in a real computer. The +5V and +12V voltages are superb. The former deflects from the nominal value by no more than 3% whereas the latter keeps within a 1% deflection.
The PSU boasts high efficiency. Its maximum efficiency is over 85%.
The Yate Loon fan does its job well: the fan speed is but slightly above 900rpm at low loads, making the HPU-5K880 a rather quiet power supply. The fan only accelerates much at loads higher than 500W.
It is hard to say anything new about the Hiper HPU-5K880-PE. I didn’t find any serious defects in it whereas the advantages of the new series of Hiper’s PSUs have already been listed above. In brief, it is a high-quality, high-wattage, stable and low-noise product with one special feature. It’s got an integrated 8-port USB 2.0 hub.