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Enhance EPS-1280GA

The next product to be discussed is the 800-watt EPS-1280GA from Enhance. It comes in original packaging.

I’m not sure what the designer’s concept is here, but the black box padded with black cloth on the inside provokes thoughts about the futility of life in me. Hopefully, the power supply will be much livelier in my tests…

Exterior Design

The PSU has a small and completely black case without any remarkable features. The front panel is perforated as heavily as possible. The On/Off switch has been sacrificed for the sake of airflows, too. The PSU is equipped with fixed cables.

Interior Design

It is the characteristic shape of the heatsinks that betrays an Enhance power supply. Well, we don’t have to guess the real manufacturer of the PSU here because this product sells under Enhance’s own brand.

The EPS-1280GA is designed in a conventional way without any newfangled ideas like a resonance inverter or DC-DC converters.

Teapo capacitors are installed at the PSU’s output.

Specifications

This model can yield up to 780 watts (65 amperes) out of its total 800 watts via the +12V power rail which is split into four “virtual” lines with different current limitations. The high-current lines are meant for graphics card cables, as usual.

Cables and Connectors

The PSU is equipped with the following cables and connectors:

  • Mainboard cable with a 20+4-pin connector (54 cm)
  • CPU cable with a 4+4-pin connector (55 cm)
  • Two graphics card cables with one 6+2-pin and one 6-pin connector on each (55+15 cm)
  • One cable with three PATA power connectors and one floppy-drive plug (56+15+15+15 cm)
  • One cable with three PATA power connectors (56+15+15 cm)
  • Two cables with three SATA power connectors on each (55+15+15 cm)

This PSU is no better than the rest of the models covered in this review in terms of connectors or cable length, but not much worse, either. It has all power connectors necessary to build a modern gaming computer.

UPS Compatibility

Working with my APC SmartUPS SC 620, this power supply was stable at loads up to 350 watts when powered by the mains and up to 340 watts when powered by the batteries. They had no problems switching to the UPS’s batteries.

Output Voltage Stability

The PSU keeps the three main output voltages within a 3% range from their nominal level at any load. That’s good.

Output Voltage Ripple

Although the high-frequency pulsation of the output voltage can be easily observed, it is far lower than the permissible limits.

Noise

This power supply is cooled by a 120x120x25mm Adda fan with 2-pin connection.

Enhance power supplies usually produce a long and flat graph of the fan speed at low and medium loads but the EPS-1280GA is different. The fan accelerates steadily starting from 150 watts.

Since the initial speed is as low as 533 RPM, the PSU is quiet. It can hardly be heard at all at loads below 350 watts and its noise only becomes uncomfortable at loads of 600 watts and higher.

Efficiency and Power Factor

The EPS-1280GA boasts good efficiency of 89% at the peak, over 86% at full load, and over 80% at any loads above 50 watts. I’d even say that’s an excellent result!

Standby Source

Despite a high load capacity, the standby source yields a stable voltage. There is only about 0.1 volts between the maximum and minimum.

Summary

I have not mentioned any innovative technologies when talking about the Enhance EPS-1280GA power supply. It has a plain exterior and standard functionality, yet leaves a highly positive impression. It is a quiet and stable high-wattage PSU that can easily cope with a serious gaming computer. It seems to be the best choice for users who just need a good PSU and don’t want to pay extra for shining LEDs or promo posters.

 
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