iXBT Labs - Computer Hardware in Detail

Platform

Video

Multimedia

Mobile

Other

Hiper HPU-5B880-PE Power Supply

A good choice for a powerful gaming rig.

September 15, 2008



<< Previous page

     Next page >>

Built-in USB hub

As we have already mentioned, the PSU is equipped with a built-in 8-port USB hub that is connected to a motherboard with 2 standard solid 5-pin connectors, thus utilizing 2 motherboard USB ports.



The ninth USB port is an outlet for powering and recharging USB devices. Its rated maximum current strength is 1A; at 5V voltage, the power is 5W.



If the PSU is not connected to a motherboard, only the ninth USB port (the outlet) is powered in the Stand by mode. So, it can be used even if the PC is not working.

Having turned on the testbed, we measured voltages of USB ports on the PSU and the motherboard:


Port Power On Stand by
PSU USB hub 5.12 V 0.324 V
PSU USB outlet 5.17 V 5.17 V
Motherboard ports 5.10 V 0.324 V

Judging by the facts, we can see that, unlike the USB outlet, the USB hub is powered from the motherboard, not from a standalone PSU converter. E.g. it's passive splitter. Meanwhile, the hub is based on two NEC uPD720114 chips that can be powered from both the host and a standalone external source. All willing can read the following PDF datasheet (286 KB).





Now let's proceed to USB hub performance. We used a 2.5" external HDD from Verbatim in two standard storage device tests:

  • Buffered reading
  • Buffered writing


As you can see, the performance difference between the motherboard port and the PSU port is minimal, in favor of a direct connection to the motherboard.

Besides, we conducted a large file copy test.



The results are generally the same: the total difference is within 1% of the data transfer speed.

The reviewed solution is rather original, but has a number of drawbacks. First of all, the USB hub is motherboard-powered. That reduces the maximum output capacity of every USB port it has and also doesn't make the hub fully standalone. There is one standalone port, but it's an outlet for recharging USB devices.

Besides, the amount and connection of USB hub ports is hardly optimal, because nowadays every motherboard has 4 to 8 USB ports plus at least 2 ports on a PC enclosure. In all, it's 6 to 10 fully-fledged USB ports. It would be more reasonable to place 4 standalone ports in the hub and go without an additional outlet. Or install 2 or 3 USB outlets and go without the hub, which is more logical for a power supply unit.

As of operation, there are no complaints: both the hub and outlet perform well.

Despite all our criticism, the power supply receives our Original Design award.



Conclusions

The PSU matches its positioning quite fully. If you use it in a gaming rig, you won't be disappointed.

Also, the original and very convenient package deserves the Excellent Package award.



Pro

  • High output voltage stability
  • High efficiency of more than 80%
  • A lot of connectors
  • A complete retail bundle

Contra

  • Unstable at loads less than 50W
  • Ineffective cooling system


Write a comment below. No registration needed!


<< Previous page



blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook


Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.