Kingwin Lazer Gold LZG-850 850 Watt Power Supply

Posted by on Wednesday, April 6, 2011 - 12:00am

Kingwin LZG-850One company that was not offering power supplies until more recently, and have been doing a great job in that market now is Kingwin. We know Kingwin mostly for their hard drive accessories like docks and enclosures, or even cooling products. During their time in power supply production Kingwin has shown their knowledge and competence in this field by offering some fine products, including their latest model with an 80PLUS Platinum rating. Today, we will be taking a look at one of their 80+ Gold rated Lazer Gold models, which has an 850W rating and boasts some quality features.

 

Introduction to the Kingwin LZG-850 850 Watt Power Supply

Over the last past few years the power supply has increased its importance in a PC build. Before it was all about finding a power supply from one of a few companies like PC Power and Cooling, Enermax, Antec or Zippy, not taking into account much else. Many felt that if you owned a power supply from one of these top tier manufacturers you were well set in a quality build, which was basically the case for a long time. But when you did find a power supply from any of those manufacturers, it would also take a toll on your wallet.

This left many looking for alternative manufacturers to purchase a power supply from. This in itself could be cheaper up front, but likely cost you plenty in the long run. Efficiency, quality and stability are definitely the name of the game when it comes to a good power supply, not price and just wattage. Too low efficiency and you're paying out for an increased electrical bill, or too cheap in the components it is built from and it may die prematurely, which could take your system with it thus costing you a whole lot more. Stability may not necessarily cost you monetarily, but it can sure cause frustration!

Over the years we have seen many new manufacturers popping up that offer quite decent power supplies. However, many have also been proved to be pure crap by not living up to their marketed specs, to literally blowing up. Check out the many of reviews from Hard|OCP, JohnyGuru or Hardware Secrets and you'll easily find some of those. These great sites have the ability to test and place specific loads on a power supply that have bought many units to their knees.

One company that was not offering power supplies until more recently, and have been doing a great job in that market now is Kingwin. We know Kingwin mostly for their hard drive accessories like docks and enclosures, or even cooling products. During their time in power supply production Kingwin has shown their knowledge and competence in this field by offering some fine products, including their latest model with an 80PLUS Platinum rating. Today, we will be taking a look at one of their 80+ Gold rated Lazer Gold models, which has an 850W rating and boasts some quality features.

Kingwin’s take on the Ultimate Series Lazer Gold 850

Another power house in the Lazer Gold series, 80 PLUS GOLD certified, LED light, 140mm fans, etc. LZG-850 is also for extreme gamers for their power hungry PCs. It has 10 SATA connectors, 3 PCIe connectors, full modular design, over power protection, and over voltage protection. This is power, this is performance, get monstrous power delivered continuously to your gaming machine and be ready to play.


Specifications

Model: LZG-850

Maximum power:

850 Watts

Version:

SSI EPS 12V v2.92

CPU:

Intel Core i7/Core 2 Quad/Core 2 Duo &
AMD Phenom X4/Phenom X3/Athlon 64 X2

Efficiency:

Up to 90% (At 230V, the average data)

AC Input:

Full range 115V-240V (Active PFC)

Frequency range:

50/60 Hz

Temperature:

0 C ~ 40 C

Humidity:

10%-90%

Safety:

cTÜVus/CE/TUV/CB/FCC/C-Tick/BSMI

Housing color:

Black

Unit dimension:

180(D) x 150(W) x 86(H) mm

Weight:

8.6 lbs (3900g)/unit

Fan size:

One 140 mm Blue LED Fan

Fan Speed/Noise Level:

1600RPM / 28.5 dBA

Features

  • Support Intel Core i5/Intel Core i7/Core 2 Quad/Core 2 Duo & AMD Phenom X4/Phenom X3/Athlon 64 X2 High Performance CPU
  • Compliance with ATX 12V v2.2, EPS 12V v2.91,
    and SSI EPS 12V v2.92 Specification
  • Crystal Cube Modular Plug w/ Patented Power Connector Cable
    Management System
  • More than 2,000 Times ON/OFF Test
  • 80 PLUS® Gold High Efficiency Power Supply Certified
  • Full Range Design from 115V ~ 240V (Active PFC)
  • 87%, 90% and 87% Efficiency @ 20%, 50% and 100% Load
  • PCI-E 6Pin & 8(6+2) Pin Connector Satisfy High-End Graphic Card Requirement
  • Over Power/Under Power/Over Voltage/Short Circuit Protections
  • Stable + 12V Current
  • 140MM Blue LED Fan
  • Intelligent Auto Fan Speed Control
  • Compatible with Crossfire/SLI/3 Way SLI

Closer look

The Lazer Gold series 850 is painted in a matte black finish, covering the entire power supply. Ideal color selection for those with all black interior casings, but still can look good with other colors. As far as its size the unit is not small and compact like the FSP Aurum we reviewed here recently, but is still the ‘standard’ size found, made for the large tower chassis. Coming in at just over seven inches you can see why.

The Lazer Gold series is marketed as a high efficiency 80PLUS Gold member. This means that the Lazer passed the efficiency requirements of >87% @ 20% load, >90% @ 50% load and >87% @ 100% load from the standard North American 115V outlet. We are starting to see more and more Gold certified power supplies, but at the same time the Platinum units are starting to show up the market. Stay tuned from them…

The rear of the power supply consists of the typical honeycomb openings for the warm air to escape. We see there is an Active PFC sticker near the power outlet. Meaning that a series of components are used to keep the power frequency from draw, the same as the frequency of the incoming voltage, in order to try and keep the power factor as close as possible to 1 (or unity). This allows for the same unit to be capable of use all around the world from basically any common wall voltage, from the 120V@60Hz in North America, to 220/230V@50Hz in Europe, to 100V@60Hz in Japan, or anything in between. [Editor's Note: If you're unsure of your unit's PFC capability, a rather sure-fire way to tell is the Active units will not have any means to select the input-voltage near the plugin (between 110V or 220V). If there is a selector switch present then it either has Passive PFC or possibly no PFC, though the latter isn't likely in modern times but I suppose could happen if you go cheap enough...]

Most of the cabling of the Lazer is modular, with some being permanent fixtures. The permanent connections are the main ATX, CPU AUX and two PCIe plugs. All of which would quite certainly be used if purchasing a power supply of this caliber. The SATA, Molex and additional PCIe cables can be added through universal plugs on the unit. That is right you don’t have to worry about which cable you connect to what socket on the unit, each can supply the 3.3V, 5V, 12V and ground, but the cable side is only pinned for what it requires. So no worries about plugging into the wrong socket and getting the 3.3V when your video card wants 12V. Each cable is also covered in a very nice material their entire length, with the permanent ones covered up into the enclosure.

Cables

20/4 Pin ATX

4 Pin AUX

4+4 Pin AUX

4 Pin Molex

SATA

Floppy

6 Pin PCIe

6+2 Pin PCIe

Kingwin Lazer 850

1

0

1

9

10

1

3

3

Here we have the unit powered up. To cool the interiors of the Lazer a 140mm blue glowing LED fan is used, which Kingwin labels the fan as spinning 1600 RPM at 28.5 dBA. This is quite right as we heard very little from the unit during testing. Also the module connections on the unit glow a nice blue color when the system is on (though not as apparent as the fan in the picture).

The sides of the unit consist of the voltage label interestingly on the top of the unit, Lazer Gold logo on one side and bare on the other.


Testing Hardware: Motherboard: Gigabyte P67-UD4
Processor: Intel Core i5 2500K @ 4.5GHz w/ 1.3 volts
Ram: Patriot Sector 5 1333 4GB Dual Channel (9-9-9-24)
Video Card: ASUS Radeon HD 5870
HDD: Hitachi 1TB
Power: Kingwin Lazer Gold 850W LZG-850
Case: Open air
Cooling: Thermaltake Jing CPU

Results

We know that testing a power supply on a loaded system is not the very best way to do so, but you can not overlook real world testing. Other sites have methods that use thousands of dollars in equipment to provide them greater detail. We have a trusty digital multi-meter. Those sites and the methods they use should be the true means of determining how good a power supply really is; however, we feel that showing you how it performs under real world conditions is also a valid measure of its performance.


Conclusion

In our testing we found the Kingwin Lazer Gold 850 watt power supply to be very solid and reliable. We all may not require huge wattage power units to feed our rigs, but if you do or think you will in the future, this one is a real winner. Depending on the GPU setup of the rig the Lazer Gold 850 can supply multiple video card setups that include dual and triple configurations and carries both the Crossfire and SLi certifications.

It isn’t often that you find a high powered power supply that runs at a nice quiet sound level. Well, we found such a unit with this one. On our test bench we heard very little Lazer, with more from other components in the setup like the graphic cards and CPU fans. So, if you can dampen the sound from these two items then you can have a rather quiet gaming rig.

The Lazer Gold 850 will set you back approximately $150, placing it lower than other Gold rated power supplies from companies like Corsair, Seasonic, NZXT and OCZ.

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