Kingwin Lazer LZ-850 850 Watt Modular Power Supply

Kingwin Company Profile:

"Kingwin was founded in 1992 with a mission to produce quality accessories, solutions, and options for its customers. Its main categories include: external/internal storage solutions, power supplies and thermal solutions. As one of the top producers of high quality, DIY computer accessories, Kingwin is poised to lead today's market. Kingwin works in conjunction with both impressive PC functionality and user individuality. Kingwin enclosures and mobile rack solutions also continue to be the first choice among consumers world wide. Just as impressive are the high performance Kingwin power supplies which are now certified by Nvidia SLI, 80Plus and have received recognition & awards worldwide. The most recent "Mach 1 Modular Series" continues to sweep the gaming market by storm. In addition to the retailer channel, Kingwin has also gained great success among distributors, OEM customers, system integrators, and VARs.  With over 15 years of experience in the computer components market, Kingwin is dedicated to producing innovative products and provide unparalleled customer service. As we look to the future, we will continue to innovate, advance and stand behind our products 100%"

Kingwin is a fairly new brand name in the PC enthusiast power supply market, but they already have a strong line up of power supplies, from their value oriented 'Maximum Series' to their enthusiast oriented 'Mach 1' and 'Lazer' series.  Both of the enthusiast series offer LED's that illuminate both the cooling fan and the modular connections.  Today, we are going to be looking at a power supply from the Lazer series.  The LZ-850 is an 850 watt power supply, featuring an 80Plus Bronze certification and a 3 year warranty.

Upon opening the box, you will find the users manual, power cable, screws, and a plastic case containing all of the modular cables.

Here are some of the main features and specifications from Kingwin's Website:

The Power Supply:

The power supply features a matte black housing and a chrome silver fan grill, which still looks great.  Note that the side features a sticker with the series logo on it.

The side features the power supply's series logo.

Looking at the side of the power supply, there is a label with Kingwin's logo on it, the model number and a condensed specification list.  Note that there are six +12v rails, with +12v rails 1-3 and 6 supplying up to 20 Amps and rails 4 and 5 supplying up to 33 Amps each, which is excellent. The 3.3v supplies up to 24 Amps and the +5v supplies up to 30 Amps. The efficiency is 80 percent or greater at 20%, 50% and 100% loads.  According to the 80Plus website, this power supply has an average efficiency of 87.06% at typical loads (50% load) and an overall average efficiency of 85.27%.  This is excellent and makes this an 80Plus Bronze certified power supply.

There is an large honeycomb style grill on the back which allows the 120 mm fan to exhaust hot air, an on/off switch and AC Power Input.  This power supply does feature Active PFC, so there is no need for a  switch to select the input voltage.  The red 3-way switch allows you to change the color of the LED's located in the fan and modular connections from blue to white, or completely off.  It is good to see that Kingwin gives the user an option to turn off the LED's.

On the back of this power supply, there are eight available sockets for the modular cables to plug into.  If they are not in use, rubber covers are provided to protect the socket from dust. 

Each modular cable features a crystal clear connector.

The picture above shows the modular connection's LED lighting.  You can select from either Blue or White or completely off.  This feature is quite unique and will look great inside a computer case with a side panel window.  Note that each socket only lights up when a modular cable is inserted.

This power supply features the following cables:

There are a total of eight modular cables.

The hardwired cables have an adequate length.

-A 24-pin ATX power connector

-A 4+4-pin +12v CPU Power Connector

-An 8-pin +12v CPU/EPS Power Connector

-2x  6+2-Pin PCI-Express Power Connectors and 2x 6-Pin PCI-e connectors.

-6x Molex Power Connectors

-8x Serial ATA Power Connectors

-1x Floppy Power Connector

Cooling:

The fan's LED's can be either blue, white, or switched off.

There is a 140mm fan on the bottom of this power supply.  During testing, at idle loads, this fan is very quiet, making a only a slight whirr when the computer first boots up.  With loads, the fan barely sped up, making a only a quiet whirring sound, the noise level was still quite acceptable.

Inside the Power Supply:

* Taking this power supply apart will void the warranty. 

Inside the power supply,  there are two large gold colored heat sinks, used to cool down the voltage rectifiers.  The main transformer is in the middle left of the image, while the smaller transformer is to the right of it.  The primary capacitor is Nippon Chemicon branded and rated at 105c, while the secondary capacitors are CEC branded. The PCB layout and board quality is good.

The Nippon Chemicon branded primary capacitor.

The secondary capacitors are CEC branded.

The fan inside is a Globe Fan branded fan.  It has the model number B1402512H with a maximum draw of 0.40 Amps.

Testing:

For this power supply, the test system consists of the following:

-Antec Nine Hundred Two Case

-Intel Core 2 Quad Q6600 Quad Core Processor @ 3.4 GHz (1.40v)

-Xigmatek Dark Knight Heatsink w/120mm Thermaltake ISGC Fan

-eVGA nForce 780i SLi FTW Motherboard

-4GB (2GB x 2) of OCZ Platinum DDRII-1066 Memory

-640GB x 4 Western Digital 7200RPM 32MB Cache Hard Drives

-2x nVIDIA GeForce GTX 260 Core 216 (55nm) Video Cards @ 667MHz Core / 1053 MHz Memory

-Sound Blaster Audigy 2 ZS Sound Card

-Lite-On 6x BD-ROM / 18x Asus DVD-RAM Drives

-4x 120MM fans, 1x 200mm fan

-2x CCFL Lights

(Multimeter Results)

*For additional / larger pictures of the Kingwin Lazer LZ-850 , Click Here

*Voltages are at a 'Max Load' for a typical gaming computer, running Orthos, Sisoft Sandra Hard Drive benchmark and 3DMark06 CPU Test 1 and 2 / Deep Freeze HDR test, and read with a Multi-Meter.

Capacitor Brands (subjective rating):

Primary: Excellent

Secondary: Great

Primary: Nippon-Chemicon

Secondary: CEC Holdings

Voltage Results:

+The results were excellent for this power supply, the results being well within range.  All rails remained strong and there was little fluctuation. 

Stability Results:

+Everything ran fine during testing, the system was stable and performed the tests as expected. 

Fan Speed Impressions:

+During the tests, the fan was quiet with idle loads and only produced a slight whirr with loads.

Installation:

+Installation of this power supply went well.  There were no issues fitting it inside the test system's case and the modular cables kept the cable clutter to a minimum.

Conclusion:

This power supply would be ideal for anyone looking to build multi CPU core gaming / workstation system with two or more high powered video cards.   Although this power supply is not SLi or Crossfire certified, I'm sure that it can handle most of nVIDIA's GPU's in SLi and most of ATI's VPU's in Crossfire. There is an ample amount of power connectors, as well, for its wattage rating.  It is also 80Plus Bronze certified.  At around $150, this power supply is priced adequately for its wattage rating and is on par with other 850 Watt power supplies.  Overall, this is a great 850 watt class power supply and should be purchased by anyone looking for high efficiency, a power supply with LED lights, great output performance, and great build quality.

Pros +

-Excellent power output, with very strong voltage rails

-Three Year Warranty

-Quiet fan

-LED lights on both the fan and the modular connectors.

-80Plus Bronze certified

Cons -

-None

Techaddicts.net would like to give this power supply an Excellent rating and the Highly Recommended Award!

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