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Review by: Daniel
Date: June 29, 2009
Provided by:
Xigmatek |
Xigmatek NRP-MC751 750
Watt Modular Power Supply
Company Information:
"Purpose and targets of becoming
one of the worlds leaders in thermal PC Industry were set for
Xigmatek Co. Ltd in 2005, the founding year! To ensure reaching this
project aims, Xigmateks management followed up with hard work,
experiences and customer friendly business style. Honing one of the
world’s most efficient manufacturing operations, Integration
Presence in major economic regions, being tied up with most
important strategic alliances between suppliers and academia and
further majority investments in R&D are some of Xigmateks aggressive
incensement strategies. Combining the cream of product
designers, R&D engineers and technical people (main team in Germany)
Xigmatek is proud and full of confidence to offer excellent quality
products and service to cover the customers requirements and
demands. Within the standard channels as the consumer market and
the distributing electrical appliances, Xigmatek will keep on
focusing on development and set up even new sales channels to comply
ever-changing demands and requirements. Several years of experiences
company background in Thermal IT industry provides our customer the
best, reliable, environmental and performing Thermal/Cooling Systems
including excellent Service to fulfill global users and customers
demands."
Xigmatek is a new brand to the power supply industry, but they
already have great power supplies to offer to consumers. Most
of them appear to be built by Channel Well Technology, which is
renowned for their great performing power supply platforms.
Xigmatek's power supplies range from 500 watts, all the way to their
flagship NRP-HC series 1500
Watt power supply. Today, we are going to take a look at their
NRP (No Rules Power) MC line of power supplies. The particular
model that we are reviewing is the NRP-751 750 Watt, which is a
mid-range
wattage power supply. This power supply is SLi certified
and also 80Plus certified, which is becoming the standard in high
performance power supplies.
Upon opening the box, you will find
the users manual, a warranty card, power cable, screws, two zip
ties and a bag for holding unused modular cables.
Here are some of the main features
and specifications from
Xigmatek's Website:
-Multiple +12V Output
Enhanced +12V current capability broadens utilization
possibilities.
-High Efficiency (up to 80%)
Optimal solution for lower energy consumption, noise, and
heat.
-Active Power Factor Correction (0.99 PFC)
Reduce line loss & power distortion.
-Double Forward Circuit Design
Increase the reliability and efficiency of power.
-Universal AC Input(Full Range)
Plug & run safely anywhere in the world.
-Smart and Silent Fan Control
Smart thermal control to balance noise and cooling.
-13.5(14)cm Cooling Fan
Maximum airflow, minimum noise level and extra durable life.
-PCI-Express Connector
Support new PCI-E connectors for Video Card.
-Patented Easy Swap Connector
Unplug connectors easily & quickly.
-Cable Management Swap Connector
Improve messy cable problem.
With cable management swap connector.
-PC Power Supply Design Guide
Support ATX / BTX / EPS.
-Multiple Platforms
Capability for Intel / AMD platforms.
-Output Protection
Completed protection OVP / OCP / OPP / UVP / SCP / OTP.
-Mesh Sleeve Cable Design
Make cable management easier & airflow efficient.
-Honey Comb Structure
-Japanese Electric Capacitors |
The Power Supply:
The power supply comes in a cloth bag, which is
certainly unique. The only other company I've seen doing this
was Corsair.
The power supply features a
traditional matte black colored housing and fan grill. I prefer this
design over Thermaltake's version of the CWT-PSH design, because the
fan grill is actually separate from the casing of the power supply.
A sticker that is made to look like leather. It
says: "No Rules Power"
Looking at the side of the power
supply, there is a Xigmatek label with their logo on it, the
model number and a condensed specification list. Note that
there are four +12v rails, each supplying up to 18 Amps, for a total
of 72 Amps. The 3.3v supplies up to 30 Amps and the +5v supplies up to
28 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
83% at typical loads (50%) and an overall average efficiency of 81%.
There is an large grill on the back
which allows the 140 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.
Note that the rear looks identical to other units utilizing CWT's
PSH platform.
This power supply features the following cables:
-A 24-pin ATX power connector
-A 4-pin +12v CPU Power Connector
-An 8-pin +12v CPU/EPS Power Connector
-2x 6+2-Pin PCI-Express Power Connector and 2x
6-Pin PCI-Express Power Connector
-7x Molex Power Connectors, with a grip for easy removal.
-6x Serial ATA Power Connectors
-1x Floppy Power Connectors
Cooling:
There is a 140mm fan on the bottom of
this power supply. During testing, at idle loads, this fan is
somewhat quiet, making a slight whirr when the computer first boots
up. With loads, the fan sped up a bit, making al whirring sound, but the noise was
still acceptable.
Inside the Power
Supply:
* Taking this power supply apart
will void the warranty.
Inside the power supply, there
are three densely finned red colored heat sinks, to cool down the voltage rectifiers. The main transformer is
near the upper middle of image, while the smaller transformer is
below it. The primary capacitor is Hitachi branded and rated
at 85c, while the secondary capacitors are Nippon Chemicon branded.
The PCB layout and board quality is great. It is nice to see
the slight modifications that Xigmatek made to the traditional PSH
platform by adding color to the heat sinks and the heat shrink
wrappers.
The primary capacitor is Hitachi branded.
The secondary capacitors are Nippon Chemicon branded.
The fan inside is a Yate Loon branded
fan featuring blue LED lights. It has the model number D14MB-12 with a maximum draw of 0.70 Amps.
It is rare to see a clear bladed Yate Loon branded fan in CWT's
power supplies.
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)
-ZeroTherm Nirvana
120 Heatsink
-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
-1x nVIDIA GeForce
GTX 260 Core 216 (55nm) Video Card @ 667MHz Core / 1053 MHz Memory
-Sound Blaster Live!
5.1 Digital 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 Xigmatek NRP-MC751,
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:
Excellent
Primary:
Hitachi
Secondary:
Nippon-Chemicon
Voltage Results:
+The
results were excellent for this power supply, the results being well
within range. All rails remained quite strong, except for the
5v rail, which had a slight voltage drop, down to about 4.98v.
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. Since this
power supply is modular, the interior of the case was much neater
because unneeded cabling can be put away.
Conclusion:
This power supply would be
ideal for anyone looking to build multi CPU core gaming /
workstation system with
two moderately powered video cards. This power supply is SLi
certified for two GeForce 7900 GTX or two GeForce 7800 GTX video
cards. I think it should be able to handle more than that,
since those cards are outdated. There are an
adequate amount of power connectors, as well, for its wattage rating. It is also
80Plus Standard certified. At around $100 (after a rebate,
$125 before), this
power supply is priced perfectly for its wattage rating. Overall, this is an
excellent value for a 750 watt power
supply and should be purchased by anyone looking for efficiency, great output performance, and great
build quality. Great work, Xigmatek!
Pros +
-Excellent power output
-Three Year Warranty
-Quiet blue LED fan
-Good Price
-80Plus Standard certified
-Modular
Cons -
-Warranty information is not easy to find.
Techaddicts.net
would like to give this power supply an Excellent rating!
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