Tuesday, March 28, 2006 more info/comments
Enermax Noisetaker II 701AX 600W Power Supply Review #663:
 
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Supplied by: Maxpoint
 
Author: Rodney Reynolds
Editor: Sherry Reynolds

Introduction:

First, a little about the company, Maxpoint. They are best known as Enermax. This next blurb is from their website on their company structure:


“About Enermax: Enermax Technology Corporation, founded in 1990, is a leading manufacturer of high-end computer products. Established with a passion for progress, Enermax believes that the needs of our customers drive our design and development. Our aim is mutual growth and strength, enabling our team to help solve the most complex business challenges. Our very forward solutions provision is an integral part of a result-oriented relationship. Long a mainstay of the computer industry, Enermax power supplies have been ranked first for mission critical applications and high-end systems.

Our Mission: Our team at Enermax is dedicated to design and diligent product development. Our engineers are hard at work for you. Our product is at once value and performance based. We ensure that all the information needed to make an informed purchase is available and presented in an easy to understand format. Our technical support department constantly studies and tests the latest hardware to be as informed as much as possible to help you with any issues you may have. Our customer service is a testament to our passion for you.

Our Customer Focus: Enermax offers amount the industry's most comprehensive warranties. For the life of our product we will provide both technical and customer support. Our forward endeavor of being consumer driven is not generic cliché but our ethic and philosophy.~ more info

I've reviewed many Enermax products over the years, the first of these reviews was back in 2004. Enermax is best known for their Power Supply Units (PSU), and I still have one of their PSUs from about 5 years ago. It still works great except it doesn't meet todays computer system demands. Some people swear by Enermax PSUs and won't buy anything else because they are so reliable. While PSUs are their mainstay, they also have countless other products; Cases, Peripherals, Rackmount chassis, and more.

With the increasing demands from the latest computer equipment, Power Supplies are required to have more and more wattage. With Dual NVIDIA SLI and ATI Crossfire gaming setups, along with countless other computer hardware, a lot of juice is required. This especially holds true for those who wish to push their hardware to the limit. Hardcore gamers that overclock will demand lots of quality power.

Packaging:

They shipped this product to me in a cardboard box, along with foam packaging snow to prevent damage and to prevent it from moving around. Additionally, this PSU box was shrink wrapped in plastic, insuring that the product has not been opened. If shrink wrap is removed, then contact the reseller or Enermax directly.



Also note: the PSU itself had bubble wrap around it to further prevent damage. If that wasn't enough protection the PSU is wrapped in cardboard. It's very important that a product is packaged correctly because they can and often do sustain damage when not. It's comforting to see that most companies nowadays take great care in insuring their products arrive safe and sound. There is nothing worse than purchasing a product with your hard earned money only to find out it has been damaged in shipment. Thankfully, this product arrived in perfect working condition and that's testament to the way it was packaged.



Included with this product is a Lanyard, four Screws for mounting the PSU in the case, two badges, User's Manual, Power Cable, and the Power Supply.



Specifications:
 

This particular product is available in one model, EG701AX-VE(W) (Part No.: W0083RU). This power supply has a continuous wattage of 600 which is ample power for today’s computer systems.

Now how is this wattage determined? Well to understand this, you need to know what rails are.
Rails are basically well regulated transformers which convert domestic current into the voltages that your computer system can use. There are essentially two different rails: the +3.3/+5v rail and the +12v rail. In this particular case the approximate maximum peak output of the +3.3/+5v rail is 180 watts and the +12v is 420 watts, which is essentially how the wattage of this power supply is determined.



The 3.3/5v rail is responsible for the motherboard, memory, PCI cards, AGP card and so on. The 12v rail is responsible for the HDD’s, DVD, CD-ROM, fans, etc.

Ok, let's get into the details and specifications!

Here are the peak amps on each rail. The +3.3V is 34A, and the +5V is 34A. Unlike most power supplies with only one +12V rail, this product has two: The +12V1 is 22A, and the +12V2 is 22A. Also, the AC input specs are:
100-240VAC, 50~60Hz, 9.5-4AA.

This power supply meets the
SSI EPS ATX 12V v2.1/2.2 specification. For additional information on form factors please visit Form Factor website. This basically means that a power supply must be able to sustain full load in 50° C (122° F) ambient conditions, although power output on all models will decrease ~1° C starting at an ambient temperature of 40° C. Having the ATX 12V v2.01/2.02 specification is important because some power supplies tend to overheat and shut down the system under max load. Higher end power supplies float in the ~85% range. This PSU is 80% efficient. Note that the more efficient a power supply is, the less heat will be generated, and therefore it won't require excessive cooling.

This power supply also has Active Power Factor Correction (PFC). Active PFC is preferred over Passive PFC because it provides a more efficient power frequency. This reduces total harmonics, corrects input voltage, and it allows for a full input voltage range. The disadvantage is that it increases the cost of the power supply. This PSU has a
0.99 Active Power Factor value.

Additionally, this product is 100% Hi-pot, Chroma,
ATE (Automatic Test Equipment) & Burn-in function tested. So what the heck does all that mean? Well, production Hi-pot testing ensures insulation integrity. Chroma is a world recognized leader in power supply testing equipment which includes automated power supply test systems, electronic loads, programmable AC power supplies, and related equipment to support the power conversion industry. Finally, Burn-in is really a stress test and means it was tested at full load and still meets specs.

A power supply also needs to be fail-safe. This unit has Under Voltage Protection (OVP), Over Load Protection (OLP), and Over Temperature Protection (OTP).

Also, it's Safety/EMI Approved:
UL (Level 3), cUL (Level 3), VDE, CB, NEMKO, SEMKO, DEMKO, FIMKO certifications.

Ever wonder who actually makes a particular PSU? Most companies do not make their Power Supplies in-house. Rather, they are made by an original equipment manufacturers (OEMs) which are probably unknown to most of us. This is not the case with Enermax PSUs though. So, how does one go about finding out who actually made it? Well, that's very simple. Just get the number which is below the UL logo. In this case it's
E134014. Now visit this UL Database site and enter the number.



Another important factor is the company's warranty policy. The following warranty program information is taken from their site: "Enermax offers the industry's most comprehensive warranties. For the life of our product we will provide both technical and customer support. Our forward endeavor of being consumer driven is not generic cliché but our ethic and philosophy." Enermax offers a 3-Year Limited Warranty on Power Supplies.

A closer look:



Like the majority of new power supplies on the market, this one meets environmentally-friendlier power standards.

Now, let's get a size measurement; 14cm(L) x 15cm(W) x 8.6cm(H). Please note that power supplies have to meet the ATX standard. This means that the height is usually the same, although the length and width can vary. This power supply has a gloss dark blue paint finish and comes with one 80mm (exhaust) fan at the back at a 90mm (intake) at the top. You may wonder why they didn't use a 120mm fan. Well, being 600 watts means having much larger capacitors than lower wattage power supplies. This limits the space inside the PSU and therefore the use of the smaller 90mm fan. The overall look is basic, nothing really fancy here like a modular design or windows.



Some PSU fan grills are mounted on the outside of the power supply and this could pose a problem with some cases. Thankfully this PSU fan grill is recessed. While is PSU doesn't have a quiet 120mm fan it's not that loud. I dislike a power supply that has loud fan(s). I should also mention that the fans take a few seconds to power down when the PSU is turned off. This is to insure the inside of the PSU is cooled off adequately.

This product has auto switching so there's no need to manually switch between 115V/230V before installation. Also, note the power cable connection, the power switch, and rheostat (fan speed control).



Also, there are ventilation holes to assist in cooling. Notice that they also have EMI shielding on the leads as they come out of the power supply.



This power supply has plenty of leads and while they are not all sleeved the main 20/24 pin Motherboard Lead is. The other leads are in two sleeved bunches. It best to have all the leads sleeved because this reduces the cable mess and increases air flow inside the case.

Leads/Adapters:
1- 24(20) pin Main Motherboard Lead
1- 4/8 (4+4) Pin ATX 12V Motherboard Lead (4 to 8 pin adapter included)
2- 6 Pin Video Card Lead (for PCI-E Video Card)
2- 4 Pin FD Lead (for Floppy drives)
6- 4 Pin Acc Lead (for HD, CD, DVD, etc)
6- SATA Power Lead
1- Fan Lead

Also note, the 4 pin leads are gold plated and have easy grip connectors which makes connecting/disconnecting components quick and easy.



Testing:

For testing this Power Supply I used the following test setup:

Motherboard: DFI UT nForce4 SLI DR Motherboard
CPU: AMD Athlon™ 64 3000+ @ 2.7GHz Processor
PSU: Enermax Noisetaker II 701AX 600W Power Supply
Video Cards: 2 x EVGA 7900 GT Video Cards
Hard Drives: 2 x WD Raptor 74GB HDDs in RAID0
Drive: Plextor PX-712A DVD±R/RW Drive
Memory: OCZ EB DDR PC-4000 2GB Memory
Sound Card: Creative Audigy 2 ZS Sound Card


Please remember that when testing this power supply it was done with the system overclocked to 2.7GHz. Also, the system was at maximum load. The results were taken with a Multimeter, not
through system software.



Conclusion:

The Noisetaker II 701AX 600W Power Supply has everything you would expect from an Enermax product. It offers quality reliable power and it's stable. These are things everyone wants from a Power Supply. More often then not people go for a cheap Power Supply solution and this is not a wise decision. A Power Supply is a vital part of any computer system, especially for today's demanding Personal Computers. This product is well suited for the gaming enthusiast to workstation servers. I would have liked to see all the leads sleeved but this is not going to impact performance and a mute issue for some. I liked most everything with this product and was also happy to see an abundance of SATA leads. Most Power Supplies, even the brand name quality ones have to few SATA leads. This one has 6 SATA leads which is excellent. Let's face it, most people are going for SATA HDDs and need a few extra leads. Overall this Power Supply offers fantastic performance at a reasonable price point.

Pros:
- Lot's of quality power
- Stable
- Active PFC
- Dual PCI-E Video Card Leads
- Officially NVIDIA SLI certified

Cons:
- Cables are not all sleeved
- No modular leads
 

 

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Copyright: Rodney Reynolds, Godem Online Inc. All rights reserved.

 

 
Friday, April 29, 2005 more info/comments