Power supply is the main grid for powering up PCs and its components. The power supply manufacturer are in numbers in market, and with high quality supplies, the competition has become even stronger. While the power consumption has been brought down by graphics card manufacturer, high end SLI/CFX setups would still be needed top of the line units; to ensure the continuous and max output of power to the components, high capacity power supplies are required. Meanwhile, to understand which platform has better output, OEMs matters. Well, there are several, popular OEMs being on the list for many years.
To start with, some top OEMs, such as SilverStone, Seasonic, CWT, Sunflower, Flextronics and etc., have been known as the top power supply makers in industry. So, if you’re looking to buy an enthusiastic series power supply, then you would need to consider looking at the OEM behind the particular unit and then make your final decision. Not to mention, the many years old OEM, Enermax had been in the field for very long. Enermax had a history of being Self-OEM its power supplies, but now, its power supplies have been manufactured via external OEM. It has acquired services of CWT in the past for Revolution XT II (I reviewed), which is, by far, one of the best Power supply OEM around the globe. Corsair HXi series is the quality example of CWT build. Not only having quality components but highly efficient units as well.
Enermax has been one of the quality PSU designer, using popular OEMs to deliver high efficiency units to end users. In September, 2017, Enermax has replaced its flagship Platimax line-up with Platimax D.F. series. The OEM for sample power supply is Channel well Technology (CWT).
So, on my request of review sample of Enermax Platimax D.F 750W, but in generosity, Enermax sent Platimax D.F. 1050W unit instead. Well, it surely is a high end unit, as I haven’t had any experience in testing such high capacity units, but now, when the unit is in the house, I am readying it to put on test.
The Platimax D.F 1050W power supply has a platinum certification, delivers up to 93% efficiency on 50% load. It utilizes a fully modular power supply with the dimension of 150(w) x 86(H) x 160(D) mm, and fits in any standard gaming case. The 1050W unit not only capable of powering up the high end SLI setup but keep the noise environment much quieter by staying fanless at mid load. Having multi rail +12V rail configuration, it protects system from being overloaded and failures. Enermax is offering 5 years of warranty on Platimax D.F 105W PSU, which is completely a secure deal.
The Platimax D.F series comes in 4 different models, 750W, 850W, 1050W (this sample), and 1200W. All comes with almost same features.
- Meet 80 PLUS PLATINUM standard with 89-93% superb efficiency @ 20-100% load
- Dust free rotation enables the fan to blow away hot air from supply and to achieve that, D.F switch is designed.
- SLEEMAX, a stylish individual sleeved cable, made with carefully selected fabric to achieve a smooth, soft texture.
- Full modular cable design facilitates a trouble free installation and clean looks
- 100% 105C Japanese capacitors for maximum stability and durability
- A FANLESS mode before 30-40% load, once surpasses the predefined limit, fan starts to spin and pick RPM according to given load.
- Active PFC for auto adjustment in voltage and current, provides value up to 0.99.
- Multiple protection circuitry, OCP, OVP, UVP, OPP, SCP and etc. helps to protect the system in abnormal conditions.
- 24/7 @ 50C ready! An industrial grade performance at 50C ambient.
The PSU shipped in a brand new, redesigned Platimax D.F. box which is in black and little white as base color. On top, the Enermax logo and slogan, Power. Innovation. Design. right below to it, as seen on every single packaging. The Series, certification, and wattage are being placed in the middle, while icons having features advertised right at bottom along with PSU picture at right.
The bottom side is populated with feature’s advertisement. Cables and connectors and the specifications are being in the table format. The bottom side is completely filled with content and some marketing content.
The sides have nothing new. The number of features printed in a list format.
My first impression after opening the box, is the manual, a +12V rail info card and the polyethene foam for secure packaging.
The manual is pretty much detailed with single folded having many pages. Inside, I can see the cables and connectors’ information in English and other languages, too. It’s good to have a guided material in the form of picture. The card exhibits Multi-rail information on Power supply. Some important notes below to it.
Power Supply itself in a black Enermax branded bag.
Accessories comes in a small compact box, seems loaded with all the cables for module power supply. Well, there are not only cables but surprisingly, loads of extra accessories that won’t be even required with it, yet these are all yours.
At this point, I do not know how many are these, but I placed all the cables on the table to have them counted. To be more specific, I am enlisting the cables as following.
- 1x 20+4P MB (20 cm)
- 1x 4+4P CPU (70 cm)
- 1x 8P CPU (70 cm)
- 3x 2x 6+2P GPU (60/60 cm)
- 3x 4x SATA (50/65/80/95 cm)
- 1x 4x Molex (50/65/80/95 cm)
- 1x FDD (adatpter) (10 cm)
- 1x Cord cable
The add-ons includes, Zip-ties, plastic holders for psu wires in dual plastic bags, Enermax branded strips, CordGuard and Enermax logo/screws.
A Close Look – Exterior
The color scheme used is the Dark Grey, as seen in Revolution X’T II series PSU, same material as well. The specification sticker on top having power and current details.
The fan side has a grill on top of the fan with Enermax logo in middle of the grill. The grill is exhibiting grey-silver look and Enermax badge in the middle representing company’s patent.
Looking at the sides, the material texture is pretty much same as seen on Revolution X’T II series while the series name “Platimax D.F” is in white color engraved on it. And it’s very interesting to see that Enermax adopted again the plain white for text on the side panels. But, nevertheless, a good showcase.
Move on to front, the modular design is what to expect from 1050W unit, plus, the complete black ports enhanced the look for a high consumer’s grade power supply. Also, the ports are being placed right close to the fence which gives far better look than those coming out. I personally, fancy this design. It’s not only designed for better performance but the looks, on the other hand, is absolutely perfect.
About the rails, I was thinking how I would know about the which rail is what, but then it not long, Enermax has included a rail distribution card in the package which turns very helpful in locating the exact rail you would be connecting cable. Also, there are some limitations on the rail phases, like Rail 3 and 4 offers 40A which means, you cannot exceeds the limit of 40A on that rail and if you do, PC will shut down.
The back side, as usual, with holes and a brief look inside the PSU. Looking at the back side, the Power cord AC input is designed at left corner and next to it, is the Power ON and OFF button, not to mention, the CordGuard which serves the purpose of holding cable securely and protecting it from being accidentally pulled out. However, such incidents are rarely happen.
Now the new and additional feature which Enermax has been showcasing, is the D.F. Button which also added in the series; this featured button allows to maneuver the cooling fan and alter the purpose, when pressed, the fan will change the direction and blow away the hot air out of the case which, conversely, only work to cool the components.
A Close Look – Interior
Let’s have a tour inside PSU. Once I opened the Power supply, the first thing come up, is the transparent, grey 139mm cooling fan with model, ED142512M-FA, having power rating 12V and 0.25A, and consuming 3W. It is almost 140mm fan and the spinning cycle is totally dependent on amount of Load applied.
The high capacity unit is being populated with many components inside. Looking from the top, components are placed closely, but smaller empty spaces around heatsink and transformer are also there. The primary and secondary sides have add-on PCBs to assisting the components and to ensure PSU being fully operational.
To breakdown the levels, the AC input for Platimax D.F 1050W container with a couple of Y capacitor and then it trails down on main PCB. Moving towards the middle of the PCB, a couple of Nipplon Chemi-con 390V 400 uF 105C Japanese capacitor being situated near the AC input. These capacitors are Japanese Aluminum electrolytic based capacitors, renowned as the best quality and highly durable for longevity of PSU. Japanese 105C capacitors has been used in almost every units nowadays. Conversely, the Chinese capacitor are being worst ones.
A couple of heatsinks located on the primary side, the APFC converter on the edge and next to it.
On back side, The D.F switch design implementation can be seen. A couple of wires leading towards PWM PCB to operate the D.F. function.
An add-on PCB for PWM control. The PCB comprises of 4 fan connectors and two of them are already in use, while others are looking for connectors. The bottom white is DFR coming from D.F switch and connecting on PCB header right below to fan header.
Towards the middle, the main transformer is situated in the secondary side and an add-on PCB is 12V MOSFETs houses between transformer and the modular PCB. Some Chemi-con standard and Su’scon solid capacitor in the scattered area. Looking at the edge of secondary side, the DC-DC VRAM is located on an add-on PCB.
Test Bench & Results
Test system used in the power supply testing as follows:
- ASUS Maximus VI HERO
- Intel Core i7 4790K at 4.0GHz OC 4.5GHz
- Noctua NH-U14S CPU Air Cooler
- Gskill TridentX 2*8GB 2400mhz RAM
- Gigabyte Windforce 980Ti SLI OC edition
- Seagate 1TB + 2TB Hard Drive
- Kingston 120GB SSD
The first and foremost part of this testing is the Voltage readings by using digital meter. Using 230V AC input, I have taken some readings on idle power consumption of system. So in order to get an idea of idle power drawn from Wall, I kept the system in no-usage mode or Idle.
About load testing and efficiency, CPU put on torture test via prime95 and Real bench; this is phase one of my testing. Then, I overclocked the CPU, Intel Core i7 4790K @ 4.5GHz @1.25v and 980Ti in SLI mode. During all these tests, I have taken voltage values under maximum Loading conditions and after collection, I ready them to show them in charts. A couple of games used to put some load on power supply.
As for equipment and tools, due to lack of funds and sources, it’s not possible for me to obtain a high end testing instruments; those are expensive and out of reach completely. Only high profile companies can afford them. In my testing, I mostly focused on efficiency of power supply. I used Kill-A-WATT and EU Energy Meter to obtain the wattage pulled from the wall. In addition, a Thermaltake Dr. Power II is used to get the voltage readings. Let’s head over to the results.
Power Draw & Efficiency
Load Test with single Graphics Card (Single 980Ti)
So, in above tests, under single GPU configuration, the power supply was drawing about 173W on IDLE, while at 20-30% load, max power drawn was 380W at an efficiency of 89-90%. The efficiency level is pretty much optimal at such load levels.
Load test with Multiple Graphics Card (980Ti in SLI)
From consumer’s perspective, real time gaming load and power consumption has been very important, so I focused on testing this power supply under gaming loads and heaven benchmarks. The ideal load on power supply is 50% because efficiency peaks out at mid loads. So after test being over, the instrument showed 640W pulled from the wall as the total system power consumption which is almost doubling the previous test. This wattage is about 50-60% load, which marking the power efficiency at around 92-93% as the peak point.
Conversely, the power efficiency would rather fall a bit when more load % would applied on it.
Stability Testing of Power Supply
During the wattage test, I also made sure to check the voltages under idle and full LOAD; this helps to understand the power supply’s tolerance level and stability factor. Basically, under the ATX specification, the PSU voltage fluctuation should be 5%, anything exceeds would be alarming for Power supply functionality; on +12v rail the max acceptance level should remain between 11.4-12.6 Volts. Anything below from the minimum limit would sign the PSU being problematic.
So, looking at the chart above, the voltages are pretty stable at idle, and even on loads most of them are very stable. However, the max drop observed around 12.0v on +12V, which looks very stable. Overall the stability level is good.
Noise and Fan speed
In power supply, fan noise is not always significant and decisive factor, but many folks looks for a silent components, to say the least. So in this regard, Enermax’s latest Platimax D.F series induction surely has some improvement over predecessors.
I have been testing it for several days and what I have noticed is the fan, specifically under 40% load, halted all the time. Which means, if you’re running your system under such loads, the fan won’t spin at all; this positively effect on the silent pc environment. At least, you won’t have any noise inclusion from the power supply area. This high end power supply being fanless till 40% load is incredible, but when moving towards loads being reached 50%, the fan only started to spin then and With low RPM, the noise addition to the overall environment was extremely low; in my experience, it was almost inaudible. It could break the silence on 100% load, which are mostly extreme and worst conditions.
The fact is, the power supplies in competition also have the same features, and Enermax has now enrolled itself in the same category is, undoubtedly, a wonderful development.
Enermax has been well-known as the quality Power supply designer. Having a long history of manufacturing and designing low to high end PSUs, it has been competing with other quality brands like corsair, Silverstone, cooler master and etc. for many years now. With the recent new launch of Platimax D.F. 1050W, the old flagship Platimax has been replaced. The PSU advertised to perform better than previous badge and with new features and design, it gives better value for money.
The samples unit is 1050W discerned in platinum efficiency which output at 89-93% between 20-100% load. The load testing with multiple GPUs, allowed the load to push to 50% and according the figures, the whole system’s power draw is 640W pull from the wall, measured via Digital Meter. Having taken readings into account, the obtained efficiency is 92%-93%, which, indeed, is a good one for the platinum series PSU. Also, the fact, this efficiency range is, in no doubt, expected as most supplies delivers at such loads. Therefore, as far as the efficiency is concern, the power supply has delivered greatly.
On the other hand, the voltage regulations has been stabled, too. The most readings on voltages have been very constant and closer; the maximum voltage reading was 12.18v, while it stayed closer to 12.01v on +12V which is very good. Overall, the performance result under above testing procedure has been very satisfying.
Features & Design
Well, there are lot to discuss, but in this very short time, I’ll highlight the major features. The platinum is one that of course the top mentions and with platinum certification you’ll have an incredible 93% efficiency on power draw. Enermax aspiration towards low noise being very effective. With fanless under 40% and ultra-low at mid loads, is exceptional. The D.F. feature, on the other hand, lets you control the fan, having D.F. switch is an add-on feature in Power supply; it simply allows fan to redirect the flow to blow away the hot has been jammed in the case. But it may or may not be very useful.
Platimax D.F. 1050W is a fully modular design which is of today’s standard as well. Favorable and effective, especially to the folks, who are annoyed with the cable management and looking to get a complete modular design PSU. Along with that, Sleemax is the latest induction to sleeving style in Enermax power supply. The black and white shade individually sleeved cables let you have a something different out of the competition. It’s no wonder that every company’s looking to bring some change, so has done the Enermax. With that being said, it might not be favorable for all, as it would be a great mess if you leave them untie or unclipped. Which is why most companies consider flat cables. But, nevertheless, this Sleemax style is a great induction.
Price & Availability:
With Platinum efficiency certification, ultra-low noise and a couple of new features, this power supply is retailing at $239 US Dollar in 5 years official warranty on Amazon. With so much to offer in one unit, it deserve this price. However, looking at the competitors, there are some high quality supplies which have good offerings with better stability and tolerance level, not the mention the built-in Digital meter in a bit lower price therefore, a slight take down in the price would be a much better deal.
I personally impressed with the Design work, features and performance level. Therefore, awarding Editor’s Choice Award, also, the Features Award.