It's a common truth that high wattage PSUs and low noise levels do not get along very well, so many users are forced to buy lower wattage PSUs that cannot support a powerful system with two or three hi-end VGAs. To address this, Zalman's ZM1000-HP Plus 1000 W uses heatpipes to lower the fan's RPMs and minimize noise.
Zalman, a company that is well known for its low-noise products, recently freshened up their PSU range with two new models, the ZM1000-HP Plus and the ZM850-HP Plus. Today we are testing the ZM850-HP Plus, which utilizes a dual heatpipe system to improve cooling of the internal components for reduced heat and noise levels.
PC Power & Cooling is a legendary company in the PSU market with many years of experience and plenty of innovations. Their products traditionally focus on industrial and professional power users and the Silencer 760 W that we test today is no exception. Silencer 760W is a non-modular PSU that can deliver 760 W continuously at 50°C and power two hi-end VGAs with up to 90% less noise per Watt.
Corsair's Gaming Series consists of three single rail PSUs that are made for gamers. Even more average users with a mid-range system will appreciate the reliable and cheap PSU from a company with a very good reputation. We test the 800 W model, which is the most powerful of the series and are impressed by its voltage regulation and efficiency.
OCZ recently released a new line of hi-end PSUs in order to keep up the pace with the competition, since the Z series counts many years in production. The new ZX series consists of three 80Plus Gold and fully modular PSUs that feature a single +12V rail and boast that they are designed with maximum performance in mind. The ZX 1250 will be the test subject of today’s review.
Corsair recently updated their modular enthusiast TX PSU series and presented the TX V2. With a quick look at the specifications the most noticeable difference between the old and the updated models is the efficiency upgrade, from plain 80Plus to 80Plus Bronze. Under the hood, we spotted an OEM change from CWT to Seasonic.
Club 3D is one more graphics card manufacturer that decided to follow the latest trend and present a PSU series. In this review we will evaluate their strongest model, which with its 1000 W is able to support up to three VGAs. Our only concern is that it's only 80Plus Bronze certified.
The High Current Gamer series, according to Antec, manages to combine high power and increased efficiency with low pricing. As the naming scheme reveals, HCG PSUs are intended for users that want to feed their precious PC with lots of power, but are on a tight budget.
In the last PSU review we tested the middle member of the BITWIN series. Now it’s high time for the smallest to confront our vicious load tester. Besides the BW-B430JL we will also present to you detailed information regarding the Multi Link feature, as we are going to link two BITWINs together and gather interesting data (e.g. efficiency at normal and low loads).
Jou Jye's new BITWIN Series is 80 PLUS certified and the models are specially designed for gaming and overclocking since they can work continuously at full load with ambient temperatures up to 40°C. A new and interesting feature is the multi-link connector which lets you install more than one PSU into the system and combine their power output.
Amacrox's Free Earth 88PLUS AX600-88FE PSU boasts 80 Plus Silver efficiency and its name promises that it will save Earth. With a rated capacity of 600 W it will handle all single GPU systems just fine. Thanks to its reasonable pricing, the AX600-88FE is also interesting for budget users.
The Tagan SuperRock 680W is a great power supply for budget aware users who are looking for a cost effective way to power their system. With 680W it should be good for almost everything you can throw at it. During our testing we found out that the PSU is running very quiet which makes it a good candidate for a silent media PC system, too.
IKONIK's latest power supply comes with a whopping 1200W of output power. It offers six 6+2 PCI-Express connectors, which means it is able to handle any video card configuration you can throw at it. The efficiency of over 83% also makes it a viable choice for green computing.
The Hiper Type R Mk-II 680W is a unique power supply because it comes with an integrated 8-port USB hub. A ninth USB connector is dedicated to charging any USB based devices like your Iphone or Ipod, even while the PC is turned off. The PSU itself delivers excellent performance values in stability and fan noise. Efficiency is also high with 82%.
The Hiper Type M 780W is a great all-round power supply. It offers an exceptionally stable 12V line and is sufficiently quiet to not annoy you during every day PC use. Also it supports SLI or CrossFire with a high efficiency of over 83%. With a price of around $125 it is also cheaper than similar products from bigger brand names.
Cooler Master's new Ultimate Circuit Protection power supply is among the first to receive the prestigious 80plus Silver certificate for an efficiency of above 85%. With 900W of output power this PSU can easily handle every rig that you put it into. During our testing we saw very stable voltages, especially 3.3V and 5V delivered great results.
Even though X-Spice is not a very well known brand name, they achieved what nobody else could do: building an extremely quiet power supply that is stable and affordable. We are testing the 530W model today and found that it could easily handle a Quad CrossFireX rig, and produced less fan noise under load than most other power supplies in idle.
The ES-800 from BFG is an 800W power supply that comes with everything an enthusiast might want. It has support for up to four PCI-Express power consumers and features an unorthodox internal layout. In our testing we saw an amazing efficiency of 84.9%.
Cooler Master's Real Power M850 power supply is one of the first power supplies that has six 12V rails. This should be enough power for all your SLI or CrossFire needs. Like many other PSUs today, the M850 comes with a high gloss reflective case and a large number of connectors.
Mushkin's new XP-800AP power supply offers enough power for even the most demanding rigs. The shiny black paint looks great and the connectors are numerous. One special feature is Rail Fusion which lets the user select if the whole PSU should run with one big rail or in Quad Rail mode.
Xigmatek's new NRP-HC1201 power supply offers 1200W of power with support for up to six VGA power connectors. Juice is delivered over four 12V rails with up to 36A per rail. Of course the usual features like long and fully sleeved cables and 80+ high efficiency are present as well.
Xigmatek's new NRP-MC851 power supply offers 850W of power on four 12V rails. The cable management has been optimized in a way that the most often used connectors are fixed to the unit and additional cables are optional.
Zalman's new ZM1000-HP power supply has been designed with fan noise in mind. The heatpipe experts from Zalman have stuck two of these inside their PSU and added a slow running 140 mm fan on top of that. This winning combination results in one of the quietest PSUs we ever tested, especially considering it delivers up to 1000W of power via six independant 12V rails.
Sunbeam's Mini Plant is a wolf in sheep's clothing. The PSU comes in an ATX standard sized casing but offers up to 950W of power. With most other manufacturers this means that the PSU fan will be very loud, not with the Mini Plant. Actually the fan is the quietest we ever tested in the 900W+ segment, you can almost not hear it, even under load.
The Tuniq Ensemble is Sunbeam's latest high-end PSU offering. It comes in at a whooping 1200 Watts with a large number of connectors included. For all your SLI/CrossFire needs you have two PCI-E 6-pin and two PCI-E 8-pin connectors available. Sunbeam has focused on making this a stable and efficient power supply and did a great job, the efficiency rating during our testing is well above 83%.
