When you think of the name Corsair, the first thing that comes to mind is performance memory. I mean let’s face it, the Corsair name has long been reverred by both enthusiast and overclockers alike in terms of extreme performance, reliability and stability. It is for this reason that Corsair has managed to be ahead of the competition over the years.
However, in this review we won’t be talking about their famous memory modules but rather their new product, the Corsair HX Series Power Supply. It’s not new for memory manufacturers to expand their product line and include power supplies in it. Companies like OCZ and Mushkin have already successfully integrated power supplies into their product range. Corsair is no different. They have been expanding their product line constantly the last few years (flash drives, watercooling just to name a few) and including power supplies was just a matter of time.
Today, we’ll take a closer look at Corsair’s foray into the PSU market. We’ll find out if brand Corsair can extend the same commitment on quality, reliability and performance they have given on their modules to the HX Series Power Supply. Introducing, the Corsair HX620W Power Supply unit.
From the manufacturer of the “World’s Most Awarded Memory” comes the Corsair HX Series Power Supply. With that same legendary focus on the performance and reliability, Corsair has engineered the HX Series to support even the most demanding of systems. The Corsair HX Series incorporates the most advanced technology to deliver reliable, continuous, and efficient power to all critical system components. The HX Series is the ideal power supply for high performance and gaming PCs, Audio/Video workstations, and file servers.
The HX Series comes in two flavors: the HX520W, which is the 520w version and the HX620W, the 620w version. Both versions use the latest and most advanced power supply technology currently available.
Corsair HX Series Features:
· Supports the latest ATX12V v2.2 and EPS12V 2.91 standards and is backwards compatible with ATX12V 2.01 systems.
· Guaranteed compatibility with dual-GPU configurations.
· Double forward switching circuitry design offers high efficiency, up to 80% under wide load range.
· Active Power Factor Correction with PF value=0.99 provides clean and reliable power to your system.
· Universal AC input 90~264V automatically scans and detects the correct voltage. No more hassle of flipping that tiny red switch!
· Ultra quiet 120mm double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying the RPM in response to temperature.
· Guaranteed to deliver rated specifications at 50ºC.
· Triple 12V Rails provide independent reliable power to the CPU, video card and other components with a combined rating of 50A (40A on 520W) maximum! Advanced circuitry design that automatically enables power sharing between the triple +12V rails in an event of overload on any single +12V rail.
· Powerful +5Vsb rail with 3A rating.
· Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety for your critical system components.
· 105ºC rated industrial grade capacitors provide uncompromised performance and reliability, delivering 4 times the lifespan of conventional 85ºC rated capacitors.
· Enhanced modular flexible cables enable easier cable routing and increased airflow in the system.
· Gold Plated connectors provide oxide free ultra low-resistance contact between the power supply and your critical components.
· 8 Serial ATA connectors (4 on 520W).
· Dimension: 5.9″(W) x 3.4″(H) X 5.9″(L); 150mm(W) x 86mm(H) x 150mm(L)
· MTBF: 100,000 Hours
· Safety Approvals: UL, CUL, CE, CB, FCC Class B, TÜV, CCC, C-tick.
The Corsair HX620W PSU is packaged in a sturdy black and red box. The box is laden with the customary specs and features wordings all over it. Inside you’ll find the PSU unit cushioned and safely protected by a thick semi-hard foam. The package consists of the PSU, power cord, modular cable set, mounting screws, case badge, cable ties and a user manual. All the modular cables are neatly tucked inside a black Corsair bag. Overall, an outstanding package for a PSU.
The modular design allows the user to only install cables that they will use. This prevents the nasty look created by unused cables hanging everywhere. This particular unit boasts one of the most complete set of modular cables we have seen to date. There are more than enough connectors for all your peripherals. Aside from the main sleeved ATX power connector where a +12V 4-pin cable and a +12V 8-pin EPS cable is permanently attached, you also get 10 Molex adapters equipped with unique quick release connectors, 8 SATA power connectors, 2 PCI Express cables, 2 floppy power connectors and 2 4-pin molex female power connectors exclusively for fans only. The length of all the connectors was more than adequate, enough to reach all parts of the case. You have the choice of selecting shorter or longer cables depending on your case needs.
ABIT Fatal1ty AN9 supplied by IWAY
AMD Athlon64 X2 3800+ AM2 Processor
Corsair Twin2X2048-8500C5 supplied by Corsair
Leadtek PX7600GT TDH 256MB DDR3 Dual DVI x 2 in SLI supplied by ifocus
Western Digital 74Gb Raptor 10000 rpm SATA
Western Digital 80Gb 7200rpm IDE
Comparison PSU: Thermaltake ToughPower 750W supplied by ifocus
We tested the unit by looking at the voltages given out by the different rails while the system is idle and running full load at a highly overclocked speed. Each rail has an acceptable voltage output range needed to keep the system stable. The higher and more constant it is to the desired voltage range, the better. We recorded the voltages and compared it to readings taken from another PSU as well to see if it is at the same level as most trusted and established PSU brands we know. Note that the PSU being tested is powered using a UPS to prevent wrong readings caused by voltage fluctuations or spikes.
When we fired up the system, I was very impressed on how quiet the unit is. Even with an open case, I could not hear the PSU running on top of the stock Intel CPU fan. With no other system fans or chipset fans running in the background to mask the noise, the Corsair HX620W is indeed one very quiet power supply unit.
Even at full load, the Corsair HX620W’s power output barely changed. Unlike its competition, all rails on the Corsair PSU were receiving the same power, LOAD or IDLE. Just demonstrates what sort of performance you can expect from the HX620W.
If Corsair can make great memory modules, they have now proven that they can also make great power supplies. The packaging is impressive, the design elegant, and the performance superb. Add to that the quietness of the unit, you got yourself one of the best power supplies in its class money can buy.
With the Corsair name comes quality, performance and reliability. Their memory line is proof of that and based on our experience with the HX PSU series today, it is riding on the same boat. Let’s face it, if you want only the best, you pay the premium that goes with it. By the way, while most major PSU brands offer only 2-3 year warranties on their products, the HX series from Corsair comes with an industry leading 5 year warranty. How’s that for standing behind your product.
Pricewise, the Corsair HX620W is on the expensive side when compared to other brands within its class. According to Pricegrabber, it is currently retailing at around the US$155-169 price. Not a surprise really. This PSU is not for your average system. It is not marketed for that anyway. So don’t go spending heaps of money if you don’t plan to use this on a high end system.
Saying that though, with the ever growing power requirements of today’s high end systems, we expect Corsair to up the ante by releasing more powerful versions of this series soon. Knowing their track record, once they start something, rest assured they will keep up with the competition and the market.
Overall, we highly recommend the Corsair HX620W Power Supply Unit. If you’re a gamer, an enthusiast or an overclocker, this unit will definitely fill and satisfy your needs. Even the noise conscious will find that this unit will suit their needs. Definitely, another winner from Corsair.