Kingwin's new Power Force PSUs arrive

Subject: Cases and Cooling | January 29, 2013 - 01:46 PM |
Tagged: PSU, Kingwin, Power Force 850W, modular psu

Kingwin's $110 Power Force 850W PSU is not as well appointed as other 850W PSUs but is also much lower in price.  With four 6/8 pin PCIe connectors and 8 SATA power connectors some users might feel a bit cramped but with 70A of power on the 12V line it seems that the unit can be useful for many. [H]ard|OCP tested the PSU to see if it is indeed worth the purchase price and were glad to see it pass all their tests, though perhaps not with flying colours.  This is the first Power Force PSU that they have seen, if Kingwin can keep the quality high and the price low they may make some inroads into recognized PSU suppliers.

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"While not a "go to" enthusiast brand, Kingwin has produced some excellent computer desktop power supplies over the last five years and these have usually be great values. Does Kingwin continue the trend with its new Power Force 850W model sporting good efficiency, modular cabling, and reasonable pricing."

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Source: [H]ard|OCP

EVGA's 1500W PSU comes with a few strings attached

Subject: Cases and Cooling | December 14, 2012 - 04:01 PM |
Tagged: modular psu, kilowatt, superNOVA NEX1500 Classified, evga

It is never a good sign when a company does not want to send their hardware to review sites for testing and the ECGA superNOVA NEX1500 Classified PSU is no exception.  [H] purchased one out of pocket to test and they what they saw did not impress them very much.  One of the less than useful features they found was on the 12V rail, or rather on the eight 12V rails, each of which is rated at 20A.  The connectors are certainly impressive, with 16 PCIe connectors, 12 SATA and a very thick power cord, which of course leads to a lot of cable clutter.  Add to that the mislabelled PCIe lines and the need to register a user to be able to download the software to try to fix that problem and you can see why [H] failed this drive.  At least it didn't burst into flames in the torture test, although it may have caused some hearing loss.

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"EVGA did not want to send us one of its 1500W PSU beasts to review, so we went out and bought the $450 behemoth so we could put it through the HardOCP PSU grinder. EVGA clearly states that NEX1500 PSU is all about "no compromises," but we suggest that compromises are exactly what you will be making; more than a few too."

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Source: [H]ard|OCP

Nine Middle Weight PSUs battle it out

Subject: Cases and Cooling | November 21, 2012 - 04:18 PM |
Tagged: PSU, modular psu, corsair, Chieftek, cooler master, zalman

The 600-700W range is very popular with enthusiasts who either have a pair of fairly powerful GPUs or a single top of the line GPU, as they don't quite need a kilowatt class PSU.  X-bit Labs put together a roundup which features 9 PSUs from Corsair, Chieftek, Cooler Master and Zalman some modular and some with permanently connected wiring.  It was the Corsair TX650 which received the Recommended Buy award though Cooler Master came close to winning as well.  Some of the other models fared poorly thanks to the lack of proper voltage regulation or in one case fan regulation.  Check out the full review here.

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"We would like to talk about nine power supply units from the most popular 600-700 W wattage range, which represent six different series of devices from four manufacturers: Chieftec, Cooler Master, Corsair and Zalman."

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Source: X-bit Labs

Seasonic's new X-1250 provides pure power satisfaction

Subject: Cases and Cooling | November 13, 2012 - 03:11 PM |
Tagged: PSU, kilowatt, seasonic, X-1250, modular psu

Seasonic's new X-1250 PSU can provide 1250W of power, just as the name suggests, with up to 104 amps to the 12V rail which should provide enough power for even the most power hungry GPUs.  Instead of going with a single rail design Seasonic chose to provide 4 rails so you should ensure to know which plugs you are using.  It passed all of [H]ard|OCP's torture tests with flying colours, making it one of the better kilowatt ckas PSUs they have had the pleasure of testing and when you consider the price, with or without the rebate, it is a perfect choice for users building a system with multiple GPUs.

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"Seasonic makes some of the best enthusiast computer power supplies in the world. It has long produced some of the cleanest power producing PSUs along with being some of the quietest on the market. The new fully modular X-1250 sports many enthusiast features and touts gold level efficiency. Is this new X-1250 worthy?"

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Source: [H]ard|OCP

The second coming of the AX1200, now with software controls

Subject: Cases and Cooling | October 24, 2012 - 05:11 PM |
Tagged: PSU, modular psu, kilowatt, Digital Power Supply, Corsair Link, corsair, ax1200i, 80 Plus Platinum

Corsair's new AX1200i PSU is 80 Plus Platinum rated and sports Link monitoring and control software as you might remember from Lee's review.  On the off chance that you would like a second opinion about the PSU, [H]ard|OCP recently published their own review.  Just like Lee they were impressed with the voltage regulation, efficiency, and DC Output quality though they were less impressed with the noise they saw during their Transient Load Test.  They also questioned the use of the Link tweaking software and while the final verdict was positive in some ways they didn't feel this PSU was as true successor to the stellar AX1200 released almost two years ago.

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"Corsair has a refresh today that talks to its high end line of high power PSUs. The AX1200i comes in touting "platinum" efficiency and "an unprecedented level of monitoring and performance customization." How does the AX1200i perform out-of-the-box and does it actually bring value at its huge price?"

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Source: [H]ard|OCP

Enermax hits 1350W and gets rated Platinum as well

Subject: Cases and Cooling | September 28, 2012 - 02:30 PM |
Tagged: PSU, modular psu, enermax, 80 Plus Platinum, kilowatt, Platimax 1350W

If the 1500W EVGA SuperNova PSU that Lee recently reviewed was a little too much for you then how about the Platimax 1350W from Enermax?  It sports six 12V rails, two at 20A and the remaining at 30A, a mere eight 6+2 pin PCIe power connectors and 14 SATA power connectors. This PSU is the highest rated 80 Plus Platinum PSU [H]ard|OCP has seen, as well as the highest from Enermax and they were not disappointed.  While it shared its design with the MaxRevo 1500W which left [H] a little disappointed, the Enermax implementation was superior and this PSU walked away with an Editor's Choice.

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"Enermax is a long standing quality desktop PSU company. It not only specifies and designs power supplies it is one of the few companies that actually build enthusiast PSUs. Enermax today moves it 1350 watt giant into "Platinum" efficiency territory with the new Platimax 1350W."

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Source: [H]ard|OCP

Need to power an EVGA Classified SR-X LGA2011 based system? Try EVGA's 1500W PSU

Subject: Cases and Cooling | September 11, 2012 - 07:12 PM |
Tagged: PSU, modular psu, kilowatt, evga, superNOVA NEX1500 Classified

EVGA's SuperNOVA NEX1500 Classified 1500W PSU is more than just a source of power that would satisfy even a certain stand up comedian turned TV star, it also features some rather interesting extras.  Some of the features bear a resemblance to those found on the Corsair AX1200i Digital ATX 1200W which Lee reviewed a short while ago, like programmable rails and software which allows monitoring and control of certain aspects of the PSU.  While the 10 year warranty is a good sign, TechPowerUp! found a few questionable results from the tests they ran.

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"EVGA's new SuperNOVA NEX1500 power supply packs a great deal of features with the most fascinating being its enormous capacity, reaching 1500 W and up to 1650 W, when overclock mode is enabled. Combined with software monitoring and control, the fully modular design and the sleeved cables this is a PSU enthusiast's dream come true."

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Source: TechPowerUp

Slay the cable kraken? Corsair's oddly advertised HX850

Subject: Cases and Cooling | August 24, 2012 - 07:44 PM |
Tagged: corsair, modular psu, HX850

We have seen a wireless streaming graphics card which reminded the crew at PC Perspective of Cthulu, but we have not yet released the Kraken.  That was up to Corsair and their HX850 PSU which [H]ard|OCP recently reviewed.  A single 12V rail is capable of delivering up to 70 amps which is a good thing on a PSU with six 6+2 PCIe power connectors but it still wasn't enough to really impress [H].  This PSU has essentially been released to refresh their current model and while it does match the performance of the previous model it does not really improve upon it.  This is what lead to [H]'s disappointment, the PSU passes the tests but has not really improved from the model Corsair was selling years ago.  Still it is a decent choice for a system builder who plans on using multiple GPUs.

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"Corsair, a brand we have come to trust when powering our enthusiast desktop PC systems, brings to us an 850 watt power supply unit that touts quiet operation, a modular configuration, and "gold" rated power efficiency. How does the new Corsair HX850 fit into Corsair's current power supply lineup?"

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Source: [H]ard|OCP

The pensive supply unit decides if it will give you power ... and tells you about it

Subject: Cases and Cooling | August 7, 2012 - 07:52 PM |
Tagged: corsair, Professional Series AX1200i, PSU, modular psu, kilowatt

The reason that Corsair's new Professional Series AX1200i is called a digital power supply is due to the presence of a digital signal processor inside the PSU.  The advantages are likely to due with the reduced complexity of the internal design than due to the DSP being a miracle, however there is more to it than just smooth voltages.  With the USB Corsair Link interface you can use the bundled software to monitor the three main voltage rails, the 24-pin connector's 12V line, the AC voltage at the wall socket and there are current trackers for all of the PCIe power connectors as well.  If you obsess over power management and happen to need more than a kilowatt of power, check out Corsair's latest offering at The Tech Report.

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"Corsair's new Professional Series AX1200i uses digital circuitry to convert AC to DC power. We take a quick look at the PSU and the software enabled by its DSP."

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XFX's pricey Platinum ProSeries PSU performs perfectly

Subject: Cases and Cooling | June 1, 2012 - 02:40 PM |
Tagged: xfx, ProSeries 1000W, modular psu, kilowatt, PSU, 80 Plus Platinum

With a half dozen modified 8-pin PCI-Express connectors, 8 Molex connectors, and 11 SATA connectors the XFX ProSeries 1000W PSU will handle the needs of a powerful system.  The interior components are very similar to the Seasonic Platinum 1000W which is one of [H]ard|OCP's favourites.  As with the Seasonic, the XFX PSU carries an 80 Plus Platinum rating which testing proved to be essentially accurate as [H] was not going to quibble about a 0.6% difference on their review model.  You have to pay a bit more for this PSU but if you want to pick up a model that won [H]'s Editor's Choice and Gold Award then this PSU is a sure bet.

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"XFX has a tremendously impressive track record here at HardOCP when it comes to enthusiast class PSUs. To date, four XFX PSU reviews, three Gold and one Silver Editor’s Choice Awards. Its new 1KW ProSeries PSU features no wires! No not like that, but rather on the inside. Let’s see if SolidLink Technology is award worthy."

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Source: [H]ard|OCP