KitGuru KitGuru.net – Tech News | Hardware News | Hardware Reviews | IOS | Mobile | Gaming | Graphics Cards
As we have seen on many high quality power supplies recently, the fan of choice is a Yate Loon model. This particular one is the D14BH-12 which is rated at 12v 0.7A. This is very similar (from memory) to what I remember inside the previous HX1000W.
This power supply is unlike any design we have seen before as the printed circuit board design is very unusual. The AX1200 utilises DC-DC converters for the 3V3, 5V0 and +12 rail, this is clearly to help increase overall unit efficiency.
The images above show the heavy duty cables for the 0V return and the board in front of the 0V return cables is the DC-DC converter for the +12V Rail.
The heatsink layout is very interesting with most of them in the area of the fan above which wisely ensures that the airflow will be strong to keep things in check. The image above, bottom right is the rear end of the 5VSB circuit board.
The overall design is very clean with an unusual topology design from Flextronics.
The primary side is home to the majority of the input filtering along the back edge of the PCB right next to the exhaust area. These primary side power components are connected to heatsinks between the coils and capacitors. The unit also is supplied with a line filtered AC receptacle, which is similar to many high grade server units. These incorporate many components found in a standard AC transient filter and places them all into a single box as well as the receptacle itself.
Special mention also goes to soldering on the unit which is some of the finest we have yet to see.
The capacitors used for the PFC stage are Nichicon based rated at 420v 470uF 105C. This Corsair unit boosts efficiency by minimising the loss in the PFC stage by switching the primary power on and off when the cycle is at 0 voltage and 0 current.
The secondary stage uses a synchronous rectification DC-DC Design – it uses DC-DC VRM's for the minor rails and also for the 12V rail. The PCB is a 4 layer design which means it will deliver lower resistance. Corsair also deserve some credit for component selection as they are using highest grade Rubycon electrolytics. We also noticed several shunt resistors on the design which we assume means that Corsair could add a switch for multirail selection.
The board down the right hand side in the first image above provides the +5VSB supply as well as fan speed control. There is also a board between the +5VSB board and one of the DC-DC converter boards which handles over current and over voltage regulation (Weltrend WT7527S).
The AX1200 uses a VRM design to handle the three primary rails. A single 1587A, two K0391's and two K0394's are seen above.
Above are some transient filtering components. A MOV, four V capacitors, two coils and two X capacitors.
In case you missed it earlier, there is a double VRM for the 12V rail – on each side is a 2812 controller.
well thats pretty good then 🙂 I could buy a system for the price of that power supply, but you gets whats you pays for 🙂
Read a review of this last week and it does seem pretty much the class leading PSU on the market right now. Very good review and an even better product !
Looks basically like the perfectly power supply. I wonder will the power draw will ever stop, our electric bills will be scary in a few years if they keep growing exponentially
£250 for a PSU. dear lord ! but I guess if you want to run 3 way SLI or Crossfire X on 5970s, its the way to go. Just dont send me your electric bill :p
I think KitGuru needs to hold a competition for this ! what a product from corsair.
The efficiency ratings are ridiculous, I didnt even think a reading over 90% at full load was possible.
Way out of my price range, I thought the Thermaltake reviewed a while ago for £100 was expensive enough. Then again im not running Sli x3 or something insane like most of the people here.
I have a preorder in for one 🙂 wish me luck getting it, whenever
I agree, it pretty much is a modern day electronics work of art, nice conclusion text
Corsair I think have just kicked PCpower in the teeth with this one. Wonder if there is a response from any other company. I would find this hard to beat, or even equal.
This is a master showcase actually of how advanced flextronics are. I remember when this partnership was announced and people though Corsair were off their heads working with these relatively ‘ new guys’ on the scene. Oh how they have proved everyone wrong. amazing results, and I read the johhnyguru review last week, seems to be a no lose product, well apart from your wallter, being emptier
As I said on the forums, this is a showcase of just what is possible from a company so clued into the market that they can produce something to embarass everyone else. I doubt we need anything approaching this power for our systems, but for the 1% who need and want it, its awesome
I have been waiting for this to be released. come on corsair get it out the door !
I have had a 650W corsair PSU now for 2 years and its been flawless. I would highly recommend corsair as a company and their products are fantastic. Good to see product reviews on kitguru.
Most impressive indeed. I shall order one for my next killer high end gaming system which will put all of yours to shame.
Expensive but that’s a serious product
Corsair have certainly delivered with this beast
Excellent review thanks
I’d love a new power supply but I might aim a bit lower than this!
I’d love a new power supply but I might aim a bit lower than this!
It’s not available yet 🙁
They make some great products, I would buy this when it comes out really because I have skimped on power supplies for years and I have to replace them yearly, it’s a false economy
Corsair Professional Series Gold AX1200 Power supply – 1200 Watt
GOTO:
http://www.amazon.com/exec/obidos/ASIN/B003PJ6QVU/2012-2013-20
Just to start, the standby efficiency was outstanding, being one of the best performers in this highest-end clas .