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Corsair Builder Series Modular CX600M PSU Review


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Corsair are using the excellent Yate Loon D12SM-12 sleeve bearing fan (120mm) which we have seen in some other supplies in the last year. This is a fan rated to a maximum speed of 1,650 rpm, producing 70.5CFM airflow at 33dBa.
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The CX600M is a CWT design, however Corsair are using a non standard PCB layout and have incorporated a different PFC/PWM controller IC that gives them better standby efficiency. Due to this, the CXM therefore passes ErP 2013 certification. There are several rows of heatsinks to ensure heat is adequately dispersed outside the chassis.

Corsair source higher quality transformers that are both higher efficiency and higher capacity. They also use Japanese capacitors, rather than Taiwanese. The CW600M adopts four FET's for +12v regulation as opposed to just two in the base platform. This provides lower temperatures, longer life, better efficiency at higher loads and more stable voltage regulation.
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The transient filtering stage comprises of a single X capacitor, two Y capacitors, an MOV and two ferrite coils. This power supply uses a push pull topology with two Mosfets and two diodes. This is a well proven design which is generally reliable however not ideal to achieve very high levels of efficiency. As this is a 80 Plus Bronze Certified unit however, it should be perfectly fine.

As you can see in the pictures, Corsair are using a high grade 85c Panasonic capacitor rated 270uF at 400W. On the secondary side there is a single coil for both +5V and +12V. The +3.3V is generated from the 5V coil. Secondary capacitors are rated 105c. Output filter capacitors are supplied by CapXon.

The unit has OVP, UVP and OCP protection handled by a PS229.
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The hardwired cable is sleeved inside the chassis and tied down, to ensure protection from long term fraying against the naked metal chassis.

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7 comments

  1. What a price. looks great.

  2. I have one of the non modular ones and its been great now for 18 months, never a problem. im using a HD7950.

  3. Cant buy one here. out of stock. must be a big seller. I have had a thermaltake PSU for years now but its been a disaster for me due to the fan failing and the replacement blowing up !

  4. I was going to order one of these last week and couldn’t find any reviews. thanks! ordering it now.

  5. been wondering about this one for a while now. good info. still trying to get one of their TX650 units, they are £75 now. which is a great deal.

  6. I bought one too a CX600 non modular about 4-5 weeks ago, It really surprised me for a non modular design the cables were nice and long and went nicely behind my motherboard, I was able to place them out of the way of my fan’s airflow. I replace a Rocketfish RF500WPS2 with this unit, And I notice a big difference in performance, My GPU now gets the correct amps and voltage. Also I like 3 year warranty, And Corsair is the best when it comes to warranty, If one of their products causes your hardware to fail.They will replace your hardware or give you the cash to get new hardware.

    These are nice units but try to get the newest model, The older versions are solid units, But some did have issues, The latest version does not have those issues, The newest version will say CX Series instead of CX Builder Series, So look for that.

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