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Cooler Master MasterWatt Maker 1200 MIJ PSU Review

Cross-Load Tests & Infrared Images

Our cross-load tests are described in detail here.

To generate the following charts, we set our loaders to auto mode through our custom-made software before trying more than 25,000 possible load combinations with the +12V, 5V and 3.3V rails. The load regulation deviations in each of the charts below were calculated by taking the nominal values of the rails (12V, 5V and 3.3V) as point zero. The ambient temperature was between at 30°C (86°F) to 32°C (89.6°F).

Load Regulation Charts

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Efficiency Chart

Efficiency is very high for much of the MasterWatt Maker 1200 MIJ's operational range. However, we didn't see a reading over 94%, which we'd expect from an 80 PLUS Titanium unit.

Fan Speed

Ripple Charts

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Infrared Images

Toward the end of the cross-load tests, we took some photos of the PSU with our modified FLIR E4 camera that delivers 320x240 IR resolution (76,800 pixels).

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We recorded low temperatures inside of the MasterWatt Maker 1200 MIJ thanks to its high efficiency. On the other hand, the power cord gets quite hot, reaching 62°C.


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  • Dark Lord of Tech
    Can you say not worth it ? Not even close.
    Reply
  • SoFlaWill
    Quit reading at the price tag. Can I have some of what you're on?
    Reply
  • dstarr3
    A THOUSAND DOLLARS?! What on Earth would a desktop PSU have to do to be worth $1,000? Clearly nothing that this PSU in particular is doing.
    Reply
  • dstarr3
    Like, seriously, you could build an entire gaming PC with a different 10-year-warranty PSU for the cost of this one PSU. Simply MUST be targeting the more-money-than-sense crowd here.
    Reply
  • jcwbnimble
    What was CM thinking with this product? Are there really people out there that would drop $1K on a power supply that was inferior to units that cost half as much? This sounds like a product that CM agreed to just to get Murata in bed with them for future projects.

    Murata to CM "Sure we'll start making products for you, just agree to buy our first effort regardless of price point, quality, and technological compromises".

    I'm now waiting for the CM case made by Gucci that uses external laptop power supplies, has room for only one 7mm SSD, and can't even accommodate a 7" GPU. I'd pay $1k for it as long as everyone knows it's made by Gucci.
    Reply
  • jcwbnimble
    Oh, and I forgot to mention that it comes with ribbon cables. How did CM "spare no expense" when it includes basic black ribbon cables? Come on guys, you should have blasted this PSU the second you opened the box and saw ribbon cables on a $1000 power supply.

    AND this thing is huge. Seriously CM?!!! The PSU on my original IBM PC/AT wasn't this large, and that had capacitors the size of D batteries in it.

    Total fail by Murata and even bigger fail by CM for putting their name on it.
    Reply
  • dstarr3
    lol Someone in the comments is actually trying to defend this product with downvotes. I'm sorry, but at this pricepoint, this product is indefensible.
    Reply
  • drwho1
    Like everyone is saying, NO Thank You, anyone can build an entire system for $1000 or less WITH a powerful/trusted PSU included.
    Reply
  • InvalidError
    19609320 said:
    Oh, and I forgot to mention that it comes with ribbon cables. How did CM "spare no expense" when it includes basic black ribbon cables?
    What is the problem with "basic black ribbon cables"? Personally, those are my favorite. I much prefer that over individual loose wires and braiding that snags on every somewhat sharp corner, screw and anything else that might stick out a bit.

    @Arris: the "some other way" to rectify AC without a bridge is bridge-less APFC where the boost diodes and the APFC FETs effectively replace the input bridge.
    Reply
  • TheFuzzz
    the box and packaging are nice. $1,000.... It should have a lifetime warranty
    Reply