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Enermax Platimax 850w Power Supply Review (EPM850EWT)

We were very impressed when we reviewed the Enermax Platimax 1200W power supply in October last year and we had high hopes that the 850W would be just as impressive.

We haven’t been disappointed. Enermax have created an improved, updated power supply based around the MaxRevo range of yesteryear.

I really do love the finish of these power supplies, they not only look great, but they are resistant to fingerprints and don’t mark easily. I tested this by running the tip of a screwdriver lightly down the side of the chassis. It didn’t leave a mark. Enermax put their faith in these products, by offering a full 5 year warranty.

Internally, the build quality is just as impressive as the outward appearance. The quality of soldering and selection of components is first class. They are using 105c rated Rubycon, Matsushita and Nippon Chemi-con capacitors throughout the Platimax range.

On a technical level, there are no concerns to be raised. Load regulation is solid and the design held well when placed under an intensive cross load situation. Efficiency is class leading, peaking at almost 94 percent at around 50 percent load. Importantly Enermax haven’t forgotten that noise is a concern and they are using their flagship 14 cm Twister fans to keep the temperatures down while producing low levels of noise.

UK availability is limited to a few online stores, such as SCAN. It is a hugely expensive unit priced at £207.53 inc vat, which surely places it out of reach for all but the wealthy enthusiast user. Even then I think those people might spend the extra £65 for the 1200W version.

We could score it down a little due to the asking price, but technically it is as good a unit as we have seen. That alone means it will appeal to the wealthy enthusiast user who is unwilling to make any compromises. The rest of us need look elsewhere.


  • looks beautiful.
  • built to last.
  • quality modular cabling.
  • could deliver almost 1000W in our tests.
  • extremely efficient.


  • not completely modular.
  • If you are spending more than £200 on a power supply, why not opt for the 1200W version?

Kitguru says: Another class leading power supply from Enermax, just be prepared to pay for it.

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Rating: 9.0.

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