Power SuppliesReviews

DeepCool PQ850M 850W 80+ Gold Modular PSU Review

Closer Look and Performance

Inside the PQ850M PSU, everything looks well. Nothing is too tight, and there is no pressure on any component. There are not many heatsinks, which suggests there wasn’t a problem with stability or overheating at the designing stage. I’m not sure who is the manufacturer of this design, but it looks somehow familiar to what I saw a while ago.

All the visible capacitors are Japanese and are rated at 100°C or more. The main capacitor is made by Nippon Chemi-Con and is rated at 400V, 680uF, and 105°C.

The interior of the PSU is clean and makes a good impression.

The soldering and overall build quality look pretty good. It’s hard to see the soldering in the photos, besides the daughter board with the cable connectors on the other side, where the soldering is exceptional. All other components are also well-soldered. Everything is clean and well-protected.

The PQ850M uses a Hong Hua HA1225H12F-Z fan, which is rated at 0.58A, and a maximum of 73.9 CFM at 2200 RPM. The expected noise level is at about 32.4 dBA. As I mentioned, if we use the fan-stop mode, then the fan starts to spin above 30% load. Considering the generated noise, even under high load, it barely reaches half of its maximum speed, which suggests that the PSU is not getting hot.

 

Performance

Tests were performed on the latest AMD platform, which contains the overclocked Ryzen 9 7950X CPU, ASUS Crosshair X670E Gene motherboard, overclocked Colorful RX4080 Advanced OC graphics card, and additional components to bump the wattage some more. The peak wattage is around 800W, while the continuous high load at about 720W.

There were no stability issues during all tests. The PQ850M gives us high efficiency, low temperature, and quiet work. All that suggests it’s an exceptional unit. At a load of over 720W, the +12V reading was nearly perfect, which is rarely seen.

The PSU was quiet and wasn’t significantly audible during all the tests. The noise was hard to separate from the ambient, so all should be satisfied. I can’t find any details about the specified maximum noise, except for the fan specifications, which is 32.4 dB at the top speed. The fan wasn’t working at its maximum speed, and the ambient noise was about 34dB, so it was hard to register it precisely. On the other hand, it proves that the PSU is very quiet, and if we have problems with the noise, then we should search for other components on our PC.

The PQ850M looks great and has exceptional efficiency, so it’s not hard to recommend it to any gamer or power user. It’s my first DeepCool PSU test, and I’m delighted with what this unit offers.

 

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