Epilogue
The Deepcool PX850G achieves high overall performance, close to other PSUs that use the same CWT platform. In noise output, the non-restrictive fan grille, and the not aggressive fan speed profile, allow for a low enough average noise, which stays below 30 dBA, which I have set as the baseline for quiet operating PSUs. The dead silent PSUs don’t exceed 20 dBA average noise.
The Deepcool PX850G currently costs 160 dollars, which is notably higher than the Thermaltake Toughpower GF3 with similar capacity. Thermaltake’s unit achieves similar performance and has about the same average noise output, so you can easily go with TT’s offering if you don’t want to pay more money. There is also the Montech Titan Gold 850W, which is sold at a similar price and achieves the best performance, my sample at least, among all CWT CSZ platforms that I tested. Moreover, depending on the voltage input, the Montech unit’s average noise output is notably lower at 24-25 dBA.
To check all alternative PSU offerings, read my Best ATX v3.0 PSUs article before investing in a new power supply. You help me a lot by using my affiliate links, which don’t increase the product’s price. I get a commission from Amazon every time you do it, which can make a difference for me, especially now that I am on my own, working exclusively for my media and not for someone else.
- Delivered full power at 47°C
- Good performance
- ATX v3.0 and PCIe 5.0 ready
- Within 130% OCP at 12V and OPP
- Within 1% load regulation on the main rails at 115V
- Good ripple suppression
- High build quality
- Silent operation at light and moderate loads
- Highly efficient at light loads
- Longer than 17ms hold-up time
- Low vampire power
- Alternative Low Power Mode (ALPM) compatible
- Low inrush current at 115V
- Fully modular
- Enough connectors, including a 12VHPWR (600W)
- Adequate distance (150mm) between peripheral connectors
- FDB fan
- Ten-year warranty
- OCP and OPP triggering points should be lower at high temperatures
- High OCP on the minor rails
- Not-so-efficient 5VSB rail
Did you notice any coil whine with this PSU? I bought a Corsair Rm850x and it has a slight steam whistle type noise even while idle.
coil whine is super weird, it depends on your hardware configuration
Oops I meant the Rm850e.
Is coil whine generally common amongst most PSUs? I noticed that the capacitors on the Rm850e are non-japanese, could that be a contributing factor?
Thank you
in general for me, since I have lots of test systems, coil whine has to do mostly with the graphics card in use and the current use (e.g. game menu or desktop)