Package and its contents
The package is not much different than we are used to seeing. It’s an average size box that is well-described and protects the product well.
Inside we can find a PSU, set of modular cables, user’s manual, a power cable, and some cable ties.
On the box is printed whole specification, product description, and all the connectors, so we know what to expect inside. Simply, the package contains everything you may need for your new PSU installation.
I like the fact that all cables are black and flat so they are easy to manage in smaller PC cases. I wish to see braided wires, but it’s still good. There were no problems with them in Abkoncore cases, which we were reviewing. I wouldn’t expect problems with products of the same brand, but we never know, so it’s still worth mentioning that all fit perfectly.
A Closer Look
The TN850W looks like a typical PSU, but some things make it somehow special. For example, the fan grill is unique. Not many PSU manufacturers have such an original design. It looks great, and there are no problems with the airflow. The PSU is really quiet, and to force the fan to spin, I had to heat up the PC case with ~500W of hardware and limit the airflow inside. Even then, the PSU was spinning only from time to time.
The PSU is designed to work at up to 93% efficiency. The Gold 80+ standard says about 93%, but in reality, we’ve seen that these units can make even more.
All electrolytic capacitors are Japanese and are rated at 105°C. The primary capacitor is rated at 85°C, which is also good. The design is similar to what we could see in some Seasonic units. It’s, of course, a good sign as Seasonic manufacturers top PSU. If we take a closer look, then we can see how precise is soldering. Everything is very clean.
The TN850W also offers multiple protection standards like OCP, OVP, UVP, OPP, SCP, and OTP. I don’t think there is anything else in the top PSU series.
The used fan is a 135mm Poweryear, which is rated at 12V, 0.38A. As I already mentioned, the fan is quiet when the PSU keeps a lower temperature. It becomes audible when the PSU runs in a clearly too hot environment. As long as there is any airflow in the PC case, then we shouldn’t hear the fan.
Performance
The test setup includes overclocked AMD Ryzen 9 3900X and overclocked Sapphire RX Vega56 Pulse. Additional components are less important. What’s important is that we were able to generate about 570W under load with this setup. Considering that barely anyone will use more than one graphics card and one CPU, this setup shows about maximum load for high-end gaming PC built with higher series components. Even though that slower, then the wattage of the test rig should be close to setup with the i9-10900K and RTX2080Ti.
Let’s take a look at test results.
Voltage regulation is perfect for the TN850W. There were no problems with stability regardless of the load, and our results are close at every stage. The PSU was not getting really hot, and the fan was audible only from time to time when the PC case was closed. When the case was closed, then the temperature inside the case was significantly higher, can count even up to 15°C difference during longer work. This was forced for the test requirements, but the TN850W had no problem with that situation.
I’m sure that the TN850W is an amazing PSU and meets the expectations of the most demanding users.
