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Inside the ASUS ROG Thor 850W Power Supply we find a Power Logic 135mm fan (Model: PLA13525B12M). This is a double ball bearing unit.
Below - a High Resolution Gallery of the internal layout of the Power supply.
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The ROG Thor units are based on the Seasonic Prime Ultra Platinum platform and are built to very high standards, as we would expect from Seasonic. The OLED screen is a modification by ASUS which showcases the current power draw. The information delivered to the screen is processed by a micro controller.
The new platform also allows for addressable RGB lighting which can be controlled by a compatible motherboard. Other changes include supersized heatsinks and the aforementioned double ball bearing fan. These new heatsinks mean that ASUS can lower fan speeds, which lowers overall noise. Always welcomed and we delve in this shortly.
All of the heavy power transfers to the parts of the board are delivered through the PCB and not through wires. Only the fans circuit uses some wires.
Most of the filtering for this power supply is handled by polymer capacitors with a few electrolytic caps providing the necessary capacity in the secondary side … to deal with quick transient load changes.
The first part of the transient filter is at the AC receptacle as expected and it includes two Y caps and two X caps. It continues to the main PCB with two Y caps and a single X cap. A MOV is responsible for the protection against surges via the mains grid. The primary Japanese Capacitor is rated 105C – 820uf 400V. Bulk capacitors are Hitachi.
Soldering quality is high, as we would expect from the platform.
