This temperature is already very, very high, horribly high. Turn down the frequency quickly Otherwise, it will burn your CPU, and the temperature of the CPU is as high as 60 degrees. The temperature of CPU like you is even more terrible in summer, and it will definitely crash. Failures such as restarting for no reason. The machine must not play. So your machine is normal and there is no problem. Please feel free to use.

AUX, interpreted as auxiliary/additional interface, has this thing on the sound card, which means that you can connect other audio input/output devices through this interface, no matter what type (of course, interface impedance is still necessary). On the motherboard, it also means that another probe can be connected to measure the temperature, and the temperature is where the probe is placed. Generally, the CPU and system temperature on the motherboard must be there. If the software detects other temperatures, it will use AUX instead, but in fact, there may be no real probe for this temperature, or it may be to measure the temperature of the North Bridge or PWM, or the temperature inside the chassis (probably), or the temperature provided by an external probe.