I also own an Asus GX10 and have experienced a similar issue before. First, please use the tool at the link below to check your current status:
Under normal operating conditions, high-load tasks—such as extended inference or training—should result in very hot air being exhausted from the rear. The exhaust should feel intense enough that you wouldn’t want to keep your hand near it for long. Additionally, you should notice a significant and clearly audible increase in fan noise.