The cooling system is decent enough for this form factor, but could suffer from inadequate thermal interface conductivity. So if you plan to use a full 120W power limit, switching to PTM7950 or similar products is highly recommended. You'll need a 30x30 mm piece of 0.2-0.25 mm thickness.
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Here's what you could expect from a correctly working system with PTM7950 (ambient temp +25°C):
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Here's what you could expect from a correctly working system with PTM7950 (ambient temp +25°C, bios version 1.05):