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Motherboard is undefined on CPU-Z. Fans cannot be detected by any program (SpeedFan, Lenovo diagnostic tool), CPU temps are high (59-70°C) on idle with a laptop cooler turned on. Laptop's inside fans
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Lenovo-Yoga-510-14IKB-Fan-not-available - English Community - LENOVO COMMUNITY
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Lenovo Diagnostics v4.30 – User Guide
fan-not-found-on-this-device - English Community - LENOVO COMMUNITY