In this guide, I’ll explain how to disassemble Lenovo Yoga 900 to remove the bottom case, SSD, cooling fan, heat sink, speaker and motherboard. Refer to this guide. You can repair, upgrade and clean your Yoga 900.
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Before continuing dismantling, the first thing to do is disconnect the battery power to prevent short-circuits and other surprises can be avoided in the dismantling process, which is the necessary step before dismantling all electronic devices.
Red: TPS65982 USB Type-C power chip.
Orange: Paradetech PS8740. Makes USB Type-C supports Displayport signal transmission.
Yellow: 620FJ1LN (presumably reader control chip).
Blue: Winbond 25X40CL, Winbond BIOS chip.
On the motherboard, we did not find the motherboard chipset (Southbridge). Find relevant information, was discovered that this generation of Skylake U series low-voltage processor chipset will be integrated into the processor, which helps reduce board volume.
For more guides, check out the Lenovo Yoga 4 Pro (Yoga 900) device page.