You have the motherboard in your hand. If you are doing a for maintenance, stop here and clean.
The Lenovo ThinkPad T430s is a testament to an era when laptops were built to be maintained by their owners rather than discarded at the first sign of trouble. While modern ultra-thin notebooks often sacrifice repairability for aesthetics, the T430s—released in June 2012—strikes a balance between a slim profile and a modular design that allows for deep mechanical intervention. Disassembling this machine is not just a technical necessity for repairs like cleaning a fan or replacing a motherboard; it is a ritual that highlights the durable, carbon-fiber engineering and the "Hardware Maintenance" philosophy that defined the T-series. The Philosophy of Modular Engineering t430s disassembly
: To safely release plastic clips without scratching the chassis. You have the motherboard in your hand