Lenovo 01HW699 ThinkPad T480s Heatsink Cooling Fan

The Lenovo 01HW699 is a genuine Field Replaceable Unit (FRU) heatsink and cooling fan assembly designed exclusively for the ThinkPad T480s ultrabook. Over time, laptop cooling fans accumulate dust, their bearings wear down, and thermal paste between the heatsink and CPU degrades — all of which lead to higher operating temperatures, louder fan noise, and eventual performance throttling as the system tries to protect itself from heat damage. This replacement assembly addresses all of those issues at once by providing a brand-new fan motor and a fresh heatsink with clean thermal contact surfaces.

Because this is a combined heatsink-and-fan unit, you are replacing the entire thermal solution rather than just the fan blade. This ensures that the heat pipes and contact plate are also in new condition, which is important since a damaged or corroded heatsink can be just as responsible for overheating as a failing fan. Installation involves removing the bottom panel of the T480s, disconnecting the fan cable from the motherboard, unscrewing the heatsink mounting screws in the correct sequence, and reversing the process with the new assembly and fresh thermal compound on the CPU and GPU contact points. For T480s owners experiencing thermal issues, this genuine Lenovo part is the correct service replacement to restore full cooling capability.