Review: Lenovo's ThinkPad X1 Extreme Gen 4 is a powerful laptop with heat problems | Ars Technica
Review: Lenovo's ThinkPad X1 Extreme Gen 4 is a powerful laptop with heat problems | Ars Technica
Lenovo ThinkPad X1 Extreme Gen 4 Review: A Powerful Refresh - Page 3 | HotHardware
Lenovo X1 Extreme, Gen 3 (2020 top) stronger cooling system. Gen 2 (mid) and Gen 1 (bot) for comparison. Still no AMD Ryzen 9 4900HS option :( Source: YT Andrew Marc David : r/thinkpad
Lenovo ThinkPad X1 Extreme Fan Replacement - iFixit Repair Guide