Finally upgrading coolers! Realised I have the rare delta fan T430 and I was running a 3720QM... That explains the temps : r/thinkpad
New Original for Lenovo ThinkPad T420 T420i SWG Discrete Graphics Heatsink CPU Cooler Cooling Fan 04W0408 04W0410 0A66707 - AliExpress
ThinkPad T420 CPU Upgrade (i5-2540M to i7-2670QM) - YouTube
Replacement New Cpu Cooling Fan For Lenovo Thinkpad T420 T420i Laptop Cpu Fan + Heatsink Fan 04w0408 - Laptop Cooling Pads - AliExpress
Lenovo ThinkPad T420 Review - Itechguides.com
Lenovo ThinkPad T420 Cpu upgrade i7-2670QM - YouTube
I updated my CPU, Wlan/Bluetooth and USB in my T430 : r/thinkpad
T420 CPU upgrade to i7 2860QM quad core. Paste is Thermal Grizzly Kryonaut. More info about upgrade and passive cooling upgrade in comments. : r/ thinkpad
Lenovo ThinkPad T420 T420i 04W0407 0A66706 Laptop Integrated CPU Heatsink With Cooling Fan - WIT Computers
Lenovo ThinkPad T420 Cpu upgrade i7-2670QM - YouTube
Amazon.com: Thermal Module Integrate CPU Cooling Fan & Heatsink for Thinkpad T420 T420i Compatible FRU No.: 04W0627 0B46252 : Electronics
Lenovo ThinkPad T420 Cpu upgrade i7-2670QM - YouTube
とうとう手に入れたCore i7をT420に載せてみた | Monkung Factory for ThinkPad - 楽天ブログ
This is my new-old laptop – The Blog
I updated my CPU, Wlan/Bluetooth and USB in my T430 : r/thinkpad
The story of my highly upgraded Lenovo T420 | The caffeinated engineer
T420-41786vu-and-CPU-upgrade-to-i7-2670QM-bios-update - English Community - LENOVO Comunidade