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
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T420 CPU Upgrade : r/thinkpad
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_thinkpad-t420-cpu-temperatures-after-i5-to-i7-cpu-swap.jpg "thinkpad t420 processor upgrade Videos - HiFiMov.cc")
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![2012 14″ Lenovo ThinkPad T420 [2nd,2C,M] + GTX 970 @ 4Gbps-EC2 (EXP GDC 8.x) + Win10 [MerahPutih] | External GPU Builds](https://i.ibb.co/9V97vnM/IMG-20190625-0929214.jpg "2012 14″ Lenovo ThinkPad T420 [2nd,2C,M] + GTX 970 @ 4Gbps-EC2 (EXP GDC 8.x) + Win10 [MerahPutih] | External GPU Builds")
2012 14″ Lenovo ThinkPad T420 [2nd,2C,M] + GTX 970 @ 4Gbps-EC2 (EXP GDC 8.x) + Win10 [MerahPutih] | External GPU Builds
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