IBM and Lenovo ThinkPad laptop enthusiasts!
I'm in love with this big guy :)
And here are the upgraded components:
I don't think I forget anything... well maybe the best upgrade: I use Arch, btw!
I have a ThinkPad slightly newer than yours. I didn't think about upgrading it until I saw your post. Now that's the route I'm more inclined to take instead of replacing it when the time will be, so thank you for your post!
Did you have any issues with brightness control after upgrading your screen? At least for my model, I heard many people complaining about being unable to adjust the brightness after changing the part.
I encourage you to look for parts that you can upgrade, sometimes it is possible to find them for very little money. And the satisfaction of doing it yourself...
In my case I have not found any problem with the brightness control, I continue to do it as usual, using the specific buttons on the keyboard.
How hot does the CPU get under load? And does it have a GPU?
Kryonaut isn't the best thermal paste for a laptop, particularly one that gets pretty warm under load. My Thinkpad P1 dried out/heat pumped out the Kryonaut in about 6 months to the point that I was getting REALLY bad performance. But this is also a machine that runs at 100c under full load. My old W540 would get well into the 90s which dries that paste out quickly.
If you ever notice any degradation I'd suggest a thicker thermal paste that's less prone to drying out/heat pump under high loads. I believe Gelid extreme is what I bought for my normal laptops. I put the PTM 7950 stuff on my P1 and I'm never looking back.
It also deserves the Coreboot bios :)
I've seen some guides... but this is beyond my abilities...
Actually even better news! T440p supports now libreboot and it has an option for internal flashing! So from now on you have only excuses left ;) lol
https://libreboot.org/docs/install/#install-via-host-cpu-internal-flashing