Originally Posted by Maverick123w
I've worked on pcs for the last 6 years and 90% of the laptops I've ever torn apart have all had integrated gfx cards. Past the ram, hdd, and disc drive, you won't be changing many of the internals on any laptop. Possibly a bad inverter or LCD cable every now and then but that's usually in a cheap pos Acer.
I had a dell laptop that had compatible LCD panels made from IBM, Toshiba, and some other company whose name I can't recall. During its lifespan, I upgraded its video card from the original geforce it included to some ATI card.
Dell also mailed me a motherboard to it by mistake, which I kept just in case because they never asked for it back (though I never used it because the original motherboard never failed.) The prices for the replacement motherboards weren't bad at all for a laptop (around $150ish.)
I also upgraded the video card on somebody else's Acer laptop once.