Differences between the two types of structure frames?

[alkemyst]

I have been trying to learn more just for fun. What is the difference between the two types of structure frames in the 14.1 and 15" T60s?

41V9987/41V9988 and 42R9911/42R9912, I see they take different LCD hinges and keyboard bezels as well as fans in both 950GMA and discrete variations.

What were the differences and why?

[richk]

THe frame on the 15" machine is about 3/4" wider. The 14.1" screen has smaller hinges than the 15" one, due to the lighter weight of the screen and the way the wireless antenna wires are routed. I don't have a 15" machine open right now to see about the fan. I have one that I need to work on tomorrow or Wednesday, but I never noticed that the fans were different

[alkemyst]

There are two different types of structure frames for both the 14.1 and 15" machines.

That's where I am confused. The higher partnumbers call for the newer (c2d type) fans, but AFAIK those fans are physically interchangable.

I was hoping the new motherboard/lower half I purchased would have the other style so I could compare.