I believe the way ThinkPad HMMs(Hardware Maintenance Manual - I'm sure it's an intended pun) works is you start from the first page until you hit the problemati

I believe the way ThinkPad HMMs(Hardware Maintenance Manual - I'm sure it's an intended pun) works is you start from the first page until you hit the problematic part, and it ends with the CPU or "system planar" and all the parts around it. It's a carried over culture from IBM probably.