is there some associated repair guide (like for one that won't power up), or only this Disassembly Guide? (if only the latter, then why bother?). While not worth repairing for any cost savings (they can be had for $15 second hand), they would be good devices for practicing repair skills like diagnosing and replacing board components, with little risk.

Updated to reflect same procedure for all models in range

The rear fan cable on the 2006 EMC 2113 is at the bottom of the system board, inside of the RAM cage

This section of the guide does not apply to the 2006 A1186 (EMC 2113) MacPro 1,1. In this model (that I'm trying to disassemble in front of me, now), the heat sink cover is partly under the RAM cage, so it cannot come out before the RAM cage. The linked guide above seems to reference this fact.

Is there a way to submit an alternative version of this section for the models in question?