Not sure if this is intended or being worked on but you can put a lot of overclockers in a 32 eu/t machine without it draining power, transformer upgrades doesn't seem to have any effect.
In my experience if you put more than 1-2 overclockers the power starts draining fast as the machine needs more power, this is where you should put in transformer upgrades with a suitable cable.
My setup has a MFE direct with gold cables to these machines: macerator, furnace, compressor, etc.. without issue, transformer upgrades doesn't seem to do anything.
Using IC2EXP 397