Whats the deal with 3.3V regulators?
If you have an Alchemy (6360, 5400/6400) board, you’ll need to add a 3.3V supply line in the wiring harness as shown on the Takky wiring diagrams page. If you have a Gazelle (5500/6500) board, you might be able to get away with leaving it out. If you have problems booting, however, you should add it and see if the problems go away. If you’re running a G3/G4 upgrade, have the RAM maxed out, or have any PCI cards installed, you’ll almost certainly need the regulator. If you have one of the “Road Apple” x200/x300 boards, you don’t need the 3.3V supply at all.