On Thu, 2002-12-19 at 16:31, Philip Edelbrock wrote: > Humm, I don't suppose you can connect a scope to SDA and SCL to see what > is happening? It sounds like a hardware flaw. :'( Actually, this could be possible. But - SDA looks like part of the IDE interface? Can you point me to where I'm looking for this, so I can locate it on the piix4 (and then on my board)? As well, what *should* these lines show on the scope? Thanks, Joe