I used an "old" 850Mhz 100FSB 370 FC with a Lin Lin adaptor. It wouldn't post without it in the original dot. I am not using any additional boards in the I.Dot except for FM/TV/Capture PCI card.
Read my post here:
I haven't played with it in a while as I have been playing with the Kiosk touch screen. I still have yet to finish it. Just another project.
I haven't tried a Celeron. I am guessing yours worked with no adapter? Have you tried something faster yet? (IE Celeron 1200/1400?)
Will check benchmark and post. (I.dots been moved to back of project room).