I picked up a G3/266 DT at a thrift store for $15. With the original hard disk (OS 9.1 and 10.1!!! in 2GB!!! :)), it boots up just fine.
I placed a larger HD in it, and tried to boot from a 10.2 CD. The grey screen with the Apple logo appears, and the animation at the bottom of the screen starts to rotate. The video then becomes garbled and the machine locks up. :o
Attempts to install 9 to other hard disks has been problematic, since sometimes the hard disk is not detected.
It has the A/V option card, 24x IDE CD-ROM, and is using the built-in video. The battery is dated 1997. The ROM is Revision A.
Any ideas why it is doing this?