G3 MiniTower, Won't boot from any devices.

Hello, i recently got a lot of 8 PowerPC Mac. One of these is a PowerMac G3 Minitower but it refuse to boot. i successfully booted it from a System 8.5 floppy but now when i try to boot from the floppy i get a Happy Mac but the floppy is ejected 2 second after. i have almost all the Mac OS CD and i tested all of them on my others mac and they qork great. when i try a Mac OS 8.5 CD (with and without the C Key Down), the cd is ejected 2 second after the happy mac, My Mac OS 9.1 CD, OS X 10.2 CD and my Mac OS 9.2 CD won't boot at all (i get the Floppy with a Question Mark), I Have installed a Core System Software for all Macintosh on a SCSI External Hard Disk with my B&W G3 but i still get the Floppy with a Question Mark (i also pressed CMD-OPT-SHIFT-DELETE for external boot), i have installed a Core Mac OS 8.5 System for All Macintosh on a Internal Hard Disk and i installed it in the G3 but i still get the Floppy with a Question Mark. i don't know what to do. With my Mac OS 8.5 cd, i got 1 time to the Mac OS Logo but right after i got a blinking White box on the top of it.
What i can do?
Thank You
Thomas Brousseau

>"the Happy Mac Face..."The Happy Mac SE is smiling because it found valid Boot Blocks on a drive, and will now try to boot from that drive. If the CD is no longer in the drive, it is booting from the Hard Drive you installed. Either the Hard Disk Driver or parts of the System installed on that Hard Drive are bad, or the SCSI termination is not right. You should not set the Hard drive to ID=3 (only the low two ADDR jumpers installed) as that is the address used for the "C"-key device, such as a SCSI CD Drive.
You can sometimes bypass the default drive by holding down Command Option Shift Delete at startup. But it makes more sense for debugging to just disconnect the power connector to the Hard Drive until you can boot from a CD.
If you have a good battery, and press the tiny CUDA Reset button, the parameters should be set to values that will allow it to boot from a CD. They will also be set to defaults when you hold down 4 keys: Command Option P R for 4 chimes at startup.

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Message was edited by: spudnuty

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So you're saying essentially that this new machine, when it came out of the Apple factory, had OS 10.5.x installed on it, and because that was the original install, it won't recognize something that has OS 10.5.0, even if that install is on a fresh HD? Basically the hardware inside the tower can't/won't recognize any OS prior to the original 10.5.x factory install?
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