Advice for trouble-shooting & booting a A4000T - Success!

[amigadave]

You need at least the 2mb of Chip RAM to be installed.  It is okay to have the other motherboard RAM removed and only use the RAM on the 060 accelerator card, but you must have the 2mb of Chip RAM installed (AFAIK).

[amigadave]

all the four ram slots are empty on my A4000T yet I had 2mbs of chipram. (when it was working 7 years ago )

I guess I am thinking of the A4000D motherboard that has a 2mb Chip RAM simm and did not realize that the A4000T motherboard did not have a Chip RAM simm slot.

I sold my A4000T last year and did not open it up much while I had it.

[amigadave]

The answer lies within your question. an Install floppy must be installed before it can be bootable.  (never remove the write protection from your original disks)

What the heck do you mean by that statement?  You mean it must be inserted inside the floppy drive, then I agree, but otherwise, I don't know what the heck you are writing about.  An Amiga Install disk is always bootable, unless it is damaged, or there is a problem with the floppy drive.

I suggest giving the floppy drive a good cleaning and checking the Install floppy disk in another Amiga to see if it boots on another Amiga machine.

[amigadave]

Yes, only my A4000T Workbench 3.1 Floppy boots this computer.  The Install floppy does not although it is fully readable, copyable, I can see all the files on it, transfer to another floppy, etc....

The drive is reading and writing it appears fine.

I formatted floppies today and made copies of all my floppies so it seems to be running well.

tj

Well, if your Install floppy disk will not boot your A4000T, it either has something wrong with it, or it is not the correct Install floppy for an A4000T.

The 3.1 Install floppy for a A4000T is different than the Install floppy for any other Amiga computer.

If you downloaded these floppy images from the Internet, you probably don't have the one you need for the A4000T.

Sorry I can't provide more help, I am half asleep and can't think straight at the moment.  Too much pasta for dinner dulls the brain.

[amigadave]

Make a copy of your bootable Workbench disk and then erase enough files on it to make room so you can copy all of the files from the Install floppy disk to it and rename it to the same name of your Install disk.  That should give you a bootable disk that has all of the Install files and allow you to do a proper install of OS3.1.

Hope this helps.