GURU Boot issue when power cycling

[paul1981]

Hmm.  I didn't really consider that it could be a PSU problem.  It SEEMS to be working well enough.  I don't have another to test with, but I might pop it open and see if there are any obvious issues.

It's 24 years old this year. The caps have to be your first diagnostic test. There's a very good chance it will fix your problem. Amigakit can re-cap your board if you can't find anyone else willing.

[paul1981]

Could it be a cracked choke or something where the power connector comes in? Just wondering as you say it works correctly from warm reset everytime.

Good luck with the PSU once it comes. Ideally that should have been the first thing to try.
Sorry the caps didn't fix your machine. I have an A600 in need too now.

[paul1981]

Thanks guys, very helpful and thoughtful posts and I do appreciate it.

I seem to have much better luck if I wait longer to switch the power on/off.  If I wait about 5 seconds, it seems to have the fail rate I mentioned in the first post.   If I wait a full 30 seconds, it seems to boot properly.  

I would think that 5 seconds is enough time to clear memory and "start over", but maybe not?   I haven't switched it on/off enough to make a decisive claim that this fixes the problem, but I have yet to see it fail if I wait 30 seconds to turn it back on and I think I've done it about 15-20 times now.

How long do you guys wait between power-cycling your Amigas?

-Ted

5 seconds ought to be fine.

[paul1981]

Is that with the original Commodore/Amiga Technologies PSU?