68kMLA Classic Interface
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| Click here to select a new forum. | | ADB Mouse Prevent Boot? | Posted by: superjer2000 on 2019-03-06 19:10:25
I haven't ever seen this before -
I moved my SE/30 downstairs to do some testing on something else, plugged in a random mouse (that I had coincidentally just retrobrighted) no keyboard and flipped on the power switch. I was greeted with a flashing disk icon - my SCSI2SD wasn't booting. I took the machine apart, checked all cables inside and turned it back on - it booted up but with the mouse unplugged. I plugged back in the problematic mouse and no boot. I tried a different mouse and it booted right up. With the particular mouse, every time I turn the machine on with it plugged in (directly or through a keyboard) I get flashing question mark and the machine never boots.
Not a big deal as I have lots of mice, I just thought I'd see if anybody else had ever seen this before.
| Posted by: Johnnya101 on 2019-03-06 19:15:26
Try another mouse first. Could have a blown ADB related ic.
| Posted by: superjer2000 on 2019-03-06 19:47:18
I did - Per original post I tried a different mouse. I put a label on the "No Boot" mouse so I know not to use it again, I've just never seen an ADP peripheral prevent a hard disk from booting. (The machine still turned on and was looking for a boot device).
| Posted by: rsolberg on 2019-03-06 21:52:39
I know the state of the mouse button is polled before boot up, as holding down the mouse button during power on will eject a floppy if there's one in the drive. I tried holding down all four buttons on my Kensington TurboMouse and powering on my SE FDHD. It stayed on the grey screen with no happy Mac, no question mark, etc for over 30 seconds until I released the buttons, then I briefly saw the happy Mac icon and it booted from the hard drive. If I didn't hold any buttons, I got the happy Mac and it booted almost immediately. If I held down only one button, there was a delay of about five seconds before boot. I wonder if your mouse button is stuck in after retrobriting.
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