A500 GVP HD Crash

[doctorq]

First off, you don't have to look in the startup-sequence, I think the poster means the "Expansion board diagnostic..." in the "Early startup control" menu. Startup-Sequence is a text file with commands executed when booting, and that obviously needs to harddrive to be present in order for one to look in it.

Which GVP controller is it? If it's a GP HD8+ like mine, have you set it to "Game switch" or "Auto boot"? It has to be at "Auto boot" in order to boot from the harddrive, otherwise you disable the SCSI controller. Switch over when you have powered off the computer and drive, power up again and see if it makes a difference.

[doctorq]

Well, the controller and ram is fine it seems, so maybe you should check the cable inside.

If you boot from your WB disk, do you see 8 MB of fast ram??

[doctorq]

Yes, the SCSI cable, but it might be a good idea as well to check the cable to the switch.

However, sounds more like the drive is acting up, so you would be best off checking the harddrive as Zac67 suggests. I would start with the partition software to see if the drive can actually be found by the system.