Color Classic starts, but no chime / not booting from internal SCSI devices

[AwkwardPotato]

If I'm reading crazyfrog's post correctly it sounds like installing the termination resistor packs on their BlueSCSI solved the gray screen problem. Might be something you want to double-check on yours...

 

[opualuan]

Recap today seemed to help my situation

 

[imactheknife]

I recapped a 475 recently. Everything was perfect I thought. Floppy didnt work, tried everything that i could think of. Removed and replaced a few caps, and boom, she works. It happens. Glad your situation is going well