How much ram is installed on the card?
The BPPC needs at least 4MB to even run.
However
I have a similar problem with my BPPC.
It is a 603e+ 040 200(210)/25
I have 64 MB of ram installed
When i power on the computer it goes black, and i need to power off and back on again for 3 - MANY times but normally 5 times. Then the A1200 boots up and works quite nicely. except though, i cannot get the BVision functioning. I am going to change the cpu to a 060 and hopefully it will make some difference. at least i will get a faster cpu...
To your problem:
No one (i have spoken to) have any clue to why that happends or how to fix it.
But, have you done the
timing fix?
It may provide some stability when the computer finally boots up...
EDIT:
Oh, and put PSU power to the floppy power connector. If you have not done so...