Blizzard 1220 4mb

[Gazbonk]

Hi - does the Amiga boot normally without the card, if it does then try the steps below.
Switch off and remove card then reseat it back in the trapdoor slot or look here for card & jumper settings  http://www.amiga-hardware.com/   (Phase 5: Blizzard 1220/4) or maybe its bad memory on the card. The  reason I say this is because I fried the memory chips on my A500  trapdoor expansion and blew the chip that controlled the disk drive  & I had the same errors (dodgy wiring on a copy dongle).

Just try the first two options & good luck.

or this http://www.amiga.org/forums/showthread.php?t=58607 or this

http://boardreader.com/thread/A1200_yellow_screen_after_reset_1jo99X1409.html