It just won't work, had the same thing here with a CyberstormPPC.
My A4000 the light remained dim, no matter what I tried it just wouldn't boot.
Upgraded the machine to Kick 3.1 and Buster 11, still no go. Even went as far as sending the card back to the seller but with him it worked, both in his 4000 and 1200 tower with Micronik Z3 board.
Eventually got it back and in the meantime got myself another 4000 and it worked straight away, no problems whatsoever.... Seems these cards are a little picky in which machine they run....
