A1200 wont boot with Delfina connected

[HardStep]

Hi,
i was trying to connect a new Delfina Flipper to A1200 but still no luck getting the machine to boot after cable is connected.
With Blizzard1260 i can see the rainbow colors on the screen and nothing happens, after couple of seconds the colors appear again (and again).
With Blizzard disconnected, Miggy boots up the workbench screen, but freezes before refreshes the bacdrop image.
Any ideas how to get around it?





 

[HardStep]

Have 300W PSU, and cable should be connected properly (checked many times, remember reading about toasted Delfinas and cables).

[HardStep]

So far the story. Removed those 2 capacitors from the backside of Delfina and machine booted u without a problem.
AHI sound test was kinda choppy, but with Quake thru AHI the sound was perfect.
Next boot was'nt successful. And many after that. So i went on and used DelfInit to initialize the card and it worked.
Next step was trying to get Delfina DSP to play mp3-s without CPU. DelfinaMPEG, AMPlifier and AmigaAMP all were clipping like hell.  So i tried different versions of delfina.library.
With most of them i was unable to boot up the machine.
But no luck with hardware mp3 decoding.
And Paula plays mp3s without any problem with AmigaAMP.
After long hours of experimenting i'm unable to get Quake running, freezes before entering the main menu.
So i gave up for this night.
Forgot to mention, i'm using latest AHI. (6.0?).
Tomorrow i'm going to give it a try with some older AHI version.