Really hope that someone can point me in the right direction here - I did have a working Amiga 1200 running OS4 with the Blizzard PPC 603e+ card with BVision attached. I'd recently added 256mb ram (two 128mb edo simms) to the card and it was working beautifully and registering all of the ram for at least 20 minutes or so, and then it just crashed and hung. I went to reset the Amiga and now it wont power up. The green light stays dim and I get a dark grey screen. If I remove the blizzard cards, the amiga turns on and goes through the dim/bright green power led stage and comes on as normal.
Have you Tried to boot without the BVision and with only one SIMM?
I'm running this setup using a really old AT power
I also think that you really should buy a new PSU..
The ppc card is a 210mhz with a 25mhz 040. Has anyone managed to get this setup running with just the standard amiga 5 pin power connector and a at/atx psu without having to run a seperate power connector going to the floppy power connector on the main board? Or is this a necessity to get enough power over to the ppc card?
I have the same setup with you. The main difference is that my PPC runs at 180mhz. I have a 350W PSU and my Amiga can boot without plugging the floppy power connector.
In fact, i don't notice anything different when it is plugged in, stability-wise etc, except from that the power LED flickers less when the PPC is working.
HOWEVER, with your setup it is recommended to feed your Amiga from both the standard PSU socket and the floppy connector. The 68040 and BVision require lot's of power!
I've got my setup inside the original a1200 case you see and would really like to have just one power lead instead of 2 as I did previously.
With this kind of setup everything is very tight inside the Amiga and ventilation is poor. It is almost necessary to cool down the Permedia2 chip of the BVision.