Nubus video card stops IIvx from booting

[pcamen]

Working on resurrecting a IIvx.  It came with a (surprise!) Daystar Turbo040 x 40 MHz and booted just fine, with a slight whine to the hard drive.  I've since cloned the HD to a scsi2sd device (very old v3 hardware) and it now boots off of that. 

At one point it appears to have had a video card and network card installed, but those were pulled by the previous owner.  In trying to get something better than 640x480 video, I installed a Nubus video card.  Once I did, the Mac would no longer boot.  It gets the chime, and the grew screen with a mouse, and sometimes the Welcome screen, but won't fully boot.  Pull the card, it boots just fine. 

I've tried three different video cards and they all do the same thing.  I am running under 7.6.1, if it matters. 

What am I missing here?  I assumed that I might need a driver to get the video card to operate properly, or at all, but I didn't imagine that just having a card in a Nubus slot would prevent booting.

Any ideas?

 

[AlpineRaven]

I do recall some cards you need drivers for some specific cards.. what card is it?
Cheers

AP

 

[pcamen]

Radius Precision Color 8xj, Supermac Spectrum/24 III.  I forget the third. 

 

[AlpineRaven]

Another thing - has this IIvx been recpped?

That Radius works out of the box without drivers being installed so it should've been working, hence me asking if it has been recapped.

Cheers

AP

 

[pcamen]

No, it hasn't been recapped yet.  I'm going to send it to Allmacs this week for a recap.  Perhaps that will fix the problem. 

 

[AlpineRaven]

No, it hasn't been recapped yet.  I'm going to send it to Allmacs this week for a recap.  Perhaps that will fix the problem. 

That should...
Cheers

AP

 

[pcamen]

Haven't gotten the motherboard back from recapping yet, but it is an interesting one.  Allcaps says it is a IIvi board with all IIvx components. 

 

[Paralel]

Yeah, putting stress, such as another card, on a non-recapped system is a good way to bring out weird bugs. It pushes beyond the very little capacity that the system has for functional operation.

 

[pcamen]

I'm happy to say that after having the motherboard recapped, this system works good now and accepts a video card.  I've got a nice 40MHz 040 system now with decent Supermac card in it. 

 

[trag]

Great news.