which framebuffers for sparcstation 1+

Hi,

Anyone know which framebuffers will work with a 
SPARCStation 1+. I have a cg3 which works fine,
but wondered if any of the later cards will work.

I'd like to get something where I can output the
display to a regular monitor. I did try a 
TurboGX (chip is labelled TurboXGX) 501-2325
but the SPARCstation wouldn't even boot with this
card.

Unfortunately my new monitor wont sync to 1152x900
I'd need something a little more conventional.

Thanks

Ian.