[geeks] attention (old) mac geeks: pds/nubus/l2 cache questions

[alex j avriette]

so i have my ancient quadra 660av here (with plans to rescue my se30 in 
the future). i've got some questions about its hardware.

first, it seems reasonably easy to overclock it to 29mhz (from 25). has 
anyone done this? a friend overclocked his IIsi and said it was fun and 
worth it.

second, i see a 128k l2 cache board available. this appears to use my 
PDS slot. I had hoped to be able to find strange nubus cards on ebay and 
play with them. is there no way to use the l2 cache and a nubus adapter? 
also, if i get the l2 cache, but dont actually use macos (at the moment 
I am pondering booting macos 7.6.1 and openbsd), will other operating 
systems make use of it? i'm not sure how that works.

third, would it be possible to move a faster cpu into the same board? 
i.e., i just replaced my ipx cpu with a weitek unit. would it be 
possible to get a 40mhz cpu out of an 840av and just plunk it in there? 
what other upgrades are available?

thanks,
alex
--
alex j avriette, perl hacker
avriettea at speakeasy.net
http://envy.posixnap.net/