[comp.sys.amiga.hardware] SetCPU FPU error message

LEIF@SLACVM.SLAC.STANFORD.EDU (05/16/91)

I recently acquired  a 1983 CSA model 724 68020/881 "Adaptor" board. I
managed to plug it into the 68000 socket in my Amiga 2000.  I  wanted to
determine some of the operating parameters for this board, and immediatly
turned to SetCPU.  I have two questions regarding the report given by
SetCPU regarding this board, and about boards in general.

1. Running SetCPU with no arguments returns the CPU configuration. When I
   do this, SetCPU tells me I have a 68020/68881, but also tells me that
   it detects a "FPU logic error".  What would causes this, and what can
   I do to fix it?

2. After installing this board, testing it with various programs and
   noticing some apparant increace in speed, I wonder, is there a utility
   which can determine the clock speed at which the CPU is currently
   running?

The 68020 is rated at 12MHz and the 68881 is rated at 16MHz.  I don't
know if there is even a clock crystal on the board at all.  If this thing
is running at stock Amiga 2000 speed (7.16whatever MHz) then I would like
to try upping the speed somehow.  Any useful advice or information duly
appreciated.  Thanks...

Leif Johnson                                      leif@slacvm.slac.stanford.edu