Overclocking the 68060 cpu

[Rob]

I have a Blizzard 060/60 the processor is marked XC68EC060RC60.  It
currently runs at 66Mhz. I tried an 80Mhz crystal in it, at first the
system would not boot, booting without startup-sequnce  I tracked this
down to setpatch causing it to hang.

From the shell I manually loaded Workbench and tried running Sysinfo
but found that it hung the system when it switched the FPU on.

I did try running some demos that didn't require an FPU, and was quite
impressed by it's performance, but without being able to run setpatch
the system is pretty useless for most purposes.

The heatsink and fan I used made the 060 cool to the touch so it may
be that 68EC chips have weaker FPU's than other versions.

I would be interested to see how fast you can clock the non FPU
version.

[Rob]

@PaSha

It certainly does have an FPU, I just checked with showconfig and
sysinfo.  Plus many demos, benchmarks and other software also report
the fpu.  FPU only versions of software seem to work fine too.

It is a later version and is certainly marked EC as stated before.
Like I said its the FPU that hangs it at 80Mhz.