[rescue] voyager and pcmcia wifi with solaris

[Romain Dolbeau]

Le dim. 9 nov. 2025 à 03:46, Dan Moisa via rescue <rescue at sunhelp.org> a écrit :
> Speaking of Voyager, can I take a microsparc-II at 110Mhz out of a 5 or similar and substitute the @70 it comes with? So far I'm led to believe that yes.

What you need to do depends on how the MicroSPARC II is wired.
Presumably, it is using the internal PLL, so:
* you need to change the clock supplied to the CPU to whatever you
want to run it at;
* you need to check what that clock is also feeding to make sure
you're not overclocking unwanted components;
* you need to change the input to the PLL divider (pins DIV_CNTL[1:0])
so that the SBus is not overclocked. I assume it is 1/3 for a 70 MHz
MicroSPARC II, you would need at least 1/4 up to 100 MHz (the voyage
can probably take the SBus moving from 23.333 to 25 MHz), and 1/5 over
100 MHz.
* whatever else that might be needed

Both then as Andrew said, power/thermal are going to be the problem.
They're unlikely to be dimensioned for +50% on the CPU.

Cordially,

-- 
Romain Dolbeau