[SunHELP] How to tell if Sombra CPU's are installed?

[Dale Ghent]

On Thu, 7 Mar 2002 echase at postoffice.providence.edu wrote:

| I'm far from an expert on Sun hardware, but what the heck is a Sombra CPU
| versus a "regular" CPU?

Sombra CPUs are the UltraSPARC-II CPUs Sun produced for the x500 series of
servers to combat the infamous e-cache parity errors that plague us2 CPUs
that run above 400Mhz with certain e-cache SRAM chips.

These CPUs have mirrored e-cache, and are actually supplied on a whole
x500 CPU/Memory board... that's how you get it from Sun... no
removing/adding them to existing CPU/Mem boards.

There's no way I'm aware of to identify them on a system from the OS
(short of pulling out the board itself and looking at it.) It does require
OBP version of at least 3.2.28, so that's the only almost-uncertain thing
you could go on.

/dale