[SunRescue] Ultrasparc CPU dismantling

Chris Kozlowski razer at ultra.darkcartel.com
Mon Nov 1 21:30:57 CST 1999


Okay, here's the story on the UltraSPARC IIi processors.
Apparently, the speed of the processor is controlled by
the little module board, and the rated speed is ignored
by an Ultra 5.  It is easy to swap CPUs between boards.
The speed of the CPU moves with the board.  Which leads
me to an interesting question -- the boards are relatively
simple, and it is possible that mere resistors are indicating
to the Darwin at what speed it is to run -- how would we
modify them to overclock our CPUs?  The 333 mhz CPU that
I took apart actually held a 360 mhz rated UltraSPARC...

Just food for thought and you electrical engineers out
there ;-)

Chris








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