[SPARCbook] Overclocking 3GS (was: Reviving a Dead SparcBook 3GS - stuck booting)

[Steve Conley]

patl at phoenix.volant.org wrote:
> 
> On 15-Dec-99 at 20:25, Barry A. Dobyns (barry at dobyns.com) wrote:
> > Well, I was just thinking, I have the 3GS (85MHZ) and I know that the 3GX
> > (110Mhz) is basically the same guts with a faster CPU daughter card.  So
> > if I only cranked up the clock to 110Mhz, same as the 3GX, I wouldn't be
> > exceeding any design limits in the system.
> 
> Are you sure?  Does the 110MHz module run hotter than the 85MHz one?
> Or do the CPUs actually run at about the same temperature at their
> rated speeds?  Personally, I wouldn't count on the 85MHz module staying
> in thermal spec at 110MHz.  I would also be wary of the 'basicly' in
> 'basicly the same'.  Can you be certain that none of the changes are
> related to improving heat dissipation or hardening components against
> thermal stress?
> 
> -Pat
> 
> _______________________________________________
> Sparcbook mailing list  -  Sparcbook at sunhelp.org
> http://www.sunhelp.org/mailman/listinfo/sparcbook

How can you even overclock something like that?  SPARCbooks don't
exactly
have jumpers anywhere ;-)


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