But did you get up to 40Mhz using the stock cpus?

Can you get a full '040 (25Mhz) up to 40Mhz, or are these LC040s?

>From: John Klos <john@sixgirls.org>
>To: Kris Jones <shiny_razor@hotmail.com>
>CC: port-mac68k@netbsd.org
>Subject: Overclocking Quadra 605s and Performa 475s
>Date: Fri, 31 May 2002 15:19:30 -0400 (EDT)
>
>Hi,
>
>Here is a quick HOW-TO on overclocking Quadra 605s and Performa 475s. I've
>successfully overclocked nine of these to 40 MHz, and all are stable and
>reliable.
>
>Most of the information is already available from:
>http://gabezing.sytes.net/LC475-40Mhz-E.html
>
>That site isn't exactly very clear on certain things; so, to simplify,
>here is what you need to do:
>
>1) Perform the resistor swap as indicated to bring the system to 33 MHz
>(this decouples some other clock, I guess; the system won't be stable at
>40 MHz without doing this)
>
>2) Get a 20 MHz oscillator and connect pin 7 (or the equivalent) to pin 7
>of the 31.33 MHz oscillator on the rear right corner of the motherboard;
>also connect pin 14 to pin 14. These are ground and +5 volts, respectively
>
>(20 MHz oscillators can be bought from, say, Digikey(.com))
>
>3) Remove R93 from the back of the motherboard. Then run a short wire from
>pin 8 of the oscillator to the R93 pad that is closer to the middle of the
>motherboard.
>
>That's it! I know this is basically what that web page says, but I hope my
>language is a little clearer.
>
>Finally, of course, if you want to run NetBSD now, you'll need a real
>68040, not an LC040. We're still working on creating a binary snapshot of
>a NetBSD system that does all floating point via software.
>
>Then go buy a 64 meg SIMM for $12 USD and you'll have a very happy Quadra
>605!
>
>John Klos
>Sixgirls Computing Labs
>




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