On Apr 30, 2004, at 05:09 pm, J.S. Garrison wrote:
on 4/30/04 6:53 AM, Mark Benson at [EMAIL PROTECTED] wrote:
I have a turbo040 card in my Performa 600 that I am trying to build
into a Super 68k Nubus machine. It registers in every info tool I've
tried in Mac OS as 40MHz, even in the QuadControl 2.2 panel. The CPU is
clearly a XC68040HRC33M however - a 33MHz chip. The Oscillator can is
20MHz and I have read up that 20MHz cans on these cards make them run
at 40MHz. I highly doubt the oscillator has been changed as the
soldering is far too neat and there are no marks that indicate it's
ever been removed.
Was Daystar overclocking these chips at the factory?
Probably NOT. In keeping with Mark Schrier's overclocking habits, I'm guessing someone resoldered a faster can into it.
Looking at John's post and looking again at my Turbo040 I really can't see it having been re-soldered. There are a lot of SMT components around it that have not been so much as even disturbed. There are no burn marks or signs of heat. If it was a non-factory job they made one hell of a tidy job of it :)
-- Mark Benson
AIM - SilValleyPirate MSN - [EMAIL PROTECTED] Visit FlatPackMacs online: <http://fpm.68kmac.com> Visit my Homepage: <http://homepage.mac.com/markbenson>
"Never send a human to do a machine's job."
-The Matrix
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