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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: AmigaNut08 on May 20, 2009, 10:42:27 PM
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Hi,
about 11 or so years ago not long after i purchased my Apollo 1240 040@25Mhz (No. On CPU reads XC68040RC25M) i was told it can be overclocked with out any problems after reading the numbers on the CPU to someone i knew that worked on Amiga's back then. I have since been running it at 40Mhz without fail. I did have to put a slightly larger fan on it though. At the same time i was offered a 100Mhz crystal to try on the Apollo but i thought i'd stick with 40Mhz. I mm now eager to try my 040@50Mhz. Does anyone have a 100Mhz Crystal for sale, or know were i can buy a 100Mhz crystal that will fit my Apollo board.
Cheers
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Hi,
Now knowing (well i have known for a while, just my interest in getting my 040 to run faster is recent) that the old Macs use to have 040's running at 66Mhz i am eager to try my 040@50Mhz.
Cheers
I'm not aware of any Macs running at a "true" 66Mhz with a 68040. Marketing promoted the fact that the internal speed was clock-doubled (much like a 486DX2) at 66MHz, but that would in reality be a 33MHz chip.
However, Sonnet at one point offered a 040 plug-in board overclocked at 50MHz, but it had a peltier cooler glued to the top.
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I'm not aware of any Macs running at a "true" 66Mhz with a 68040. Marketing promoted the fact that the internal speed was clock-doubled (much like a 486DX2) at 66MHz, but that would in reality be a 33MHz chip.
However, Sonnet at one point offered a 040 plug-in board overclocked at 50MHz, but it had a peltier cooler glued to the top.
Yes you are right and i have adjusted my original post as the information was not correct. I was going by what someone told me and a quick search on everymac has a power PC @66Mhz not an 040 as i was told.
I will still like to try my 040@50Mhz though.
Cheers