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- Path: sparky!uunet!usc!elroy.jpl.nasa.gov!ames!agate!dog.ee.lbl.gov!hellgate.utah.edu!cc.usu.edu!slbfn
- From: slbfn@cc.usu.edu
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: SUMMARY: 16MHz A3000 to 25MHz (!) Hardware "Hack"
- Message-ID: <1992Aug17.111029.58207@cc.usu.edu>
- Date: 17 Aug 92 11:10:29 MDT
- References: <1992Aug12.151140.58087@cc.usu.edu> <1992Aug17.132428.4865@tom.rz.uni-passau.de>
- Organization: Utah State University
- Lines: 46
-
- In article <1992Aug17.132428.4865@tom.rz.uni-passau.de>, hessmann@unipas.fmi.uni-passau.de (Georg Hessmann) writes:
- > In article <1992Aug12.151140.58087@cc.usu.edu> slbfn@cc.usu.edu writes:
- >>
- >>
- >> HOW TO (MAGICALLY) TRANSFORM A
- >> 16MHz AMIGA 3000 TO 25MHz
- > [...]
- >>
- >> (2) Remove the 68030 CPU. This is definately *NOT* an easy task!
- >> You must carfully desolder all the pins. (The 68030 is packaged
- >> in a very fine-pitched 128 pin PQFP.) Make sure you remove all
- >> solder. Don't be messy. If you don't know how to do this, don't!
- >> It is very easy to screw up your motherboard. Please make sure
- >> you know what you are doing.
- >
- > This isn't really necessary.
- > I have a 16MHz A3000 witch is 'upgraded' to 25MHz *without* changing
- > the 68030 CPU. A 16MHz CPU is reliable also with 25MHz.
- > *My* Amiga works since about nearly two years without any problems.
- >
- > I think it's saver to use a 16MHz CPU with 25MHz (a 16MHz 68030 *is* a
- > 25MHz 68030, but only testet up to 16MHz), than to remove a SMD CPU.
-
-
- Several people (I beleive 3) emailed me telling me NOT to do this. That
- is why I didn't include this. Those people had totally fried their
- processors. Remember, there is no guarantee knowing that the 68030 in
- your Amiga will work at 25MHz, but it is quite possible that it is
- actually a 25MHz chip. Also, some other person had effectively ran his
- 16MHz CPU at 28MHz by doing that. OF course, he used a 56MHz crystal.
-
- However, I do not suggest doing this, unless you are brave. I guess you
- could try it, and if your CPU fails, then you can replace it. Oh well...
-
- -Travis Carter
- slbfn@cc.usu.edu
-
-
-
- > Georg.
- >
- > PS: No warranty however... :)
- >
- > --
- > hessmann@unipas.fmi.uni-passau.de (Georg Heāmann)
- > (Oberer Markt 7/D-8712 Volkach)
-