Amiga.org
Amiga computer related discussion => Amiga Marketplace => Topic started by: TheMaDMaN on October 30, 2008, 07:29:27 AM
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I finally decided to sell my beloved A4000/040, and thought someone on here might be interested.
Located in Melbourne, Australia. Are there still any other Amiga people around in Melbourne, let alone Australia, that might be interested?
http://www.oztion.com.au/buy/auction.aspx?itemid=5674637 (http://www.oztion.com.au/buy/auction.aspx?itemid=5674637)
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A shame it's keyboardless and floppyless - you'd probably get quite a bit more interest otherwise...
Good luck though in any case!
- Ali
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Yes will be watching with interest to see how you go with Oztion. I have an Amiga 4000/060 which I was about to list on eBay not being aware of this other site. I might wait now!
Hope your sale goes well!
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Hi
I have read your add. Are you sure about this:
"CPU: Motorola MC68040 running at 25MHz (50MHz internally)".
As I know, the 68040 does not have any internal clock doubler option.
But the intel 486 cpu can have internal clock doubler.
Have you refer too wrong cpu?
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Hmmm not bad for a project box I'd say.
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I'll remove that from the listing, I thought the 68040 worked faster internally then externally, I remember reading that somewhere but seeing as I could be wrong, I'll simply remove that, thanks!
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yes it does. it usually runs on a Phase Locked Loop generator for the CPU clock, (40Mhz crystal pumped into phased locked loop circuit generates an 80Mhz signal), which feeds the internal CPU clock, then gets halved, for the external I/O. (a-la Warpengine)
so a 40Mhz crystal on a phaselockedloop means a 40Mhz external, 80Mhz internal speed.
040 boards that use crystals to feed the CPU directly, no PLL circuit, (phase5/dce stuff) run the 80Mhz crystal directly to the CPU to get the 80Mhz internal speed, then gets halved for the 40Mhz external.
its why you can de-solder a 25Mhz 040 off of a blizzPPC and replace it with a 50Mhz 060, because both are fed off a 50Mhz crystal. (ignoring the obvious voltage regulator swap)
this is also why Mac quadra's were marketed as 25/50Mhz 33/66Mhz and eventually 40/80Mhz machines, about 14 years ago iirc. (were there any 20/40Mhz ones?
although in amigaland, advertising a 68040 running at 50mhz is missleading as people usually go by the external clock, so to say you're running an 040 at 50Mhz (external clock) would imply you're running a sonnet quad doubler. also popular in Mac circles. replaced a 25Mhz 040 with a special 50Mhz 040 that was doubling the already doubled 25Mhz clock for a 100Mhz internal clock, and 50Mhz external.
still with me? no? i think i lost myself too on that one :lol:
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@ darksun9210
You sure went around the houses! :crazy:
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still with me? no? i think i lost myself too on that one :lol:
I understood, doesn't matter, thats why I specified that it still had the A3640 CPU board and took photos, so people wouldn't be guessing.
I'd just like the old girl to go to a good home, seeing as I never use it anymore. If it's any help, I could always stick a spare hard drive in it that I've formatted and installed WB on via WinUAE...
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Good luck with your sale.
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yup, good luck from here too...
i like the fact that hardware "does the rounds" so to speak instead of getting dumped in a loft/garage/where-ever. :-)
i also like your avatar of a mk1 ford escort being able to do a burn out! :-D