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Amiga computer related discussion => Amiga Marketplace => Topic started by: AltRN8 on March 05, 2016, 01:20:15 AM

Title: Wanted 68060
Post by: AltRN8 on March 05, 2016, 01:20:15 AM

I'm looking for a good place to pickup full featured 68060 chips with fpu and mmu. This is for use on a 040 -> 060 adapter. Any suggestions for a trustworthy place to buy such a processor.

Title: Re: Wanted 68060
Post by: Abu the monkey on March 05, 2016, 01:29:02 AM

try amibay, they come up quite often.
example,
http://www.amibay.com/showthread.php?81075-CPU-MC68060RC50-Rev-6-Mask-71E41J

Title: Re: Wanted 68060
Post by: guest11527 on March 05, 2016, 11:30:39 AM

Quote from: Abu the monkey;805403

try amibay, they come up quite often.
example,
http://www.amibay.com/showthread.php?81075-CPU-MC68060RC50-Rev-6-Mask-71E41J

I would be actually a bit suspicious about this offer. The mask revision cannot be read because it is hidden under the CPU cooler. I would probably try to get an arrangement with the seller to return the CPU in case the mask revision is not the promised mask.   You can read out the CPU revision in the PCR register of the CPU, so this is a relatively easy verification.

Title: Re: Wanted 68060
Post by: Abu the monkey on March 05, 2016, 08:58:59 PM

true. Do some research, but, it was only an example.
but, the guy has 100% feedback.

Title: Re: Wanted 68060
Post by: Lurch on March 05, 2016, 09:14:56 PM

120 Euro??? Wow, so might hold on to my one longer :-)

Title: Re: Wanted 68060
Post by: jltursan on March 07, 2016, 07:31:34 AM

I'm also looking for one; but indeed it seems to much to pay for an unknown 68060

Title: Re: Wanted 68060
Post by: H1ghpuff on March 07, 2016, 03:48:06 PM

It all depends on what revision the 68060 is. Revision 1 can easily be found on eBay, the more rare revision 6 (overclock friendly and runs much cooler) is harder. I think I have a few 68060 with revision 1 that I can sell for 7-80 Euro

Title: Re: Wanted 68060
Post by: danbeaver on March 07, 2016, 07:58:34 PM

I have bought 6 of Andry's Rev 6 68060 (new, old stock) for 150 EUR and all were exactly as described.  It is (in my humble opinion only) that when he lists a used pull Rev 6, and he says he tests it, then it is real, and 120 EUR's ain't bad for a near impossible to find CPU.

As noted Vide Supra, this is IMHO only.

Title: Re: Wanted 68060
Post by: delshay on March 09, 2016, 05:32:17 AM

I have a few real 68060RC50 & RC60 rev6, marking down the left hand side has 002,004 & 006 ending, but I am only willing to sell a de-soldered 68060RC50 rev6.

I have to agree with the other posting here, why would you put a heatsink on a rev6?

FREESCALE marking, you can't go much wrong here & should be real.

One other note, you can overclock some older revisions to a higher than normal overclock frequency, but you have to Increase the voltage a litter higher than 3.3v.   ...I forgotten which older revision this works on, but if I find time I will check & post again. If I remember correctly I think I raised it to 3.45v.

Title: Re: Wanted 68060
Post by: jltursan on March 09, 2016, 07:58:30 AM

Interesting; but how can you raise the 3.3V from the regulator?, feeding it from a different source?

Title: Re: Wanted 68060
Post by: delshay on March 09, 2016, 10:08:22 AM

Drop in replacement regulator. 3.38/3.45 or 3.6v.

Fake rev6 68060.  ..look at the date it was manufactured, this will also give a clue, if it is a real rev6.

Here is the marking of one of my Processors.

MC68060RC60.  71E41J.  QQDD0312C.  S23328-006.

you can see it was made week 12 year 2003 & 006 also gives a indicator this is real.

Here's another

MC68060RC60.  71E41J.  QAN0102A.   S23328-004.

2nd week year 2001, this one has 004 ending, which also indicates this is real..