Identify please....

IvanEBC · 30 August 2022, 02:44

I believe, and i may be 100% correct here, and if not let me know.
This is a CPU adapter to allow a 68060 to be used in an A3640 board to upgrade your Amiga 4000?

I don't know anything about who made it, what is limitations are and i'd like to know more as i do have an A3640 untouched ... I even found a 80mhz crystal though i somehow don't think i could push this that far.

http://www.users.on.net/~ivanw/IMG_5112.JPG
http://www.users.on.net/~ivanw/IMG_5113.JPG
http://www.users.on.net/~ivanw/IMG_5114.JPG

Thanks in advance.

aeberbach · 30 August 2022, 03:39

It certainly looks like it. The major problem to solve in using a 68060 in place of 68040 was voltage. You see many A1200 accelerators (particularly Apollo) that have had their 68040 removed and now have a 68060 + a 3v3 regulator.

Biggest problem these days will be finding a 68060. Don't buy one unless the seller shows you actual output from a software program that queries the actual chip ID and revision number because almost all for sale from people you don't know, such as those on eBay, are fake.

IvanEBC · 30 August 2022, 04:57

Thanks.

I have a spare 060, but i'm saving that for a different project (060 into a A1200).

Thanks for the info.

Jope · 30 August 2022, 08:02

These work, but the 3640 is not an ideal design for even the 040, let alone the 060. You can't overclock very far, as the motherboard is also clocked from the CPU card in this application.

grelbfarlk · 08 September 2022, 04:20

Also keep in mind, these adapters require a patched exec.library in your ROM, you can't use them with a 3.1 Kickstart unless you install one that disables the FPU at power on, until setpatch runs. I think 3.2 Kickstart work just fine for this.

Jope · 09 September 2022, 08:31

3.1.4 also supports volt socket modded 040 -> 060 boards.

30 August 2022, 02:44	#1
IvanEBC Registered User Join Date: Jun 2016 Location: Adelaide / Australia Posts: 565	Identify please.... I believe, and i may be 100% correct here, and if not let me know. This is a CPU adapter to allow a 68060 to be used in an A3640 board to upgrade your Amiga 4000? I don't know anything about who made it, what is limitations are and i'd like to know more as i do have an A3640 untouched ... I even found a 80mhz crystal though i somehow don't think i could push this that far. http://www.users.on.net/~ivanw/IMG_5112.JPG http://www.users.on.net/~ivanw/IMG_5113.JPG http://www.users.on.net/~ivanw/IMG_5114.JPG Thanks in advance.

08 September 2022, 04:20	#5
grelbfarlk Registered User Join Date: Dec 2015 Location: USA Posts: 2,902	Also keep in mind, these adapters require a patched exec.library in your ROM, you can't use them with a 3.1 Kickstart unless you install one that disables the FPU at power on, until setpatch runs. I think 3.2 Kickstart work just fine for this. Last edited by grelbfarlk; 08 September 2022 at 04:40.

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30 August 2022, 03:39	#2
aeberbach Registered User Join Date: Mar 2019 Location: Melbourne, Australia Posts: 420	It certainly looks like it. The major problem to solve in using a 68060 in place of 68040 was voltage. You see many A1200 accelerators (particularly Apollo) that have had their 68040 removed and now have a 68060 + a 3v3 regulator. Biggest problem these days will be finding a 68060. Don't buy one unless the seller shows you actual output from a software program that queries the actual chip ID and revision number because almost all for sale from people you don't know, such as those on eBay, are fake.

30 August 2022, 04:57	#3
IvanEBC Registered User Join Date: Jun 2016 Location: Adelaide / Australia Posts: 565	Thanks. I have a spare 060, but i'm saving that for a different project (060 into a A1200). Thanks for the info.

30 August 2022, 08:02	#4
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	These work, but the 3640 is not an ideal design for even the 040, let alone the 060. You can't overclock very far, as the motherboard is also clocked from the CPU card in this application.

09 September 2022, 08:31	#6
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	3.1.4 also supports volt socket modded 040 -> 060 boards.

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