Closed A3640 Upgrade

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psychoman

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Hi, i´m helping my brother with his A3000, we got our hands on an A3640 without CPU/Crystal, but since i´ve upgraded an BPPC from 040 to 060 i've now got both the CPU and Crystal, mounted it in the A3640 cpu board but the amiga refused to boot, just black screen.. after some research i´ve found out that the REV3 of the a3640 card wont work at all in A3000 i´ve looked wich REV it was.. and i wasn´t to supriced when it said 3..
i have also understod that it´s upgradable to 3.1 atleast wich will work in an a3000, so what i´m actually searching for is if someone is able to:

Upgrade the A3640 REV3 to REV3.x(1/2)
anyone have the skills or know someone who have the skills? :)
 
I can program the gals and the soldering work is easy enough.
 
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Cosmos in France.
Stachu in Poland.

I would recommend that at the same time you upgrade your A3640 to 3.2 that you apply this overclock and state machine circuits created by SpeedGeek which will give memory accesses a huge boost and can be done at the same time with little or no extra work.

https://www.amibay.com/showthread.php?t=19993
 
Cosmos in France.
Stachu in Poland.

I would recommend that at the same time you upgrade your A3640 to 3.2 that you apply this overclock and state machine circuits created by SpeedGeek which will give memory accesses a huge boost and can be done at the same time with little or no extra work.

https://www.amibay.com/showthread.php?t=19993

You keep track of all the good mods!

Will definitely be doing that - assuming I get the 4000 running (bought a cheaper a3630 for testing until I know it works then buy a a3640 after)


Sent from my iPhone using Tapatalk. Please excuse any crazy auto corrects or lack of detail (links to info sources)
 
did you remember to set the clk jumpers on the mobo to external?


jupp :) the problem is that the A3640 board is REV 3.0 :/

---------- Post added at 15:15 ---------- Previous post was at 15:13 ----------

Sound intresting, sending a PM

I also do the v3.2 hardware upgrades on these boards. Plus correct capacitors, etc, at the same time. More detail:
http://amiga.serveftp.net/A4000_HardwareGuide/a3640ref.html

New programmed GALs available here:
http://amiga.serveftp.net/inventory.xgi
 
I' m so sorry, i missread you first.. :( i read it as you could program the gal and i somhow got it to that i should solder it myself, but now when i read it again you offered me all the work, i´m so sorry :(
pm:ing you to about this and asking you, first in line as it should have been, again, so sorry


Seems I was completely ignored.

No problem btw


---------- Post added at 17:09 ---------- Previous post was at 16:38 ----------

Offering accepted from Bad_Ad84 waiting for payment method/details
so sorry for the mess in this thread :(
 
I do not think in wanted thread you have to follow the queue. You can choose best option for you.
 
I said he can go with whoever he likes multiple times in PM. I am not forcing him to use me or stick to an order.

just FYI
 
I said he can go with whoever he likes multiple times in PM. I am not forcing him to use me or stick to an order.

just FYI
Hey, I did not want to argue with this just stating the fact, nothing more, no offence.
 
Uhm.. what?

There was no offence, I was just letting everyone know the side they have not seen in PM. I didnt want it to seem like I was forcing him to respect "the order" or anything like that.
 
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