A600 4MB RAM upgrade board (was 8MB)

kipper2k · 07 May 2012, 13:55

Hi All,

I found this page while trolling...

http://lvd.nedopc.com/Projects/a600_8mb/index.html

it is a design done in 2007 for an 8mb ram upgrade for an A600 and i am wondering if anyone has the eagle cad files/info/anything about this board. if parts/help vailable i'd like to try this, no promises, i have a lot on my plate at the moment but i think it would be a good ptoject. I know that there was a 2008 upgrade to this board but can't find anything

UPDATE;

I have now updated the a600 4mb board to 8mb. if you'd like to skip all earlier info then click on the link below to get latest details

http://eab.abime.net/showpost.php?p=...&postcount=310

cpiac64 · 07 May 2012, 14:07

the 4 mega version is ok, the 8 mega i suppose is only for sale

Predseda · 07 May 2012, 14:14

contact Zetr0 over Amibay, he should be able to tell you more. This is one of the failed projects and probably a reason why Zetr0 doesnt appear on EAB anymore

alexh · 07 May 2012, 14:15

Zetr0 will have them. He had a deal with LordV and AcidRain to remake the 2008 version.

A mistake crept into the re-designed PCB and ruined the whole batch. Probably cost a lot of money!

Here is the original 2008 page.

http://lvd.nedopc.com/Projects/a600_8mb_2/index.html

kipper2k · 07 May 2012, 14:18

Quote:

Originally Posted by alexh

Zetro will have them. He had a deal with LordV to remake the 2008 version.

A mistake crept into the re-designed PCB and ruined the whole batch.

http://lvd.nedopc.com/Projects/a600_8mb_2/index.html

Hi Alexh,

I remember that, something about the omitted ground plane. I haven't seen any activity from Zetr0 for a while. I'll try to get hold of him and see if he has anything

Thanks

alexh · 07 May 2012, 14:21

I imagine that making a low cost PCMCIA SRAM card might be as easy and as much use for A600 users. Half length??

Arnie · 07 May 2012, 14:30

Quote:

Originally Posted by alexh

I imagine that making a low cost PCMCIA SRAM card might be as easy and as much use for A600 users. Half length??

Even half the cost would be helpful

spock-79 · 07 May 2012, 18:45

I made three collective orders at a1k.org. The 2007 Version works really good, is easy to solder and there is also a firmware for 4MB. With the 4MB firmware PCMCIA is still working!

For me it's the perfekt A600 RAM-Expansion. One expansion with 4MB costs ~26€, 8MB was ~32€, pending on ordered PCBs and the price of the RAM ICs.

fitzsteve · 07 May 2012, 19:21

Quote:

Originally Posted by spock-79

I made three collective orders at a1k.org. The 2007 Version works really good, is easy to solder and there is also a firmware for 4MB. With the 4MB firmware PCMCIA is still working!

For me it's the perfekt A600 RAM-Expansion. One expansion with 4MB costs ~26€, 8MB was ~32€, pending on ordered PCBs and the price of the RAM ICs.

Maybe we could do a group buy for kits for assembly by the end user or an EAB'er could do them for a small fee?

I would buy a couple of kits

spock-79 · 07 May 2012, 19:49

Quote:

Originally Posted by fitzsteve

Maybe we could do a group buy for kits for assembly by the end user or an EAB'er could do them for a small fee?

I would buy a couple of kits

Sure we can! I have ordered 30 PCBs, all needed parts to assemble the expansion are already here. The PCBs should normally arrive until end of may.
Programming the CPLD is also no problem.

But i have to sort out how much expansions are already sold...

On Amibay i posted a little HowTo for building the expansion:
http://www.amibay.com/showthread.php?t=13132

And yes, my english is awful... Especially when it comes to technical things..

kipper2k · 07 May 2012, 20:16

i can assemble these, What would be the cost of the boards plus the parts ?. if people want them assembled i can assemble them. 4mb is good enough for WHDload games and allowing those apps that require fast ram to run.

I could get the boards made pretty cheaply too

alenppc · 07 May 2012, 20:57

Making anything for the poor 600 is a good idea, but I think the major issue is the 68000 here. Adding a 68020 would be a major boost in power and usefulness. There was a dude on Amiga.org a few years ago who bought a whole bunch of 14 MHz 68EC020s (250 or so?) on ebay with the intention of developing something for the 600. Wonder whatever happened with that.

Allen1 · 07 May 2012, 21:23

Quote:

Originally Posted by kipper2k

i can assemble these, What would be the cost of the boards plus the parts ?. if people want them assembled i can assemble them. 4mb is good enough for WHDload games and allowing those apps that require fast ram to run.

I could get the boards made pretty cheaply too

I know that I would be interested in a couple of these either assembled or in kit form, assembled would be the easiest method though

duga · 07 May 2012, 22:21

Interested in 4 MB version.

spock-79 · 07 May 2012, 23:30

Quote:

Originally Posted by kipper2k

i can assemble these, What would be the cost of the boards plus the parts ?. if people want them assembled i can assemble them. 4mb is good enough for WHDload games and allowing those apps that require fast ram to run.

I could get the boards made pretty cheaply too

Pending on customs duty and shipping costs, one PCB will be around 5€.

But this time it was really hard to find a big amount of cheap RAM ICs, and i had to pay custom duty for the CPLDs (they came from digikey).

So one 4MB expansion is about 26€, 8MB 32€.

I earn nothing on the expansions, even if somebody wants a assembled unit the price is the same.

kipper2k · 07 May 2012, 23:33

Quote:

Originally Posted by spock-79

Pending on customs duty and shipping costs, one PCB will be around 5€.

But this time it was really hard to find a big amount of cheap RAM ICs, and i had to pay custom duty for the CPLDs (they came from digikey).

So one 4MB expansion is about 26€, 8MB 32€.

I earn nothing on the expansions, even if somebody wants a assembled unit the price is the same.

I wouldn't have to pay duty on the cpld's. Are compatible ram chips available from digikey ? and if so, part numbers

spock-79 · 07 May 2012, 23:48

Quote:

Originally Posted by kipper2k

I wouldn't have to pay duty on the cpld's. Are compatible ram chips available from digikey ? and if so, part numbers

No, the ram chips aren't available at digikey. Only FPM ram in 42 pin SOJ package is possible on this expansion, for example HY5118160

kipper2k · 08 May 2012, 01:03

what about this memory ...

http://download.siliconexpert.com/pd...118(6)160c.pdf

in the 42 pin SOJ format

spock-79 · 08 May 2012, 06:21

That should be the right ram chips. Every 42 pin Ram chip with 8160 in his part number should work.

alexh · 08 May 2012, 07:35

If I remember correctly the problem with the 2007 version is the physical fit? Which was why the 2008 version is a dual PCB board.

How bad is it?

07 May 2012, 13:55	#1
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	A600 4MB RAM upgrade board (was 8MB) Hi All, I found this page while trolling... http://lvd.nedopc.com/Projects/a600_8mb/index.html it is a design done in 2007 for an 8mb ram upgrade for an A600 and i am wondering if anyone has the eagle cad files/info/anything about this board. if parts/help vailable i'd like to try this, no promises, i have a lot on my plate at the moment but i think it would be a good ptoject. I know that there was a 2008 upgrade to this board but can't find anything UPDATE; I have now updated the a600 4mb board to 8mb. if you'd like to skip all earlier info then click on the link below to get latest details http://eab.abime.net/showpost.php?p=...&postcount=310 Last edited by kipper2k; 28 May 2013 at 19:59.

07 May 2012, 20:16	#11
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	i can assemble these, What would be the cost of the boards plus the parts ?. if people want them assembled i can assemble them. 4mb is good enough for WHDload games and allowing those apps that require fast ram to run. I could get the boards made pretty cheaply too Last edited by kipper2k; 07 May 2012 at 20:22.

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07 May 2012, 14:07	#2
cpiac64 Registered User Join Date: Apr 2010 Location: Italy Posts: 1,136	the 4 mega version is ok, the 8 mega i suppose is only for sale

07 May 2012, 14:14	#3
Predseda Puttymoon inhabitant Join Date: Mar 2007 Location: Tromaville Age: 46 Posts: 7,537	contact Zetr0 over Amibay, he should be able to tell you more. This is one of the failed projects and probably a reason why Zetr0 doesnt appear on EAB anymore

07 May 2012, 14:15	#4
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,331	Zetr0 will have them. He had a deal with LordV and AcidRain to remake the 2008 version. A mistake crept into the re-designed PCB and ruined the whole batch. Probably cost a lot of money! Here is the original 2008 page. http://lvd.nedopc.com/Projects/a600_8mb_2/index.html

07 May 2012, 14:21	#6
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,331	I imagine that making a low cost PCMCIA SRAM card might be as easy and as much use for A600 users. Half length??

07 May 2012, 18:45	#8
spock-79 Registered User Join Date: Apr 2007 Location: Bremen Posts: 66	I made three collective orders at a1k.org. The 2007 Version works really good, is easy to solder and there is also a firmware for 4MB. With the 4MB firmware PCMCIA is still working! For me it's the perfekt A600 RAM-Expansion. One expansion with 4MB costs ~26€, 8MB was ~32€, pending on ordered PCBs and the price of the RAM ICs.

07 May 2012, 20:57	#12
alenppc Registered User Join Date: Apr 2012 Location: Canada Age: 44 Posts: 910	Making anything for the poor 600 is a good idea, but I think the major issue is the 68000 here. Adding a 68020 would be a major boost in power and usefulness. There was a dude on Amiga.org a few years ago who bought a whole bunch of 14 MHz 68EC020s (250 or so?) on ebay with the intention of developing something for the 600. Wonder whatever happened with that.

07 May 2012, 22:21	#14
duga Registered User Join Date: Nov 2010 Location: Sweden Posts: 528	Interested in 4 MB version.

08 May 2012, 01:03	#18
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	what about this memory ... http://download.siliconexpert.com/pd...118(6)160c.pdf in the 42 pin SOJ format

08 May 2012, 06:21	#19
spock-79 Registered User Join Date: Apr 2007 Location: Bremen Posts: 66	That should be the right ram chips. Every 42 pin Ram chip with 8160 in his part number should work.

08 May 2012, 07:35	#20
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,331	If I remember correctly the problem with the 2007 version is the physical fit? Which was why the 2008 version is a dual PCB board. How bad is it?

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