A500 4mb-8mb fast ram expansion - Page 3

Gounderset · 23 July 2012, 20:34

Hi!
Is it an idea to add a clockport on this card?

Regards
Geir Ove

kipper2k · 23 July 2012, 22:57

Quote:

Originally Posted by Gounderset

Hi!
Is it an idea to add a clockport on this card?

Regards
Geir Ove

mabbe later on, the more that gets added, the higher the price, i wanted this to remain cheap so no bells and whistles.

Retrofan · 23 July 2012, 23:13

Kipper2k you've got so many projects for sale and on development now...
I just want to say you're great. That's all

prowler · 23 July 2012, 23:15

Quote:

Originally Posted by Retrofan

Kipper2k you've got so many projects for sale and on development now...
I just want to say you're great. That's all

+1!

kipper2k · 24 July 2012, 13:56

Hi all,

quick update, i have a few built and will be running a memchecker to verify them and then will start messaging people who have already shown an interest. I will also open a for sale thread on amibay once i am ready, (prob tomorrow or Thursday. Once i receive the larger order i just placed i wil sell the blank boards to those that requested.

Thanks for your interest and support

seuden · 24 July 2012, 14:02

I best mention that I'm interested then.

kipper2k · 24 July 2012, 16:53

i updated my webpage with the new items ...

http://kipper2k.com/amigaforsale/

kipper2k · 26 July 2012, 18:22

Hi all,

I have posted a for sale on Amibay for this item. For those people who have already expressed interest, you are at the top of the list, any new requests on this thread will compete with Amibay based on time placed

Thanks to all for your interest

jiffy · 27 July 2012, 12:09

Does it fit in with an Indivision ECS?

mfilos · 27 July 2012, 18:45

It sure does judging from the pictures

amiman99 · 28 July 2012, 18:32

I have an interesting question, on A500 8Mb board, can I disable 4MB if I have another board with ram installed, like A2000 A2091 controller and so on?
thanks

kipper2k · 28 July 2012, 19:25

Quote:

Originally Posted by amiman99

I have an interesting question, on A500 8Mb board, can I disable 4MB if I have another board with ram installed, like A2000 A2091 controller and so on?
thanks

Hi, NedoPC did not make that info public on his board that had autoconfig and enable/disable options, BUT! i think that putting an on - off switch on pin 14 of RAM 1+2 and another on RAM 3+4 will allow the chips to be disabled. With the current code, both sets would have to be disabled and the Amiga should boot up with no ram visible... (i would have to test once i get some time)

edit; One more thing i forgot, the 8mb code should allow 4mb to be installed and still work, but the 4mb code will not work on an 8mb board. So in theory, an 8mb board could have 4mb disabled and still work, again, i'd have to check

kipper2k · 01 August 2012, 19:55

picture paints a thousand words. This is the A500 - 1.3: 9mb, 8mb board, 512k ram in trapdoor and basic 512k.

Jope · 02 August 2012, 23:57

Quote:

Originally Posted by kipper2k

picture paints a thousand words. This is the A500 - 1.3: 9mb, 8mb board, 512k ram in trapdoor and basic 512k.

You could have more.. 1MB chip, 1.8MB ranger fast and 8MB Zorro 2 fast.. ;-)

kipper2k · 03 August 2012, 01:10

Quote:

Originally Posted by Jope

You could have more.. 1MB chip, 1.8MB ranger fast and 8MB Zorro 2 fast.. ;-)

lol, don't tell everyone, they'll want more

ikonsgr · 04 August 2012, 16:22

What if you mod the amiga 500 rev 6a motherboard to see the trapdoor 512k as chip ram (1mb chip ram in total)?I assume there will be no prob with that right?
Does this fast ram might cause problems to some games? Is there any way to disable it by adding a switch?
Also, are you aware of any games that might benefit from this huge fast ram addition? :-)

kipper2k · 06 August 2012, 21:17

Hi All,

Time for an update.

I have the boards and i am starting to build them now.

I have found an issue with all rev 5 A500 motherboards. The board works with all motherboard revisions (V5.1, V5.2, V5.3, V6a.1, V6a.2, A500+ V8a1.1 and A500 + V8a1.2), however, the placement of the Rom chip on the Rev 5 motherboards conflicts with the through hole 44 pin PLCC socket that i used. The problem that this leads to is in order to plug in the expansion board on the Rev 5 boards an extra set of risers need to be used, which will interfere with the underside of the keyboard. (I didn't have a Rev 5 motherboard and i assumed there was no major placement changes), That'll teach me

So here's what i am going to do. If you have the Rev 5 motherboard, stay tuned as i am going to redesign the board so that it sits in a different location. ( probably be about 2 - 3 weeks till i have them)

For those with the a500 V6 series and A500+ motherboards the expansion board will still fit. I am in the process of building and will start sending out emails in the next 48 hours or so. I have to head off out of town next weekend for a few daysso i am going to try to do as many as i can so i can mail them in Winnipeg which will save 2 days in the mail system.

majsta · 06 August 2012, 21:57

Maybe just one suggestion if you doing redesign again. Use tantalum capacitors instead aluminum electrolytic, there is lot of reasons for doing that.

lost_loven · 06 August 2012, 22:25

Dang! guess timmies is out then next sunday.
Just putting it out there - - - 1st inline for new redesigned board

lost

alenppc · 07 August 2012, 00:17

Hmm, I am one of those with a rev 5 board... I also have a rev8 A500+ but it doesn't boot, presumably due to bad caps...

01 August 2012, 19:55	#53
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	picture paints a thousand words. This is the A500 - 1.3: 9mb, 8mb board, 512k ram in trapdoor and basic 512k. Last edited by prowler; 01 August 2012 at 22:12. Reason: Moved post from A600 thread.

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23 July 2012, 20:34	#41
Gounderset Registered User Join Date: Apr 2012 Location: Bergen/Norway Posts: 8	Hi! Is it an idea to add a clockport on this card? Regards Geir Ove

23 July 2012, 23:13	#43
Retrofan Ruler of the Universe Join Date: Mar 2010 Location: Lanzarote/Spain Posts: 6,195	Kipper2k you've got so many projects for sale and on development now... I just want to say you're great. That's all

24 July 2012, 13:56	#45
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	Hi all, quick update, i have a few built and will be running a memchecker to verify them and then will start messaging people who have already shown an interest. I will also open a for sale thread on amibay once i am ready, (prob tomorrow or Thursday. Once i receive the larger order i just placed i wil sell the blank boards to those that requested. Thanks for your interest and support

24 July 2012, 14:02	#46
seuden uber cool demi god Join Date: Jun 2006 Location: Kent/England Posts: 2,073	I best mention that I'm interested then.

24 July 2012, 16:53	#47
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	i updated my webpage with the new items ... http://kipper2k.com/amigaforsale/

26 July 2012, 18:22	#48
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	Hi all, I have posted a for sale on Amibay for this item. For those people who have already expressed interest, you are at the top of the list, any new requests on this thread will compete with Amibay based on time placed Thanks to all for your interest

27 July 2012, 12:09	#49
jiffy Registered User Join Date: Sep 2011 Location: Netherlands Posts: 54	Does it fit in with an Indivision ECS?

27 July 2012, 18:45	#50
mfilos Paranoid Amigoid Join Date: Mar 2008 Location: Athens/Greece Age: 45 Posts: 1,978	It sure does judging from the pictures

28 July 2012, 18:32	#51
amiman99 Registered User Join Date: Sep 2009 Location: San Antonio, TX USA Age: 50 Posts: 1,185	I have an interesting question, on A500 8Mb board, can I disable 4MB if I have another board with ram installed, like A2000 A2091 controller and so on? thanks

04 August 2012, 16:22	#56
ikonsgr Registered User Join Date: Nov 2011 Location: Thessaloniki /Greece Posts: 81	What if you mod the amiga 500 rev 6a motherboard to see the trapdoor 512k as chip ram (1mb chip ram in total)?I assume there will be no prob with that right? Does this fast ram might cause problems to some games? Is there any way to disable it by adding a switch? Also, are you aware of any games that might benefit from this huge fast ram addition? :-)

06 August 2012, 21:17	#57
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	Hi All, Time for an update. I have the boards and i am starting to build them now. I have found an issue with all rev 5 A500 motherboards. The board works with all motherboard revisions (V5.1, V5.2, V5.3, V6a.1, V6a.2, A500+ V8a1.1 and A500 + V8a1.2), however, the placement of the Rom chip on the Rev 5 motherboards conflicts with the through hole 44 pin PLCC socket that i used. The problem that this leads to is in order to plug in the expansion board on the Rev 5 boards an extra set of risers need to be used, which will interfere with the underside of the keyboard. (I didn't have a Rev 5 motherboard and i assumed there was no major placement changes), That'll teach me So here's what i am going to do. If you have the Rev 5 motherboard, stay tuned as i am going to redesign the board so that it sits in a different location. ( probably be about 2 - 3 weeks till i have them) For those with the a500 V6 series and A500+ motherboards the expansion board will still fit. I am in the process of building and will start sending out emails in the next 48 hours or so. I have to head off out of town next weekend for a few daysso i am going to try to do as many as i can so i can mail them in Winnipeg which will save 2 days in the mail system.

06 August 2012, 21:57	#58
majsta www.majsta.com Join Date: Jun 2010 Location: Banjaluka/Republic of Srpska Age: 43 Posts: 448	Maybe just one suggestion if you doing redesign again. Use tantalum capacitors instead aluminum electrolytic, there is lot of reasons for doing that.

06 August 2012, 22:25	#59
lost_loven Registered User Join Date: May 2007 Location: winnipeg Posts: 358	Dang! guess timmies is out then next sunday. Just putting it out there - - - 1st inline for new redesigned board lost

07 August 2012, 00:17	#60
alenppc Registered User Join Date: Apr 2012 Location: Canada Age: 44 Posts: 910	Hmm, I am one of those with a rev 5 board... I also have a rev8 A500+ but it doesn't boot, presumably due to bad caps...

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