Individual Computers "ACE2" Chip RAM

[giZmo350]

A new A500/2000 chip ram product from Jens. Interesting as it disables on board chip ram and it's 2MB is fully self contained. Odd pricing model though.

https://icomp.de/shop-icomp/en/produkt-details/product/ace2.html#filter=*

Due to the varying price, the product may be shown as "out of stock" temporarily. Just come back a few hours later.

[giZmo350]

May seem expensive at US $151.11, but the DKB & MegiChip come up rarely on eBay and when they do they usually go for appx $180.00. *

Here's an older DKB going for $189.99
https://www.ebay.com/itm/Amiga-500-2000-Megachip-2mb-Chip-Ram-Expansion-with-clip/132775475767?hash=item1eea08fa37:g:KRQAAOSw0INbeiJz

I think the ACE2, DKB and MegiChip, or similar are the only products that will get 2B/M Chip Ram on an A500/2000.

This may be a cheaper alternative but it won't give you 2M/B chip on a Rev 6A MB.
https://www.ebay.com/itm/2MB-RAM-upgrade-KIT-Commodore-Amiga-500-500-trapdoor-memory/273319974886?hash=item3fa323d7e6:g:5tsAAOSwDZ1bLAKM

No Gary adapter total memory:
A500 rev 3 or 5, OCS Agnus, Kick 1.2 - 0.5MB chip & 0.5MB slow
A500+ rev 8A - 2MB chip

With Gary adapter total memory:
A500 rev 3 or 5, OCS Agnus, Kick 1.3 - 0.5MB chip & 1.5MB slow
A500 rev 5, ECS Agnus, Kick 1.3 - 1MB chip & 1.5MB slow
A500 rev 6A, ECS Agnus, Kick 1.3 - 1MB chip & 1.5MB slow
A500+ rev 8A - 2MB chip & 1MB slow

So, I guess if you want 2M/B Chip Ram, this might be one of your last chances to get that capability.

* No, I don't own Individual Computer stock....   

[giZmo350]

I would agree that Jens probably bought up as many 8375 2MB ECS Agnus chips & PLCC84 adapter sockets as possible. As Jens states “there are no more adapter sockets available on the market - anywhere”

But interestingly, here’s another MegaChip project over at AmiBay. Limited run due to availability of Agnus chips. However, it doesn’t come with a PLCC adapter socket. You have to remove the Agnus socket and solder a cludged female socket-set to the motherboard. Daunting task!



And the AmiBay adapter does not support GenLock. Jens’ product does. And I think Jens put a lot of thought into his product.

AmiBay project;

http://www.amibay.com/showthread.php?101224-Megachip-for-A500-A2000-and-CDTV-(rj1307-project-Poland)

It's inexpensive though....   

[giZmo350]

What's great about this, versus using the PLCC socket adapter, is that you don't have any interference from the megachip when using a 68000 socket-based accelerator.   With the ACE2 and other Megachip variants, you'll have to use a CPU relocator to use both it AND an accelerator.

Great point! I have that problem with one of A500's now. I have an HC533 socket-based accelerator with no way to use it with a MegaChip (keyboard won't fit). But I also have an Indie ECS (the Indie ECS you can raise up though). I have NOT seen any CPU re-locator that gets around the MegaChip and in between the Indie ECS. Have you Kirk? I've been on the hunt for that.

Adding to the physical complexity, I also have an 8M/B ram module under my CPU. 

Actually, I can't remember the reason why now, but I don't think I've even tried the HC533 stacked on top of the ram module (or vice-versa).

I haven't messed with any of my stuff since the "great lights out". 

[giZmo350]

Unfortunately the 90 degree adapter doesn't go back far enough to clear the Agnus chip either. I might could raise it up too maybe. I wish there was one that sat back more towards the Gary chip. This is one of my projects when it gets cold again.

Interesting post over at AmiBay
http://www.amibay.com/showthread.php?99704-A500-CPU-Relocator-(-90-degree-)-Ideal-for-TF530

(Example Pic - Not my machine)



And I've already tried this - looked just like this pic too...  hahahaha

[giZmo350]

@Mike....... yea, I have to get re-motivated to fit that HC533. I have a bunch-o-riser pins to try again. Oh man, don't let your VXL*30 go to waste! Sounds like you're busier than ever!