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Homebrew IIfx RAM - Did anyone finish making these?

olePigeon

Well-known member
I saw this thread, but user fraveydank stopped posting here years ago.

Has anyone else attempted to make new IIfx RAM?  Even they sold for $50 for a single 16MB SIMM, that'd still be a bargain right now.

Edit:  Just saw THIS thread.

@joethezombie  made some.  If I can source the parts, can someone guide me through who/how I send the files to?

 
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LaPorta

Well-known member
I would also want to get in on this. I don't need to "max" mine out, but 64 MB would be nice.

 

Bolle

Well-known member
I made myself some 2-layer SIMMs for the IIfx based on the 4-layer design joe used.

Couldn‘t get them to work yet but I also went for the cheapest non-gold plated PCB option so I suspect they do make very bad contact.

Stopped to care after a few tries because 32MB is actually enough for my IIfx.

Gotta dig those out and see if I can actually get them to work.

In the end the hard part won’t be making the PCBs but sourcing the dual ported RAM chips you need in large enough quantities.

 
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olePigeon

Well-known member
I found compatible DRAM for about $2/chip, maybe less if I can get combined shipping.  Trying to see if the seller has more.  I might do a bulk order and just make a bunch of SIMMs.  That way I can use the higher quality PCBs.

 

joethezombie

Well-known member
Hi guys!  After success with Doug's design, I found some NOS memory, and had a bunch of PCBs and a stencil made!

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Unfortunately, let's just say it's been a very challenging start of the year for me.  I've had some serious events happen lately, and I've had to let some things take to the back burner.   I'll see if I can find these items, and have a chip baking party.  It might be a wee bit though.   Sorry!

 

olePigeon

Well-known member
Oh, wow.  That's quite the operation.  I was looking at making some myself, but if you have a bunch already, I'd be interested in some.

 

Compgeke

Well-known member
Same! My IIfx came to me with 16 megs of ram, I'm letting it down by having more ram in my Mac IIcx.

 

Von

Well-known member
Please count me in as well. I am hoping to get one of my IIfx boards up and running soon.

 

CC_333

Well-known member
This is interesting.

My IIfx has 32 MB, so that's probably enough.  However, if/when I can afford something, 64 MB might be neat.

c

 
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