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Any interest in 16MB Mac IIFX memory modules?


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8 hours ago, hyperneogeo said:

 

Sure I will put you down. I'm going to make some more on Wednesday. I will give you a PM then. 

Much appreciated!  :)

I was just in the rabbit hole of making my own based on those same schematics, but when I found this topic that gave me an easy opt-out option.

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8 hours ago, fred30w said:

Much appreciated!  :)

I was just in the rabbit hole of making my own based on those same schematics, but when I found this topic that gave me an easy opt-out option.

No problem :)

 

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20 hours ago, hyperneogeo said:

I made the other modules, but my IIFX decided that it didn't want to play anymore. I think the CPU took a hike since I heard a pop in that area. I'm ordering another CPU, should be here next week. 

Oh no!

 

Have you recapped your board ?

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8 hours ago, MrFahrenheit said:

Oh no!

 

Have you recapped your board ?

Yeah, I did. I was actually fiddling with the cpu crystal when I was doing it. I think I may have shorted something when I turned it on. 

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8 hours ago, hyperneogeo said:

Yeah, I did. I was actually fiddling with the cpu crystal when I was doing it. I think I may have shorted something when I turned it on. 

Ouch!  That hurts!

There was a IIfx motherboard that recently sold on eBay for a decent price ($40 if I recall).  Would have made a decent parts board.  I've seen IIfx parts show up fairly reasonably from time-to-time.

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22 hours ago, hyperneogeo said:

I made the other modules, but my IIFX decided that it didn't want to play anymore. I think the CPU took a hike since I heard a pop in that area. I'm ordering another CPU, should be here next week. 

Ouch, that's a bummer... hopefully it's simple enough to remedy. Your workmanship on this 128MB set looks perfect and it's working flawlessly in my system; the height clearance is just perfect to retain my dual drive tray too! 

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17 hours ago, jeremywork said:

Ouch, that's a bummer... hopefully it's simple enough to remedy. Your workmanship on this 128MB set looks perfect and it's working flawlessly in my system; the height clearance is just perfect to retain my dual drive tray too! 

I'm glad it's working :) Yeah I saw the 3rd party 16MB ram modules from back in the day and they are quite tall lol. 

 

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11 hours ago, hyperneogeo said:

So I have 6 sets of 4 left and that's all there's going to be (have a few other ones just in case there's a problem with someones) 

 

Love how you're burning through that reel megabytes at a time; thanks for doing this for the community!

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Posted (edited)

Was fiddling with the crystal more on the Mac.

 

120 mhz Crystal = 60 mhz Mac = Crash on boot with a bus error

110 mhz Crystal = 55 mhz Mac = Works fine, but sound is completely messed up

105 mhz Crystal = 52-53 mhz Mac = Works fine, but sound is kind of messed up

100 mhz Crystal = 50 mhz Mac = Everything seems to work fine.

 

I have a 50 mhz 030 and 50 mhz FPU installed and I don't really want to test it on a 40 mhz 030 hah.

 

Btw that's the original ram I made, it's too wide, so I can fit it in, but it's never coming out lol. 

 

Photo%20Jul%2025,%207%2055%2026%20PM.jpg

Edited by hyperneogeo
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