1MB GVP Ram

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Since you already have 4MB SIMMs, you could potentially convert them to 1MB. See here:

http://eab.abime.net/showthread.php?p=1143662

You could cut the trace at pad 20 (A9) on the bottom of the original module and tie A9 on one of the chips to ground (jumper pin 5 to 26 on one chip).

I know this works because I made up some 4MB SIMMs and had a bridge to ground on A9 accidentally. It tested fine as 1MB but you would need to cut the trace on SIMM so the rest of the slots are not tied low.

Hope that helps. Otherwise if I get a chance I'll try and make a 1MB one if noone else can help you.

One question though, why do you need 1MB when you have 4MB?



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The Problem is that i need 68 Pin 1Mb GVP Simm not 64 Pin.
For this Card http://amiga.resource.cx/exp/gforce3040
 
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Ahh ok my bad, totally didn't know there was such a thing!

Hope someone can help you out. Good luck!

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