AMIGA with 400MB of RAM?

[stopthegop]

Hi,

I'm trying to upgrade a Z3 Fastlane to 256M RAM.  If successful, that will give me almost 400M total counting the 16M on the MoBo and 128M on the cstorm -- an insane amount for an Amiga... but why the heck not??  Has anyone actually done this or know the exact procedure?  I have the Z3 and I know where to get sixteen 30-pin single-sided 16M simms.  I have heard that one (or more?) of the socketed chips on the Z3 board must be replaced.  Is this true?  If so, which ones?  And most importantly what do they need to be replaced with?

Thanks, David

[stopthegop]

@Framiga:

You're right, this hobby of ours is not a cheap one.  Credit (or blame) ebay for this...  

[stopthegop]

Zac:  How do I tell what version the ROM is on the Fastlane?

[stopthegop]

@Framiga:

According to http://www.amiga-hardware.com/showhardware.cgi?HARDID=1231 the Z3 memory is "95% as fast" as A4000 mainboard memory.  I'm sure this assumes 60ns SIMMs.

[stopthegop]

Funny!  "'Bouquet' of memory" ...

[stopthegop]

@Lemmink:

I share your frustration and I appreciate the information.  I was not aware of those things you mentioned.  Would it be possible, in your opinion, to somehow obtain the source code to program the GAL chips??  I know someone who is qualified and has the hw to do this type of work (programming ROMs, microsoldering, etc..), but he would obviously need the source files for the chips that need to be upgraded.  Do any of your former P5 contacts take bribes??