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From: burkert1@platon.fmi.uni-passau.de (Klaus Burkert)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: 4 meg ZIPS=3.5 megs installed?
Message-ID: <1991Jun17.111857.3056@forwiss.uni-passau.de>
Date: 17 Jun 91 11:18:57 GMT
References: <8476@oasys.dt.navy.mil>
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In article <8476@oasys.dt.navy.mil> lapeyre@oasys.dt.navy.mil (J P Lapeyre) writes:
>Hi, I recently installed 8 1Megabit x 4 bit Zips into my 16/50 A3000
>and moved the 256Kx4 dips  into chip memory. I installed the  zips into
>bank 0 and when I rebooted my A3000 shows 2 meg chip memory and 3.5 meg
>fast RAM. I've checked and rechecked all pins but can't see any probs.
>I removed one chip and the machine wouldn't even boot. Anyone know
>why my system doesn't show 4 megs of fast RAM? The 3.5 worth all checks
>out fine. That's my dilemma, the other 0.5 meg doesn't even show up
>so, how can I test it?
>
You forgot one important thing:
Because Kickstart is not in ROM yet, it is being loaded from disk.
And because it must be loaded to RAM and its size is 512KB, 0.5 Meg of your
FastRAM is being eaten up!

Klaus.
-------------------------------------------------------------
Klaus Burkert        email: burkert1@platon.fmi.uni-passau.de
Brandweg 11          voice: +49-851/83993
D-W-8390 Passau   /  Federal Republic of Germany