Re: AppleIIgs Rom1 Weirdness (con't)

[nathan@visi.com (Nathan Mates)]

In article <5eal37$72m$1@portal.mbnet.mb.ca>,
Todd Myers <tmyers@autobahn.mb.ca> wrote:
> I copied System 5.0.4 to the first partition of the 52Meg hard drive
> and now I get a boot message overlayed on top of the GS text splash
> (the one that announces what rom revision, copyright date, yadda,
> yadda, yadda.) This message states that I should see my local dealer
> for a ROM upgrade?!?!

   If the ROM identifdies itself as a ROM 01 or 3 on bootup, but the
system software says it isn't, there's two likely faults: (1) the ROM,
(2) the system software. There's a third possibility, that you don't
have enough RAM, and the error message is complaining about the wrong
thing. GS/OS 5.0.4 should be run in a system with at least 768K of RAM,
probably more.

>   From reading here in the past I understand that there were 2 (?)
>Rom1's. The motherboard is a IIe upgrade board, so I may have the
>first of these upgrades. The VGC handles double HiRes fine so I
>think that's the good version...I checked the FAQ earlier...the VGC
>chip revision was fine, but I cannot remember if the ROM1 PROM
>checked...342-0077-B. I will talk to Alltech and see if I can trade
>this in for a ROM3 MB.

   Somebody a while back was claiming that their system was not being
identified as a ROM 01 with the ROM 00's (buggy) VGC installed, but
was identified with a genuine ROM 01 VGC. As I've never heard of any
software-only methods of probing the VGC, that sounds pretty much
impossible, but it may be happening. It might be nice to take your
setup thru a debugger to see precisely what GS/OS is complaining
about, but I doubt that'd be very easy at all.

Nathan Mates
--
<*> Nathan Mates http://www.visi.com/~nathan/      <*>
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