macintosh rom simms

Teo Zenios teoz at
Tue Mar 10 15:12:00 CDT 2009

----- Original Message ----- 
From: "Brian Lanning" <brianlanning at>
To: "General Discussion: On-Topic and Off-Topic Posts" 
<cctalk at>
Sent: Tuesday, March 10, 2009 3:50 PM
Subject: Re: macintosh rom simms

> On Tue, Mar 10, 2009 at 2:43 PM, Teo Zenios <teoz at> wrote:
>> Make sure those VRAM SIMMs are 80ns, the 100ns variety are only good with
>> the old 030 based LC machines, Quadras need faster VRAM. You also need to
>> install them in pairs or four at a time I believe (depending on the
>> machine).
> The we love macs page says there's 6 slots for a total of 2megs of
> video memory.  I don't remember there being that many sockets, but it
> was a quick glance.  I'll survey the situation a little more closely
> when i get home.  Thanks for the info.
> brian

Yea the Q700 was the odd one, one of the few models I don't have. Q950's 
have 4 empty slots (max 2MB), Q840av also have 4 (Max 2MB), Q800 have 2 I 
think (max 1MB).

VRAM for Nubus machines came in 512K and 256K varieties. 

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