In my search for answers to my VRAM questions I downloaded the Apple
document, Centris_660AV_Quadra_840AV.pdf On page xxiii under the
heading Software Overview it states,
The Macintosh Quadra 840AV and Macintosh Centris 660AV are supplied
with essentially identical versions of the Macintosh
The Quadra 900 and 950 each have two hardware SCSI busses. I.e.,
they each have two NCR 53C96 chips connected to electrically separate
SCSI bus hardware. However, the Apple hardware developer document
Mac_Quadra_900.pdf states that The internal and external SCSI
buses are logically
In a message dated 9/27/03 11:13:01 PM, [EMAIL PROTECTED] writes:
So, if one has SCSI Manager 4.3 loaded (it's an extension as well as
built into ROM in later machines) does the Quadra 900 support a full
14 SCSI devices on its two SCSI busses (7 each). Or is it still
limited to seven total?
I have two questions. First the mundane one. Would someone please
explain the taxonomy of VRAM SIMMs on the Mac?
I take it that there are 68 pin VRAM SIMMs and I think from reading
the Developer notes and examining motherboards that the Centris/Q
610/650/800 all use the same 256K SIMMs as
Yeh surely nost old stuff running on a 601 wouldn't me
much faster than an 040 anyway due to MacOS emulation?
=
Stan
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At 01:36 AM 9/28/2003, you wrote:
In my search for answers to my VRAM questions I downloaded the Apple
document, Centris_660AV_Quadra_840AV.pdf On page xxiii under the
heading Software Overview it states,
The Macintosh Quadra 840AV and Macintosh Centris 660AV are supplied with
essentially
From: [EMAIL PROTECTED]
Date: Sun, 28 Sep 2003 02:19:26 EDT
In a message dated 9/27/03 11:13:01 PM, [EMAIL PROTECTED] writes:
So, if one has SCSI Manager 4.3 loaded (it's an extension as well as
built into ROM in later machines) does the Quadra 900 support a full
14 SCSI devices on its two SCSI
Date: Sun, 28 Sep 2003 07:24:10 +0100
From: vicki [EMAIL PROTECTED]
Does the Q650/800 (Wombat) motherboard have the ability to address
more than 1 MB of VRAM? I know there aren't sockets available on the
motherboard, but does anyone know if the chips have the ability to
address more? If
I have a performa 630CD with 36MB of RAM. I have an 8mb RAM card(the
original that came with the mac) I want to know, can I install it to use as
video memory? My mac only has 1mb of video memory and I play a game like
Duke Nukem but it is to slow. Thanx
Jeff,
When SCSI manager 4.3 is active you should indeed have access to 14
total devices. Unfortunately since SCSI manager 4.3 is not active
until after the system loads, you really don't have access to all the
devices at boot time. Even with the workgroup server card which gives
you two
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