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This simple sheet explained everything you need to know to use your new
Sirus RAM II
GS
2/4/8 Meg RAM Expansion
The Sirius RAM Il
GS
is 100% DMA Compatible." It has been tested with both Apple High Speed and RAMFast SCSI
cards as well as other DMA peripherals such as the VisionPlus Video Digitizer.
Sirius RAM has been tested with AppleWorks 3.0 & up AppleWorks Il
GS
vl.l, Platinum Paint 2.0, HyperStudio 3.0,
Hyper Card II
GS
, GNO/ME 2.0.5, the Orca Series & Merlin 16 Plus to name just a few.
A few notes about DMA compatibility:
Only the first 4 megs of EXPANDED memory are DMA compatible. This does not include RAM on your motherboard
which is also DMA compatible. The computer hardware is well aware of this and no special workarounds are needed.
This means it will do DMA when it can, and won't when it cant. You can use all 8 meg of RAM and have the Apple
High Speed or RAMFast card configured with DMA active.
7.5C
D4
1024K
L
H
O O O
O O O
O O O
O O O
O O O
D6
256K
CRow0
CRow1
7.5C
D4
1024K
L
H
O O O
O O O
O O O
O O O
O O O
D6
256K
CRow0
CRow1
7.5C
D4
1024K
L
H
O O O
O O O
O O O
O O O
O O O
D6
256K
CRow0
CRow1
7.5C
D4
1024K
L
H
O O O
O O O
O O O
O O O
O O O
D6
256K
CRow0
CRow1
1 Meg 2 Meg 4 Meg 8 Meg
7.5C
D4
1024K
L
H
O O O
O O O
O O O
O O O
O O O
D6
256K
CRow0
CRow1
7.5C
D4
1024K
L
H
O O O
O O O
O O O
O O O
O O O
D6
256K
CRow0
CRow1
1 Meg (256) 2 Meg (256)