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Documentation for SE/30 graphics card needed

retrofreak83

Active member
Hello all,

One of my SE/30s came equipped with a graphics card (and even more (?)).
There is very little information on or about it. The two only parts of information is:
The PCB says:
MEMORY PLUS
COGAM-4 REV B
on it, and there is a EPROM, labeled:
Color SE30
A13 - IPT

I would to know more about this card, e.g. if there is any software for it, or documentation.
At least, I would like to know what I have here exactly :)

I successfully managed to get an output using a Mac/VGA DB15/HD15 adapter, but regardless what I set it to, 640x480 was the highest resolution I got. Maybe the card is not able to do more?

Any help/information is appreciated :)
 

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mikes-macs

Well-known member
I have one of these in my SE/30. 640x480 256. Works well with Mac OS 7.5-8.1.
I have not found software for it so I'm using it with standard Mac video drivers.

page1image256


page1image256


This is what TattleTech 2.5.8 says about it.

• Display# = 2
◊ Active = Yes
◊ Main Screen = Yes
◊ Color Device = Yes
◊ Type = CLUT Device
◊ Driver# = -51
◊ Screen Size = 640 X 480 Pixels
◊ Resolution = 72.0 X 72.0 Pixels/Inch
◊ Pixel Depth = 8 (256 Colors)
◊ Max Pixel Depth (Installed Memory) = 8 (256 Colors)
+ Mem Req for This Depth = 307,200 Bytes (0.3 MB)
◊ Mem Req for 24 Bit (Millions) = 1,228,800 Bytes (1.2 MB)

• Nubus/PDS Slot# = $0B
◊ Board Name = Generation X V/30A
◊ Board ID = 548
◊ Vendor ID = Generation X
◊ Revision Level = Alpha 1.0
◊ Part# = V/30A
◊ Functional Resources :
+ Device sResource Name = Color_Virtual_Display
- Device Category = 3 (Display)
- Device Type = 1 (Video)
- Device Software Interface Type = 1
- Device Hardware Type = 1
- Device sResource# = $80
- Driver Number = -51
----------------------------------
• Nubus/PDS Slot# = $0E


There was a post here in which members wanted to know what the writing on the 2 dies says, that is usually sanded off for some reason.
 
Last edited:

mikes-macs

Well-known member
BTW, there is a control panel titled "Gamma" that helps improve the display quite a bit with this card. 256 shades of gray is possible on certain monitors.
 
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