|
8MHZ SYSTEM BOARD
UNIDENTIFIED
8MHZ SYSTEM BOARD
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Processor
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8088
|
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Processor Speed
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4.77/8MHz
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|
Chip Set
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Unidentified
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|
Video Chip Set
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None
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Maximum Onboard Memory
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640KB
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Maximum Video Memory
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None
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|
Cache
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None
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BIOS
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Unidentified
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Dimensions
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330mm x 218mm
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I/O Options
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None
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NPU Options
|
8087
|
|
CONNECTIONS
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|
Purpose
|
Location
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Purpose
|
Location
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Reset switch
|
JP1
|
Speaker
|
JP4
|
|
USER CONFIGURABLE SETTINGS
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|
Function
|
Label
|
Position
|
|
»
|
Factory configured - do not alter
|
SW1/1
|
Off
|
|
|
NPU not installed
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SW1/2
|
On
|
|
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NPU installed
|
SW1/2
|
Off
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DRAM CONFIGURATION
|
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Note: The location of the banks are unidentified. The number and type of memory chips is unidentified.
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DRAM SWITCH CONFIGURATION
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Size
|
SW1/3
|
SW1/4
|
|
128KB
|
Off
|
On
|
|
192KB
|
On
|
Off
|
|
256KB
|
Off
|
Off
|
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DRAM JUMPER CONFIGURATION
|
|
Size
|
JP3
|
|
4164 chips installed
|
Pins 2 & 3 closed
|
|
41256 & 4164 chips installed
|
Pins 1 & 2 closed
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CPU SPEED SELECTION
|
|
Speed
|
JP2
|
|
4.77MHz
|
Closed
|
|
8MHz
|
Open
|
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FLOPPY DRIVE SELECTION
|
|
Drives installed
|
SW1/7
|
SW1/8
|
|
1
|
On
|
On
|
|
2
|
Off
|
On
|
|
3
|
On
|
Off
|
|
4
|
Off
|
Off
|
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MONITOR SELECTION
|
|
Multiplier
|
SW1/5
|
SW1/6
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|
None
|
On
|
On
|
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Color (40 x 20)
|
Off
|
On
|
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Color (80 x 25)
|
On
|
Off
|
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Monochrome
|
Off
|
Off
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