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1100 16/20
ACER AMERICA CORPORATION
1100 16/20
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Processor
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80386SX
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Processor Speed
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16/20MHz
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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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2MB
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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
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80387SX
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CONNECTIONS
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Purpose
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Location
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External battery
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CN1
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USER CONFIGURABLE SETTINGS
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Function
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Label
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Position
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Monitor type select MDA/MGA/EGA
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SW1/5
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Off
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Monitor type select CGA
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SW1/5
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On
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DRAM CONFIGURATION
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Note: Board is shipped with 2MB. The orientation and bank location is unidentified.
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DRAM SWITCH CONFIGURATION
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Setting
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SW1/7
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SW1/8
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Mode 3
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Off
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On
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Mode 4
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Off
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Off
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Note: BIOS resides in ROM in mode 3. In mode 4, it is transferred to RAM.
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CPU SPEED SELECTION
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Speed
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SW1/6
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Smart mode
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On
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16MHz
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Off
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20MHz
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Off
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Note: If smart mode is used, system will automatically switch from 16MHz/20MHz to 8MHz.
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NPU TYPE SELECTION
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Type
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JP6
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JP7
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JP8
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80387SX installed
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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80387SX not installed
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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BIOS SELECTION
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Type
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JP5
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SW1/1
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SW1/2
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SW1/3
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SW1/4
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27128
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2 & 3
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On
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On
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Off
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Off
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27256
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2 & 3
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Off
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Off
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On
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On
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27512
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1 & 2
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Off
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Off
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On
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On
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Note: Pins designated should be in the closed position.
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MISCELLANEOUS TECHNICAL NOTE
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Note: The location of pin 1 on the jumpers and switch are unidentified.
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