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VS486S
YOUNG MICRO SYSTEMS, INC.
VS486S
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Processor
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80486SX/80486DX/80486DX2
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Processor Speed
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25/33/40/50(internal)/66(internal)MHz
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Chip Set
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Symphony
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Max. Onboard DRAM
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64MB
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Cache
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64/256KB
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BIOS
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AMI
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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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4167
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CONNECTIONS
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Purpose
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Location
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Purpose
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Location
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Speaker
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CN1
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Turbo LED
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CN4
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Power LED & keylock
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CN2
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Turbo switch
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CN5
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Reset switch
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CN3
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DRAM CONFIGURATION
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Size
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Bank 0
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Bank 1
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Bank 2
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Bank 3
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1MB
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(4) 256K x 9
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NONE
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NONE
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NONE
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2MB
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(4) 256K x 9
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(4) 256K x 9
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NONE
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NONE
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4MB
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(4) 1M x 9
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NONE
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NONE
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NONE
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5MB
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(4) 1M x 9
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(4) 256K x 9
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NONE
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NONE
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8MB
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(4) 1M x 9
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(4) 1M x 9
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NONE
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NONE
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16MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 1M x 9
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(4) 1M x 9
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16MB
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(4) 4M x 9
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NONE
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NONE
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NONE
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32MB
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(4) 4M x 9
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(4) 4M x 9
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NONE
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NONE
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48MB
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(4) 4M x 9
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(4) 4M x 9
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(4) 4M x 9
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NONE
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64MB
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(4) 4M x 9
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(4) 4M x 9
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(4) 4M x 9
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(4) 4M x 9
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CACHE CONFIGURABLE
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Size
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Cache
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64KB
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(9) 8K x 8
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256KB
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(9) 32K x 8
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CACHE JUMPER CONFIGURATION
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Size
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J2
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J5
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J8
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64KB
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pins 2 & 3 closed
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pins 2 & 3 closed
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pins 2 & 3 closed
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256KB
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pins 1 & 2 closed
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pins 1 & 2 closed
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pins 1 & 2 closed
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Note:This board is direct but not user upgradable and has two factory defauts to incorporate the 486DX/33MHz or 486DX/50MHz.
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