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EISA 486LXE (MODEL L433S)
ACER, INC.
EISA 486LXE (MODEL L433S)
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Processor
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80486SX/80487SX/80486DX/ODP486SX/80486DX2
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Processor Speed
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25/33/50(internal)/50/66(internal)MHz
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Chip Set
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SIS
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Max. Onboard DRAM
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128MB
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SRAM Cache
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128/256KB
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BIOS
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Acer
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Dimensions
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220mm x 260mm
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I/O Options
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32-bit VESA card slot
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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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Power LED & keylock
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CN4/1 - 5
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Turbo switch
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CN4/15 - 17
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Speaker
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CN4/7 - 10
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Reset switch
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CN4/19 & 20
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Turbo LED
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CN4/12 & 13
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32-bit VESA card
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S1
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USER CONFIGURABLE SETTINGS
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Function
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Jumper
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Position
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VESA bus wait states select 0
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JP8
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pins 2 & 3 closed
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VESA bus wait states select 1
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JP8
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pins 1 & 2 closed
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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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1MB
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(4) 256K x 9
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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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4MB
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(4) 1M x 9
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NONE
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5MB
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(4) 256K x 9
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(4) 1M x 9
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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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16MB
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(4) 4M x 9
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NONE
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20MB
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(4) 1M x 9
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(4) 4M x 9
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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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64MB
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(4) 16M x 9
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NONE
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128MB
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(4) 16M x 9
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(4) 16M x 9
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CPU SPEED CONFIGURATION FOR CH9001 SYSTEM CLOCK CHIP
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CPU Speed
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JP9
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33/66(internal)MHz
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pins 1 & 4 closed
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25/50(internal)MHz
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pins 3 & 6 closed
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40MHz
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pins 1 & 2 and 4 & 5 closed
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50MHz
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pins 2 & 5 closed
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SRAM CONFIGURATION
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Size
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Cache SRAM
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Location
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Jumpers JP6 & JP7
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128KB
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(4) 32K x 8
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Bank 0
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pins 2 & 3 closed
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256KB
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(8) 32K x 8
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Banks 0 & 1
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pins 1 & 2 closed
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