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PREFERRED 486 MGE/VL
CSS LABORATORIES, INC.
PREFERRED 486 MGE/VL
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Processor
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80486DX/80486DX2/Pentium Overdrive
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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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256MB (128MB on CPU module)
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Cache
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512KB (on CPU module)
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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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CPU module slot, 32-bit VESA local bus slots (2)
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NPU Options
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None
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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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J4
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Reset/Turbo switch
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J41
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Power LED & keylock
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J5
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32-bit VESA Local bus slots
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SL1 & SL2
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Equipment panel connector
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J39
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CPU module slot
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SL3
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IDE interface LED
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J40
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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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»
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Monitor type select monochrome
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JP9
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Closed
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Monitor type select color
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JP9
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Open
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»
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Factory configured - do not alter
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JP30
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Open
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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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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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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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12MB
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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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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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20MB
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(4) 1M x 9
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(4) 4M x 9
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NONE
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NONE
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24MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 4M x 9
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NONE
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24MB
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(4) 1M x 9
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(4) 4M x 9
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(4) 1M x 9
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NONE
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28MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 4M x 9
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(4) 1M x 9
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28MB
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(4) 1M x 9
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(4) 4M x 9
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(4) 1M x 9
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(4) 1M 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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NONE
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NONE
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36MB
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(4) 1M 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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36MB
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(4) 4M x 9
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(4) 4M x 9
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(4) 1M x 9
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NONE
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40MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 4M x 9
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(4) 4M x 9
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40MB
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(4) 1M x 9
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(4) 4M x 9
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(4) 4M x 9
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(4) 1M x 9
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40MB
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(4) 4M x 9
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(4) 4M x 9
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(4) 1M x 9
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(4) 1M x 9
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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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52MB
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(4) 1M 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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52MB
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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) 1M x 9
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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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64MB
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(4) 16M x 9
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NONE
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NONE
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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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NONE
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NONE
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196MB
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(4) 16M x 9
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(4) 16M x 9
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(4) 16M x 9
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NONE
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256MB
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(4) 16M x 9
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(4) 16M x 9
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(4) 16M x 9
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(4) 16M x 9
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Note: Banks 2 & 3 are located on the CPU module board.
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CPU SPEED CONFIGURATION
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Speed
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JP1
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JP6
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JP7
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25MHz
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pins 1 & 2 closed
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Open
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Open
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33MHz
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pins 1 & 2 closed
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Open
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Closed
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50iMHz
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pins 1 & 2 closed
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Closed
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Closed
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66iMHz
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pins 1 & 2 closed
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Open
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Closed
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VESA BUS SPEED CONFIGURATION
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CPU speed
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JPV3
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<=33MHz
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Open
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> 33MHz
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Closed
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VESA WAIT STATE CONFIGURATION
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Wait states
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JPV1
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JPV2
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0 wait states
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Open
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Open
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1 wait state
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Closed
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Closed
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EQUIPMENT PANEL CONFIGURATION
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Description
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J39
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Ground
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pin 1
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Power
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pin 2
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Hard drive LED
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pin 3
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Not used
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pin 4
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Power
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pin 5
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Ground
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pin 6
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Turbo LED
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pin 7
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Keyboard inhibit
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pin 8
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Power
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pin 9
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Reset button
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pin 10
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