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ADVANTAGE! 4000 SERIES 486 (234068-001)
AST RESEARCH, INC.
ADVANTAGE! 4000 SERIES 486 (234068-001)
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Processor
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80486SX/SL80486SX/ODP486/80486DX/SL80486DX/CX486DX2SL/ AM486DX2SL/80486DX2
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Processor Speed
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25/33/50(internal)/66(internal)MHz
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Chip Set
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Unidentified
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Max. Onboard DRAM
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36MB
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Cache
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None
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BIOS
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AST
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Dimensions
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330mm x 218mm
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I/O Options
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Floppy drive interface, IDE interface, parallel port, serial port, riser slot, power to hard drive, power to floppy drive, power to CD-ROM, data/fax modem cabled
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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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C20 (2-pin)
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Power to hard drive connector
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1245
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Front panel LED’s
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C20 (4-pin)
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Floppy drive interface
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1250
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Power to CD-ROM power connector
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CD-ROM PWR
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IDE interface
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1251
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Serial port
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CN1
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Alternate power connector
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1252
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Parallel port
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CN2
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Front panel LED connector
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1351
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Power to floppy drive connector
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FDD PWR
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Cable to data/fax modem
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1604
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Chassis fan power
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J28
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Riser slot
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SL1
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Note: The locations of 1245, 1604, J28, FDD PWR & CD-ROM power are unidentified.
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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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Factory configured - do not alter
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1101
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N/A
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»
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Factory configured - do not alter
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1254
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N/A
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»
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Factory configured - do not alter
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1604
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N/A
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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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4MB
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4MB
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None
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None
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8MB
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4MB
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(1) 1M x 32
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None
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12MB
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4MB
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(1) 1M x 32
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(1) 1M x 32
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20MB
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4MB
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(1) 4M x 32
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(1) 4M x 32
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36MB
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4MB
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(1) 4M x 32
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(1) 4M x 32
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Note: Bank 0 is factory installed and is not configurable. The location is unidentified.
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CPU TYPE CONFIGURATION
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Type
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1201
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1202
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1203
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1204
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1205
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80486SX
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Open
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2 & 3
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Open
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Open
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Open
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SL80486SX
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Open
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2 & 3
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Closed
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Closed
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Open
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ODP486
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Open
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1 & 2
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Open
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Open
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Open
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80486DX
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Closed
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1 & 2
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Open
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Open
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Open
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SL80486DX
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Closed
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1 & 2
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Closed
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Closed
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Open
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CX486DX2SL
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Closed
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1 & 2
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Open
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Open
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Open
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AM486DX2SL
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Closed
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1 & 2
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Open
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Open
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Open
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80486DX2
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Closed
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1 & 2
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Open
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Open
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Open
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Note: Pins designated should be in the closed position.
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CPU TYPE CONFIGURATION (CON’T)
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Type
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1206
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1207
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1208
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1209
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1210
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80486SX
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Open
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Open
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Open
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Open
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Open
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SL80486SX
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Open
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Closed
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2 & 3
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Open
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Open
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ODP486
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1 & 2
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Open
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Open
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Open
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Open
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80486DX
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2 & 3
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Open
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Open
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Open
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Open
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SL80486DX
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2 & 3
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Closed
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2 & 3
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Open
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Open
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CX486DX2SL
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2 & 3
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Open
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2 & 3
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Open
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Open
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AM486DX2SL
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2 & 3
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Open
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1 & 2
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Closed
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Closed
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80486DX2
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2 & 3
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Open
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Open
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Open
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Open
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Note: Pins designated should be in the closed position.
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CPU TYPE CONFIGURATION (CON’T)
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Type
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1211
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1212
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1213
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1301
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1302
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80486SX
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Open
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Open
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Open
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1 & 2
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1 & 2
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SL80486SX
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Open
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Open
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Open
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1 & 2
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1 & 2
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ODP486
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Open
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Open
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Open
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1 & 2
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1 & 2
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80486DX
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Open
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Open
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Open
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1 & 2
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1 & 2
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SL80486DX
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Open
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Open
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Open
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1 & 2
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1 & 2
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CX486DX2SL
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Open
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Closed
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Closed
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2 & 3
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2 & 3
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AM486DX2SL
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Closed
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Open
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Open
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2 & 3
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2 & 3
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80486DX2
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Open
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Open
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Open
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1 & 2
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1 & 2
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Note: Pins designated should be in the closed position.
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CPU SPEED CONFIGURATION
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Speed
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1171
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1172
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1173
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25MHz
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Open
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Open
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Closed
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33MHz
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Closed
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Closed
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Closed
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50iMHz
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Open
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Open
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Closed
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66iMHz
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Closed
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Closed
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Closed
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CPU VOLTAGE CONFIGURATION
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Voltage
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1214
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1215
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1216
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1217
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3.3v
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Open
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Closed
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Pins 2 & 3 closed
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Closed
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| »
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5v
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Closed
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Open
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Pins 2 & 3 closed
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Open
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