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PM486PU-S3 PCI
UNIDENTIFIED
PM486PU-S3 PCI
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Processor
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CX486SX/UMC486SX/80486SX/CX486DX/AM486DX/80486DX/CX486DX2/ AM486DX2/80486DX2/CX486DX4/AM486DX4/AM486DX4(WB)/80486DX4/ P24D/Pentium Overdrive/CXM1
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Processor Speed
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20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
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Chip Set
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UMC
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Max. Onboard DRAM
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64MB
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Cache
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128/256/512KB
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BIOS
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Unidentified
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Dimensions
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254mm x 218mm
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I/O Options
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32-bit PCI slots (3), green PC connector, floppy drive interface, IDE interfaces (2), parallel port, serial ports (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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External battery
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CN1
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Green PC connector
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JP1
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Serial port 2
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CN2
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Turbo switch
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JP2
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Serial port 1
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CN3
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Turbo LED
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JP3
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Parallel port
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CN4
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Reset switch
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JP4
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Floppy drive interface
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CN5
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Speaker
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JP5
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IDE interface 2
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CN6
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Power LED & keylock
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JP6
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IDE interface 1
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CN7
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32-bit PCI slots
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PC1 - PC3
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IDE interface LED
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J1
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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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J20
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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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1MB
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(1) 256K x 36
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NONE
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2MB
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(1) 256K x 36
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(1) 256K x 36
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2MB
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(1) 512K x 36
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NONE
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3MB
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(1) 256K x 36
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(1) 512K x 36
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4MB
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(1) 512K x 36
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(1) 512K x 36
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4MB
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(1) 1M x 36
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NONE
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5MB
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(1) 256K x 36
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(1) 1M x 36
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6MB
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(1) 512K x 36
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(1) 1M x 36
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8MB
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(1) 1M x 36
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(1) 1M x 36
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8MB
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(1) 2M x 36
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NONE
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10MB
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(1) 512K x 36
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(1) 2M x 36
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12MB
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(1) 1M x 36
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(1) 2M x 36
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16MB
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(1) 2M x 36
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(1) 2M x 36
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20MB
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(1) 1M x 36
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(1) 4M x 36
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24MB
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(1) 2M x 36
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(1) 4M x 36
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32MB
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(1) 4M x 36
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(1) 4M x 36
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32MB
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(1) 8M x 36
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NONE
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36MB
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(1) 1M x 36
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(1) 8M x 36
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40MB
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(1) 2M x 36
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(1) 8M x 36
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48MB
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(1) 4M x 36
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(1) 8M x 36
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64MB
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(1) 8M x 36
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(1) 8M x 36
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CACHE CONFIGURATION
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Size
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Bank 0
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TAG
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128KB
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(4) 32K x 8
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(1) 8K or (1) 32K x 8
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256KB
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(4) 64K x 8
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(1) 32K x 8
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512KB
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(4) 128K x 8
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(1) 32K x 8
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CACHE JUMPER CONFIGURATION
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Size
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J8
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128KB
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Open
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256KB
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pins 1 & 2 closed
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512KB
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pins 1 & 2, 3 & 4 closed
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CPU TYPE CONFIGURATION
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Type
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J2
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J3
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J5
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J6
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J7
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CX486SX
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2 & 3
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1 & 2
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Open
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1 & 2, 3 & 4
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3 & 4
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UMC486SX
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1 & 2
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2 & 3
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Open
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Open
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1 & 2
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80486SX
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1 & 2
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1 & 2
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Open
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2 & 3, 4 & 5
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3 & 4
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CX486DX
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2 & 3
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1 & 2
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Open
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1 & 2, 3 & 4
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3 & 4
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AM486DX
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1 & 2
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2 & 3
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Open
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Open
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1 & 2
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80486DX
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1 & 2
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1 & 2
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Open
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2 & 3, 4 & 5
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3 & 4
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CX486DX2
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2 & 3
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1 & 2
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Open
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1 & 2, 3 & 4
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3 & 4
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AM486DX2
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1 & 2
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2 & 3
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2 & 3
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Open
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1 & 2
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80486DX2
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1 & 2
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1 & 2
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Open
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2 & 3, 4 & 5
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3 & 4
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CX486DX4
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2 & 3
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1 & 2
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Open
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1 & 2, 3 & 4
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3 & 4
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AM486DX4
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1 & 2
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2 & 3
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Open
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Open
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1 & 2
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AM486DX4 (WB)
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1 & 2
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2 & 3
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2 & 3
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Open
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1 & 2
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80486DX4
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1 & 2
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1 & 2
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Open
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2 & 3, 4 & 5
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3 & 4
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P24D
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1 & 2
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1 & 2
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Open
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2 & 3, 4 & 5
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3 & 4
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P24T
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1 & 2
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1 & 2
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Open
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2 & 3, 4 & 5
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3 & 4, 5 & 6
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CXM1
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1 & 2
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1 & 2
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Open
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2 & 3, 4 & 5
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3 & 4
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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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J9
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J10
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J12
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J13
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J14
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CX486SX
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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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UMC486SX
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1 & 2, 3 & 4
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3 & 4
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Open
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Open
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Open
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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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CX486DX
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3 & 4
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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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AM486DX
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1 & 2, 3 & 4
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3 & 4
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Open
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Open
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Open
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80486DX
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3 & 4
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Open
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Open
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Open
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Open
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CX486DX2
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3 & 4
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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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AM486DX2
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1 & 2, 3 & 4
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3 & 4
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Open
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Open
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Open
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80486DX2
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3 & 4
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Open
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Open
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Open
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Open
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CX486DX4
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3 & 4
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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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AM486DX4
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1 & 2, 3 & 4
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3 & 4
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Open
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Open
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Open
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AM486DX4 (WB)
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1 & 2, 3 & 4
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3 & 4
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Open
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Open
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Open
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80486DX4
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3 & 4
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Open
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Open
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Open
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Open
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P24D
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3 & 4
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Open
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Closed
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Closed
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Closed
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P24T
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2 & 3
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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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CXM1
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3 & 4
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Open
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Closed
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Closed
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Closed
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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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J15
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J16
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J17
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J18
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J19
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J21
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CX486SX
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Open
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2 & 3
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1 & 2
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1 & 2
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2 & 3
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2 & 3
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UMC486SX
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Open
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Open
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Open
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2 & 3
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Open
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2 & 3
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80486SX
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Open
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1 & 2
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Open
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1 & 2
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Open
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2 & 3
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CX486DX
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Open
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2 & 3
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1 & 2
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1 & 2
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2 & 3
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1 & 2, 3 & 4
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AM486DX
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Open
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Open
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Open
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2 & 3
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Open
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1 & 2, 3 & 4
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80486DX
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Open
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1 & 2
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Open
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1 & 2
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Open
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1 & 2, 3 & 4
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CX486DX2
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Open
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2 & 3
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1 & 2
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1 & 2
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2 & 3
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1 & 2, 3 & 4
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AM486DX2
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Open
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Open
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Open
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2 & 3
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Open
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1 & 2, 3 & 4
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80486DX2
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Open
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1 & 2
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Open
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1 & 2
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Open
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1 & 2, 3 & 4
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CX486DX4
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Open
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2 & 3
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1 & 2
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1 & 2
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2 & 3
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1 & 2, 3 & 4
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AM486DX4
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Open
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Open
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Open
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2 & 3
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Open
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1 & 2, 3 & 4
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AM486DX4 (WB)
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Open
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Open
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Open
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2 & 3
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Open
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1 & 2, 3 & 4
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80486DX4
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Open
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1 & 2
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Open
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1 & 2
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Open
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1 & 2, 3 & 4
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P24D
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Open
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1 & 2
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Open
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1 & 2
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Open
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1 & 2, 3 & 4
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P24T
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Open
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1 & 2
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2 & 3
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1 & 2
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1 & 2
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1 & 2, 3 & 4
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CXM1
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Open
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1 & 2
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Open
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1 & 2
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Open
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1 & 2, 3 & 4
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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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J24 pins 1 & 2
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J24 pins 3 & 4
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J24 pins 5 & 6
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20MHz
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Open
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Open
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Open
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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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40MHz
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Open
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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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50MHz
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Closed
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Open
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Open
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66iMHz
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Closed
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Closed
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Closed
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75iMHz
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Open
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Open
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Closed
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80iMHz
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Open
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Closed
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Closed
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100iMHz
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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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J11
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3.3v
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pins 2 & 3 closed
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3.45v
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pins 2 & 3 closed
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4v
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pins 2 & 3 closed
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5v
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pins 1 & 2 closed
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