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AX8158
AXIOM TECHNOLOGY, INC.
AX8158
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Processor
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Pentium
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Processor Speed
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75/90/100/120/133/166/MHz
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Chip Set
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SIS
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Video Chip Set
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None
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Maximum Onboard Memory
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128MB (EDO supported)
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Maximum Video Memory
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None
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Cache
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256/512/1024KB
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BIOS
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AMI
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Dimensions
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388mm x 122mm
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I/O Options
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Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), cache slot
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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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IDE interface LED
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CN1
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Serial port 2
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CN9
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Reset switch
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CN2
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Auxiliary keyboard connector
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CN10
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Speaker
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CN3
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PS/2 mouse interface
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CN11
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IDE interface 1
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CN5
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Serial port 1
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CN12
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IDE interface 2
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CN6
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PS/2 mouse port
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CN14
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Floppy drive interface
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CN7
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Cache slot
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SL1
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Parallel port
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CN8
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USER CONFIGURABLE SETTINGS
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Function
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Label
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Position
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»
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PCI bus clock select CPUCLK/2
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J7
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Pins 1 & 2 closed
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PCI bus clock select 32MHz
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J7
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Pins 2 & 3 closed
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»
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CPU NA# mode disabled
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J8
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Pins 1 & 2 closed
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CPU NA# mode enabled
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J8
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Pins 2 & 3 closed
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»
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CPU cache type select write back
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J9
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Pins 1 & 2 closed
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CPU cache type select write through
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J9
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Pins 2 & 3 closed
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»
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Parallel port IRQ select IRQ7
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J12
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Pins 1 & 2 closed
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Parallel port IRQ select IRQ5
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J12
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Pins 2 & 3 closed
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»
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WDT function select NMI
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J13
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Pins 1 & 2 closed
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WDT function select reset
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J13
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Pins 2 & 3 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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Bank 2
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Bank 3
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1MB
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(1) 256K x 36
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None
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None
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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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None
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None
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4MB
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(1) 256K x 36
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(1) 256K x 36
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(1) 256K x 36
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(1) 256K 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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None
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None
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4MB
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(1) 1M x 36
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None
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None
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None
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6MB
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(1) 256K x 36
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(1) 256K x 36
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(1) 512K x 36
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(1) 512K x 36
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8MB
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(1) 512K x 36
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(1) 512K x 36
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(1) 512K x 36
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(1) 512K 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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None
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None
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10MB
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(1) 256K x 36
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(1) 256K x 36
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(1) 1M x 36
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(1) 1M x 36
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12MB
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(1) 512K x 36
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(1) 512K x 36
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(1) 1M x 36
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(1) 1M 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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None
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None
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16MB
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(1) 1M x 36
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(1) 1M x 36
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(1) 1M x 36
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(1) 1M x 36
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16MB
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(1) 4M x 36
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None
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None
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None
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18MB
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(1) 256K x 36
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(1) 256K x 36
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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) 512K x 36
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(1) 512K x 36
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(1) 2M x 36
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(1) 2M x 36
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24MB
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(1) 1M x 36
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(1) 1M x 36
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(1) 2M x 36
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(1) 2M x 36
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32MB
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(1) 2M x 36
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(1) 2M x 36
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(1) 2M x 36
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(1) 2M 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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None
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None
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34MB
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(1) 256K x 36
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(1) 256K x 36
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(1) 4M x 36
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(1) 4M x 36
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36MB
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(1) 512K x 36
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(1) 512K x 36
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(1) 4M x 36
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(1) 4M x 36
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40MB
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(1) 1M x 36
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(1) 1M x 36
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(1) 4M x 36
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(1) 4M x 36
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48MB
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(1) 2M x 36
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(1) 2M x 36
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(1) 4M x 36
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(1) 4M x 36
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64MB
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(1) 4M x 36
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(1) 4M x 36
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(1) 4M x 36
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(1) 4M 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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None
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None
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66MB
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(1) 256K x 36
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(1) 256K x 36
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(1) 8M x 36
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(1) 8M x 36
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DRAM CONFIGURATION (CON’T)
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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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68MB
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(1) 512K x 36
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(1) 512K x 36
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(1) 8M x 36
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(1) 8M x 36
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72MB
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(1) 1M x 36
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(1) 1M x 36
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(1) 8M x 36
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(1) 8M x 36
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80MB
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(1) 2M x 36
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(1) 2M x 36
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(1) 8M x 36
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(1) 8M x 36
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96MB
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(1) 4M x 36
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(1) 4M x 36
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(1) 8M x 36
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(1) 8M x 36
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128MB
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(1) 8M x 36
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(1) 8M x 36
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(1) 8M x 36
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(1) 8M x 36
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Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.
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CACHE CONFIGURATION
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Size
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Bank 0
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SL1
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TAG
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256KB (A)
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(8) 32K x 8
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Not installed
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(1) 32K x 8
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256KB (B)
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None
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256KB module installed
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None
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512KB (A)
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(8) 64K x 8
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Not installed
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(1) 32K x 8
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512KB (B)
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None
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512KB module installed
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None
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1MB
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(8) 128K x 8
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Not installed
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(1) 32K x 8
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CACHE JUMPER CONFIGURATION
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Size
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J2
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J3
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256KB (A)
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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256KB (B)
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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512KB (A)
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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512KB (B)
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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1MB
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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CACHE TYPE CONFIGURATION
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Type
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J1
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Asynchronous
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Pins 1 & 2 closed
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Burst/pipeline burst
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Pins 2 & 3 closed
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CPU SPEED SELECTION
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CPU speed
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Clock speed
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Multiplier
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J5
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J6
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J10
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J11
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75MHz
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50MHz
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1.5x
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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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90MHz
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60MHz
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1.5x
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2 & 3
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2 & 3
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1 & 2
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1 & 2
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100MHz
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66MHz
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1.5x
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1 & 2
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1 & 2
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1 & 2
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1 & 2
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120MHz
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60MHz
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2x
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2 & 3
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2 & 3
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1 & 2
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2 & 3
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133MHz
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66MHz
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2x
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1 & 2
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1 & 2
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1 & 2
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2 & 3
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166MHz
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66MHz
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2.5x
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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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Note: Pins designated should be in the closed position.
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CPU VOLTAGE SELECTION
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Voltage
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J4
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J14
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3.36v
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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3.53v
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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