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P5TX-B
ELITEGROUP COMPUTER SYSTEMS, INC.
P5TX-B
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Processor
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AMD, Cyrix, Pentium
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Processor Speed
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75/90/100/120/133/150/166/200/233MHz
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Chip Set
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Intel
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Video Chip Set
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None
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Maximum Onboard Memory
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256MB (EDO supported)
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Maximum Video Memory
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None
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Cache
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256/512KB
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BIOS
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Award
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Dimensions
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281mm x 208mm
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I/O Options
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32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2), IR connectors (2), USB connector
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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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USB connector
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J5
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Turbo LED
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J16/pins 2 & 3
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IDE interface 2
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J6
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Green PC connector
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J16/pins 4 & 5
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IDE interface 1
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J7
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Reset switch
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J16/pins 9 & 10
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Serial port
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J8
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Power LED & keylock
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J16/pins 11 - 15
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Serial port
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J9
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Speaker
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J16/pins 17 - 20
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IR connector (Fast)
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J10
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Green PC LED
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J18
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IR connector
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J11
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IDE interface LED
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J19
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Parallel port
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J12
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Chassis fan power
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J20
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Floppy drive interface
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J13
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32-bit PCI slots
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PC1 – PC4
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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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Factory configured - do not alter
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J1
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Unidentified
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»
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Factory configured - do not alter
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J2
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Unidentified
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»
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CMOS memory normal operation
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JP2
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Pins 2 & 3 closed
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CMOS memory clear
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JP2
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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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4MB
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(2) 512K x 32
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None
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8MB
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(2) 512K x 32
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(2) 512K x 32
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8MB
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(2) 1M x 32
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None
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12MB
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(2) 1M x 32
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(2) 512K x 32
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16MB
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(2) 2M x 32
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None
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16MB
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(2) 1M x 32
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(2) 1M x 32
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20MB
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(2) 2M x 32
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(2) 512K x 32
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24MB
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(2) 2M x 32
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(2) 1M x 32
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32MB
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(2) 4M x 32
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None
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32MB
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(2) 2M x 32
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(2) 2M x 32
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36MB
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(2) 4M x 32
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(2) 512K x 32
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40MB
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(2) 4M x 32
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(2) 1M x 32
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48MB
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(2) 4M x 32
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(2) 2M x 32
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64MB
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(2) 8M x 32
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None
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64MB
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(2) 4M x 32
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(2) 4M x 32
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68MB
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(2) 8M x 32
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(2) 512K x 32
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72MB
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(2) 8M x 32
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(2) 1M x 32
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80MB
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(2) 8M x 32
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(2) 2M x 32
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96MB
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(2) 8M x 32
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(2) 4M x 32
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128MB
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(2) 8M x 32
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(2) 8M x 32
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128MB
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(2) 16M x 32
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None
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132MB
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(2) 16M x 32
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(2) 512K x 32
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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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136MB
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(2) 16M x 32
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(2) 1M x 32
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144MB
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(2) 16M x 32
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(2) 2M x 32
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160MB
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(2) 16M x 32
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(2) 4M x 32
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192MB
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(2) 16M x 32
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(2) 8M x 32
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256MB
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(2) 16M x 32
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(2) 16M x 32
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Note: Board accepts EDO memory. The location of banks 0 & 1 are unidentified.
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DIMM CONFIGURATION
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Size
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Bank 2
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Bank 3
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8MB
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(1) 1M x 64
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None
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16MB
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(1) 2M x 64
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None
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16MB
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(1) 1M x 64
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(1) 1M x 64
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24MB
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(1) 2M x 64
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(1) 1M x 64
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32MB
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(1) 4M x 64
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None
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32MB
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(1) 2M x 64
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(1) 2M x 64
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40MB
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(1) 4M x 64
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(1) 1M x 64
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48MB
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(1) 4M x 64
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(1) 2M x 64
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64MB
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(1) 8M x 64
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None
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64MB
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(1) 4M x 64
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(1) 4M x 64
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72MB
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(1) 8M x 64
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(1) 1M x 64
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80MB
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(1) 8M x 64
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(1) 2M x 64
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96MB
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(1) 8M x 64
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(1) 4M x 64
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128MB
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(1) 8M x 64
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(1) 8M x 64
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128MB
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(1) 16M x 64
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None
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136MB
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(1) 16M x 64
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(1) 1M x 64
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144MB
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(1) 16M x 64
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(1) 2M x 64
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160MB
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(1) 16M x 64
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(1) 4M x 64
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192MB
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(1) 16M x 64
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(1) 8M x 64
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256MB
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(1) 16M x 64
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(1) 16M x 64
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Note: The location of banks 2 & 3 are unidentified.
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CACHE CONFIGURATION
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Size
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Bank 0
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256KB
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(2) 32K x 32
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512KB
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(2) 64K x 32
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CPU SPEED SELECTION (CYRIX)
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CPU speed
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Clock speed
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Multiplier
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JP1
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120MHz
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50MHz
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2x
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1 & 3, 4 & 6, 11 & 13, 19 & 21, 20 & 22
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133MHz
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55MHz
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2x
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1 & 3, 4 & 6, 11 & 13, 17 & 19, 20 & 22
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150MHz
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60MHz
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2x
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1 & 3, 4 & 6, 9 & 11, 19 & 21, 20 & 22
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166MHz
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66MHz
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2x
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1 & 3, 4 & 6, 11 & 13, 19 & 21, 18 & 20
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Note: Pins designated should be in the closed position.
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CPU SPEED SELECTION (AMD)
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CPU speed
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Clock speed
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Multiplier
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JP1
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75MHz
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50MHz
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1.5x
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1 & 3, 2 & 4, 11 & 13, 19 & 21, 20 & 22
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90MHz
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60MHz
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1.5x
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1 & 3, 2 & 4, 9 & 11, 19 & 21, 20 & 22
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100MHz
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66MHz
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1.5x
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1 & 3, 2 & 4, 11 & 13, 19 & 21, 18 & 20
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120MHz
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60MHz
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2x
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1 & 3, 4 & 6, 9 & 11, 19 & 21, 20 & 22
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133MHz
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66MHz
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2x
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1 & 3, 4 & 6, 11 & 13, 19 & 21, 18 & 20
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166MHz
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66MHz
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2.5x
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3 & 5, 4 & 6, 9 & 11, 19 & 21, 20 & 22
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Note: Pins designated should be in the closed position.
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CPU SPEED SELECTION (INTEL)
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CPU speed
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Clock speed
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Multiplier
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JP1
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75MHz
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50MHz
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1.5x
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1 & 3, 2 & 4, 11 & 13, 19 & 21, 20 & 22
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90MHz
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60MHz
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1.5x
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1 & 3, 2 & 4, 9 & 11, 19 & 21, 20 & 22
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100MHz
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66MHz
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1.5x
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1 & 3, 2 & 4, 11 & 13, 19 & 21, 18 & 20
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120MHz
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60MHz
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2x
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1 & 3, 4 & 6, 11 & 13, 19 & 21, 20 & 22
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133MHz
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66MHz
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2x
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1 & 3, 4 & 6, 11 & 13, 19 & 21, 18 & 20
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150MHz
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60MHz
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2.5x
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3 & 5, 4 & 6, 9 & 11, 19 & 21, 20 & 22
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166MHz
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66MHz
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2.5x
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3 & 5, 4 & 6, 11 & 13, 19 & 21, 18 & 20
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200MHz
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66MHz
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3x
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2 & 4, 3 & 5, 11 & 13, 19 & 21, 18 & 20
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233MHz
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66MHz
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3.5x
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1 & 3, 2 & 4, 11 & 13, 19 & 21, 18 & 20
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Note: Pins designated should be in the closed position.
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CPU VOLTAGE SELECTION (SINGLE)
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Voltage
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JP3
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3.3v
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Pins 3 & 4, 9 & 10 closed
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3.52v
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Pins 1 & 2, 9 & 10 closed
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CPU VOLTAGE SELECTION (DUAL)
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Voltage
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V core
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JP3
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3.3v
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2.5v
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Pins 1 & 2, 11 & 12 closed
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3.3v
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2.8v
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Pins 1 & 2, 9 & 10 closed
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3.3v
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2.9v
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Pins 1 & 2, 7 & 8 closed
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