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SQ588
BCM ADVANCED RESEARCH, INC.
SQ588
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Processor
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Pentium
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Processor Speed
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75/90/100MHz
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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/Phoenix
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Dimensions
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330mm x 218mm
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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, PS/2 mouse interface, 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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PS/2 mouse interface
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J1
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Standby connector
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J18
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Green PC connector
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J5
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Turbo LED
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J20
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Serial port 2
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J6
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IDE interface LED
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J21
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Floppy drive interface
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J7
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Power LED & keylock
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J22
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IDE interface 1
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J8
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Reset switch
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J23
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Serial port 1
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J9
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Speaker
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J24
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Parallel port
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J10
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32-bit PCI slots
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PC1 – PC4
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IDE interface 2
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J11
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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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Flash BIOS normal operation
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J12
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Open
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Flash BIOS programming mode
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J12
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Closed
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»
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CMOS memory normal operation
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J27
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Open
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CMOS memory clear
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J27
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Closed
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»
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Factory configured - do not alter
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J28
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Open
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»
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Factory configured - do not alter
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J30
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Open
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»
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Factory configured - do not alter
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JP1
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Unidentified
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IDE interface enabled
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JP11
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Open
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IDE interface disabled
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JP11
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Closed
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SIMM CONFIGURATION
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Size
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Bank 0
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Bank 1
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2MB
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(2) 256K x 36
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None
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4MB
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(2) 512K x 36
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None
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4MB
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(2) 256K x 36
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(2) 256K x 36
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8MB
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(2) 1M x 36
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None
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8MB
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(2) 512K x 36
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(2) 512K x 36
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16MB
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(2) 2M x 36
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None
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16MB
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(2) 1M x 36
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(2) 1M x 36
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20MB
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(2) 512K x 36
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(2) 2M x 36
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32MB
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(2) 4M x 36
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None
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32MB
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(2) 2M x 36
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(2) 2M x 36
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36MB
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(2) 512K x 36
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(2) 4M x 36
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40MB
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(2) 1M x 36
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(2) 4M x 36
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48MB
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(2) 4M x 36
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(2) 2M x 36
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64MB
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(2) 4M x 36
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(2) 4M x 36
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64MB
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(2) 8M x 36
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None
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80MB
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(2) 2M x 36
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(2) 8M x 36
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128MB
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(2) 8M x 36
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(2) 8M x 36
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Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.
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SIMM JUMPER CONFIGURATION
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Size
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J26
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Single sided
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Pins 1 & 2 closed
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Double sided
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Pins 2 & 3 closed
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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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256KB
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(8) 32K x 8
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(1) 32K x 8
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512KB
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(8) 64K x 8
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(1) 32K x 8
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1MB
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(8) 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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J16
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J17
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256KB
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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512KB
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Pins 2 & 3 closed
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Pins 1 & 2 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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CPU SPEED SELECTION
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CPU speed
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Clock speed
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Multiplier
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J13
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J14
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J15
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J31
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75MHz
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50MHz
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1.5x
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Open
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Open
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Closed
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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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Closed
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Open
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Open
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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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Open
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Closed
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Open
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2 & 3
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Note: Pins designated should be in the closed position.
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