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GCT-MGX
DATAEXPERT CORPORATION
GCT-MGX
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Device Type
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Mainboard
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Processor
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CX GX
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Processor Speed
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120/133/150/166/180/200MHz
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Chip Set
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CX 5510
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Video Chip Set
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Cyrix integrated
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Audio Chip Set
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Cyrix integrated
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Maximum Onboard Memory
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128MB
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Cache
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None
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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), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, ATX power connector, audio in – CD-ROMs (2)
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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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ATX power connector
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ATX
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IR connector
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IR1
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Serial port 2
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CN1
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Speaker
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JP7/pins 1/3/5/7
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Serial port 1
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CN2
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Power LED & keylock
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JP7/pins 2/4/6/8/10
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IDE interface 1
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CN3
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Reset switch
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JP7/pins 13 & 14
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IDE interface 2
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CN4
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IDE interface LED
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JP7/pins 15 & 16
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Floppy drive interface
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CN5
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Green PC connector
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JP7/pins 17 & 18
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Parallel port
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CN6
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Green PC LED
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JP7/pins 19 & 20
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CPU fan power
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FAN
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MIDI board connector
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JP9
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Game interface
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J5
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Soft off power supply
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JP11
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Audio in – CD-ROM
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J6
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PS/2 mouse interface
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JP14
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Audio in – CD-ROM
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J7
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32-bit PCI slots
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PC1 – PC3
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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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CMOS memory normal operation
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JP13
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Pins 1 & 2 closed
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CMOS memory clear
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JP13
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Pins 2 & 3 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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8MB
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(2) 1M x 36
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None
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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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24MB
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(2) 2M x 36
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(2) 1M 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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40MB
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(2) 4M x 36
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(2) 1M 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) 8M x 36
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None
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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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72MB
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(2) 8M x 36
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(2) 1M x 36
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80MB
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(2) 8M x 36
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(2) 2M x 36
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96MB
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(2) 8M x 36
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(2) 4M 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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DIMM CONFIGURATION
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Size
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Bank 2
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8MB
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(1) 1M x 64
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16MB
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(1) 2M x 64
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32MB
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(1) 4M x 64
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64MB
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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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DIMM VOLTAGE CONFIGURATION
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Voltage
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JP5A
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JP5B
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3.3v
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Pins 2 & 3 closed
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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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Pins 1 & 2 closed
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CPU SPEED SELECTION
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Speed
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JP8A
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JP8B
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30MHz
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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33MHz
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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CPU MULTIPLIER SELECTION
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Multiplier
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JP1A
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JP1B
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4x
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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5x
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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6x
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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CPU VOLTAGE SELECTION (SINGLE)
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Voltage
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JP2
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2.9v
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Pins 3 & 4 closed
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3.6v
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Pins 1 & 2 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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JP4
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3.3v
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2.9v
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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3.3v
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3.6v
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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2.9v
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2.9v
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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3.6v
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3.6v
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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