GCT-MGX Motherboard Settings and Configuration

DATAEXPERT CORPORATION

GCT-MGX

Device Type
Mainboard
Processor
CX GX
Processor Speed
120/133/150/166/180/200MHz
Chip Set
CX 5510
Video Chip Set
Cyrix integrated
Audio Chip Set
Cyrix integrated
Maximum Onboard Memory
128MB
Cache
None
BIOS
Unidentified
Dimensions
254mm x 218mm
I/O Options
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)

CONNECTIONS
Purpose
Location
Purpose
Location
ATX power connector
ATX
IR connector
IR1
Serial port 2
CN1
Speaker
JP7/pins 1/3/5/7
Serial port 1
CN2
Power LED & keylock
JP7/pins 2/4/6/8/10
IDE interface 1
CN3
Reset switch
JP7/pins 13 & 14
IDE interface 2
CN4
IDE interface LED
JP7/pins 15 & 16
Floppy drive interface
CN5
Green PC connector
JP7/pins 17 & 18
Parallel port
CN6
Green PC LED
JP7/pins 19 & 20
CPU fan power
FAN
MIDI board connector
JP9
Game interface
J5
Soft off power supply
JP11
Audio in – CD-ROM
J6
PS/2 mouse interface
JP14
Audio in – CD-ROM
J7
32-bit PCI slots
PC1 – PC3

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
JP13
Pins 1 & 2 closed

CMOS memory clear
JP13
Pins 2 & 3 closed

SIMM CONFIGURATION
Size
Bank 0
Bank 1
8MB
(2) 1M x 36
None
16MB
(2) 2M x 36
None
16MB
(2) 1M x 36
(2) 1M x 36
24MB
(2) 2M x 36
(2) 1M x 36
32MB
(2) 4M x 36
None
32MB
(2) 2M x 36
(2) 2M x 36
40MB
(2) 4M x 36
(2) 1M x 36
48MB
(2) 4M x 36
(2) 2M x 36
64MB
(2) 8M x 36
None
64MB
(2) 4M x 36
(2) 4M x 36
72MB
(2) 8M x 36
(2) 1M x 36
80MB
(2) 8M x 36
(2) 2M x 36
96MB
(2) 8M x 36
(2) 4M x 36
128MB
(2) 8M x 36
(2) 8M x 36

DIMM CONFIGURATION
Size
Bank 2
8MB
(1) 1M x 64
16MB
(1) 2M x 64
32MB
(1) 4M x 64
64MB
(1) 8M x 64
128MB
(1) 16M x 64

DIMM VOLTAGE CONFIGURATION
Voltage
JP5A
JP5B
3.3v
Pins 2 & 3 closed
Pins 2 & 3 closed
5v
Pins 1 & 2 closed
Pins 1 & 2 closed

CPU SPEED SELECTION
Speed
JP8A
JP8B
30MHz
Pins 2 & 3 closed
Pins 1 & 2 closed
33MHz
Pins 1 & 2 closed
Pins 2 & 3 closed

CPU MULTIPLIER SELECTION
Multiplier
JP1A
JP1B
4x
Pins 1 & 2 closed
Pins 1 & 2 closed
5x
Pins 2 & 3 closed
Pins 1 & 2 closed
6x
Pins 1 & 2 closed
Pins 2 & 3 closed

CPU VOLTAGE SELECTION (SINGLE)
Voltage
JP2
2.9v
Pins 3 & 4 closed
3.6v
Pins 1 & 2 closed

CPU VOLTAGE SELECTION (DUAL)
Voltage
V core
JP3
JP4
3.3v
2.9v
Pins 1 & 2 closed
Pins 1 & 2 closed
3.3v
3.6v
Pins 1 & 2 closed
Pins 1 & 2 closed
2.9v
2.9v
Pins 2 & 3 closed
Pins 2 & 3 closed
3.6v
3.6v
Pins 2 & 3 closed
Pins 2 & 3 closed

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GCT-MGX Motherboard Settings and Configuration

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Device Type	Mainboard
Processor	CX GX
Processor Speed	120/133/150/166/180/200MHz
Chip Set	CX 5510
Video Chip Set	Cyrix integrated
Audio Chip Set	Cyrix integrated
Maximum Onboard Memory	128MB
Cache	None
BIOS	Unidentified
Dimensions	254mm x 218mm
I/O Options	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)

CONNECTIONS
Purpose	Location	Purpose	Location
ATX power connector	ATX	IR connector	IR1
Serial port 2	CN1	Speaker	JP7/pins 1/3/5/7
Serial port 1	CN2	Power LED & keylock	JP7/pins 2/4/6/8/10
IDE interface 1	CN3	Reset switch	JP7/pins 13 & 14
IDE interface 2	CN4	IDE interface LED	JP7/pins 15 & 16
Floppy drive interface	CN5	Green PC connector	JP7/pins 17 & 18
Parallel port	CN6	Green PC LED	JP7/pins 19 & 20
CPU fan power	FAN	MIDI board connector	JP9
Game interface	J5	Soft off power supply	JP11
Audio in – CD-ROM	J6	PS/2 mouse interface	JP14
Audio in – CD-ROM	J7	32-bit PCI slots	PC1 – PC3

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP13	Pins 1 & 2 closed
	CMOS memory clear	JP13	Pins 2 & 3 closed

SIMM CONFIGURATION
Size	Bank 0	Bank 1
8MB	(2) 1M x 36	None
16MB	(2) 2M x 36	None
16MB	(2) 1M x 36	(2) 1M x 36
24MB	(2) 2M x 36	(2) 1M x 36
32MB	(2) 4M x 36	None
32MB	(2) 2M x 36	(2) 2M x 36
40MB	(2) 4M x 36	(2) 1M x 36
48MB	(2) 4M x 36	(2) 2M x 36
64MB	(2) 8M x 36	None
64MB	(2) 4M x 36	(2) 4M x 36
72MB	(2) 8M x 36	(2) 1M x 36
80MB	(2) 8M x 36	(2) 2M x 36
96MB	(2) 8M x 36	(2) 4M x 36
128MB	(2) 8M x 36	(2) 8M x 36

DIMM CONFIGURATION
Size	Bank 2
8MB	(1) 1M x 64
16MB	(1) 2M x 64
32MB	(1) 4M x 64
64MB	(1) 8M x 64
128MB	(1) 16M x 64

DIMM VOLTAGE CONFIGURATION
Voltage	JP5A	JP5B
3.3v	Pins 2 & 3 closed	Pins 2 & 3 closed
5v	Pins 1 & 2 closed	Pins 1 & 2 closed

CPU SPEED SELECTION
Speed	JP8A	JP8B
30MHz	Pins 2 & 3 closed	Pins 1 & 2 closed
33MHz	Pins 1 & 2 closed	Pins 2 & 3 closed

CPU MULTIPLIER SELECTION
Multiplier	JP1A	JP1B
4x	Pins 1 & 2 closed	Pins 1 & 2 closed
5x	Pins 2 & 3 closed	Pins 1 & 2 closed
6x	Pins 1 & 2 closed	Pins 2 & 3 closed

CPU VOLTAGE SELECTION (SINGLE)
Voltage	JP2
2.9v	Pins 3 & 4 closed
3.6v	Pins 1 & 2 closed

CPU VOLTAGE SELECTION (DUAL)
Voltage	V core	JP3	JP4
3.3v	2.9v	Pins 1 & 2 closed	Pins 1 & 2 closed
3.3v	3.6v	Pins 1 & 2 closed	Pins 1 & 2 closed
2.9v	2.9v	Pins 2 & 3 closed	Pins 2 & 3 closed
3.6v	3.6v	Pins 2 & 3 closed	Pins 2 & 3 closed