GA-5AX (REV. 1.0) Motherboard Settings and Configuration

GIGA-BYTE TECHNOLOGY CO., LTD.

GA-5AX (REV. 1.0)

Device Type
Mainboard
Processor
CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/
CX M2/IDT C6/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed
100/120/133/150/166/200/233MHz
Chip Set
ALI Aladdin V
Video Chip Set
None
Maximum Onboard Memory
768MB (SDRAM supported)
Maximum Video Memory
None
Cache
512KB
BIOS
Award
Dimensions
305mm x 170mm
I/O Options
32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), USB connectors (2), ATX power connector, AGP slot, wake on LAN connector

CONNECTIONS
Purpose
Location
Purpose
Location
AGP slot
AGP
Wake on LAN connector
JP8
ATX power connector
ATX
Green PC LED
JP9/pins 1 & 10
CPU fan power
C2
Reset switch
JP9/pins 2 & 3
IDE interface 1
CN1
Speaker
JP9/pins 4 - 7
Floppy drive interface
CN2
IDE interface LED
JP9/pins 8 & 17
IDE interface 2
CN3
Green PC connector
JP9/pins 9 & 18
USB connector 1
CN4
Soft off power supply
JP9/pins 12 & 13
USB connector 2
CN4A
Power LED
JP9/pins 14 - 16
Serial port 2
CN5
PS/2 mouse port
JP11
Serial port 1
CN6
32-bit PCI slots
PC1 – PC4
Parallel port
CN7

USER CONFIGURABLE SETTINGS
Function
Label
Position

Keyboard power on enabled
JP10
Pins 1 & 2 closed

Keyboard power on disabled
JP10
Pins 2 & 3 closed

DIMM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
8MB
(1) 1M x 64
None
None
16MB
(1) 2M x 64
None
None
16MB
(1) 1M x 64
(1) 1M x 64
None
24MB
(1) 2M x 64
(1) 1M x 64
None
24MB
(1) 1M x 64
(1) 1M x 64
(1) 1M x 64
32MB
(1) 4M x 64
None
None
32MB
(1) 2M x 64
(1) 1M x 64
(1) 1M x 64
32MB
(1) 2M x 64
(1) 2M x 64
None
40MB
(1) 4M x 64
(1) 1M x 64
None
40MB
(1) 2M x 64
(1) 2M x 64
(1) 1M x 64
48MB
(1) 4M x 64
(1) 1M x 64
(1) 1M x 64
48MB
(1) 4M x 64
(1) 2M x 64
None
48MB
(1) 2M x 64
(1) 2M x 64
(1) 2M x 64
56MB
(1) 4M x 64
(1) 2M x 64
(1) 1M x 64
64MB
(1) 8M x 64
None
None

DIMM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
64MB
(1) 4M x 64
(1) 2M x 64
(1) 2M x 64
64MB
(1) 4M x 64
(1) 4M x 64
None
72MB
(1) 8M x 64
(1) 1M x 64
None
72MB
(1) 4M x 64
(1) 4M x 64
(1) 1M x 64
80MB
(1) 8M x 64
(1) 1M x 64
(1) 1M x 64
80MB
(1) 8M x 64
(1) 2M x 64
None
80MB
(1) 4M x 64
(1) 4M x 64
(1) 2M x 64
88MB
(1) 8M x 64
(1) 2M x 64
(1) 1M x 64
96MB
(1) 8M x 64
(1) 2M x 64
(1) 2M x 64
96MB
(1) 8M x 64
(1) 4M x 64
None
96MB
(1) 4M x 64
(1) 4M x 64
(1) 4M x 64
104MB
(1) 8M x 64
(1) 4M x 64
(1) 1M x 64
112MB
(1) 8M x 64
(1) 4M x 64
(1) 2M x 64
128MB
(1) 16M x 64
None
None
128MB
(1) 8M x 64
(1) 4M x 64
(1) 4M x 64
128MB
(1) 8M x 64
(1) 8M x 64
None
136MB
(1) 16M x 64
(1) 1M x 64
None
136MB
(1) 8M x 64
(1) 8M x 64
(1) 1M x 64
144MB
(1) 16M x 64
(1) 1M x 64
(1) 1M x 64
144MB
(1) 16M x 64
(1) 2M x 64
None
144MB
(1) 8M x 64
(1) 8M x 64
(1) 2M x 64
152MB
(1) 16M x 64
(1) 2M x 64
(1) 1M x 64
160MB
(1) 16M x 64
(1) 2M x 64
(1) 2M x 64
160MB
(1) 16M x 64
(1) 4M x 64
None
160MB
(1) 8M x 64
(1) 8M x 64
(1) 4M x 64
168MB
(1) 16M x 64
(1) 4M x 64
(1) 1M x 64
176MB
(1) 16M x 64
(1) 4M x 64
(1) 2M x 64
192MB
(1) 16M x 64
(1) 4M x 64
(1) 4M x 64
192MB
(1) 16M x 64
(1) 8M x 64
None
192MB
(1) 8M x 64
(1) 8M x 64
(1) 8M x 64
200MB
(1) 16M x 64
(1) 8M x 64
(1) 1M x 64
208MB
(1) 16M x 64
(1) 8M x 64
(1) 2M x 64
224MB
(1) 16M x 64
(1) 8M x 64
(1) 4M x 64
256MB
(1) 32M x 64
None
None

DIMM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
256MB
(1) 16M x 64
(1) 8M x 64
(1) 8M x 64
264MB
(1) 32M x 64
(1) 1M x 64
None
272MB
(1) 32M x 64
(1) 1M x 64
(1) 1M x 64
272MB
(1) 32M x 64
(1) 2M x 64
None
288MB
(1) 32M x 64
(1) 2M x 64
(1) 2M x 64
288MB
(1) 32M x 64
(1) 4M x 64
None
320MB
(1) 32M x 64
(1) 4M x 64
(1) 4M x 64
320MB
(1) 32M x 64
(1) 8M x 64
None
384MB
(1) 32M x 64
(1) 8M x 64
(1) 8M x 64
384MB
(1) 32M x 64
(1) 16M x 64
None
384MB
(1) 16M x 64
(1) 16M x 64
(1) 16M x 64
384MB
(1) 16M x 64
(1) 16M x 64
(1) 16M x 64
512MB
(1) 32M x 64
(1) 16M x 64
(1) 16M x 64
512MB
(1) 32M x 64
(1) 32M x 64
None
768MB
(1) 32M x 64
(1) 32M x 64
(1) 32M x 64
Note: Board accepts SDRAM memory.

CACHE CONFIGURATION
Size
Bank 0
512KB
(1) 64K x 64

CPU SPEED SELECTION (CX 6X86)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
200MHz
75MHz
2x
1 & 2
Off
On
Off
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
200MHz
75MHz
2x
1 & 2
Off
On
Off
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
166MHz
66MHz
2x
2 & 3
Off
On
Off
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86L)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
166MHz
66MHz
2x
2 & 3
Off
On
Off
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
166MHz
66MHz
2x
2 & 3
Off
On
Off
Off
200MHz
75MHz
2x
1 & 2
Off
On
Off
Off
200MHz
66MHz
2.5x
2 & 3
Off
On
On
Off
233MHz
66MHz
3x
2 & 3
Off
Off
On
Off
233MHz
75MHz
2.5x
1 & 2
Off
On
On
Off
233MHz
83MHz
2x
2 & 3
On
On
Off
Off
266MHz
66MHz
3.5x
2 & 3
Off
Off
Off
Off
266MHz
75MHz
3x
1 & 2
Off
Off
On
Off
266MHz
83MHz
2.5x
2 & 3
On
On
On
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86MX)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
166MHz
66MHz
2x
2 & 3
Off
On
Off
Off
200MHz
75MHz
2x
1 & 2
Off
On
Off
Off
200MHz
66MHz
2.5x
2 & 3
Off
On
On
Off
233MHz
66MHz
3x
2 & 3
Off
Off
On
Off
233MHz
75MHz
2.5x
1 & 2
Off
On
On
Off
233MHz
83MHz
2x
2 & 3
On
On
Off
Off
266MHz
66MHz
3.5x
2 & 3
Off
Off
Off
Off
266MHz
75MHz
3x
1 & 2
Off
Off
On
Off
266MHz
83MHz
2.5x
2 & 3
On
On
On
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX M II)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
300MHz
66MHz
3.5x
1 & 2
Off
Off
Off
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IDT C6)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
200MHz
66MHz
3x
2 & 3
Off
Off
On
Off
225MHz
75MHz
3x
1 & 2
Off
Off
On
Off
266MHz
66MHz
4x
2 & 3
Off
On
Off
On
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
133MHz
66MHz
2x
2 & 3
Off
On
Off
Off
166MHz
66MHz
2.5x
2 & 3
Off
On
On
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
166MHz
66MHz
2.5x
2 & 3
Off
On
On
Off
200MHz
66MHz
3x
2 & 3
Off
Off
On
Off
233MHz
66MHz
3.5x
2 & 3
Off
Off
Off
Off
266MHz
66MHz
4x
2 & 3
Off
On
Off
On
266MHz
100MHz
2.5x
1 & 2
On
On
On
Off
300MHz
66MHz
4.5x
2 & 3
Off
On
On
On
300MHz
100MHz
3x
1 & 2
On
Off
On
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
100MHz
66MHz
1.5x
2 & 3
Off
Off
Off
Off
133MHz
66MHz
2x
2 & 3
Off
On
Off
Off
166MHz
66MHz
2.5x
2 & 3
Off
On
On
Off
200MHz
66MHz
3x
2 & 3
Off
Off
On
Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed
Clock speed
Multiplier
JP4
S1/1
S1/2
S1/3
S1/8
166MHz
66MHz
2.5x
2 & 3
Off
On
On
Off
200MHz
66MHz
3x
2 & 3
Off
Off
On
Off
233MHz
66MHz
3.5x
2 & 3
Off
Off
Off
Off
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
S1/4
S1/5
S1/6
S1/7
Auto
Off
Off
Off
On
2.0
Off
Off
Off
Off
2.1
Off
Off
On
Off
2.2
Off
On
Off
Off
2.3
Off
On
On
Off
2.4
On
Off
Off
Off
2.5
On
Off
On
Off
2.6
On
On
Off
Off
2.7
On
On
On
Off
2.8
Off
Off
Off
On
2.9
Off
Off
On
On
3.0
Off
On
Off
On
3.1
Off
On
On
On
3.2
On
Off
Off
On
3.3
On
Off
On
On
3.4
On
On
Off
On
3.5
On
On
On
On

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Device Type	Mainboard
Processor	CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/ CX M2/IDT C6/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed	100/120/133/150/166/200/233MHz
Chip Set	ALI Aladdin V
Video Chip Set	None
Maximum Onboard Memory	768MB (SDRAM supported)
Maximum Video Memory	None
Cache	512KB
BIOS	Award
Dimensions	305mm x 170mm
I/O Options	32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), USB connectors (2), ATX power connector, AGP slot, wake on LAN connector

CONNECTIONS
Purpose	Location	Purpose	Location
AGP slot	AGP	Wake on LAN connector	JP8
ATX power connector	ATX	Green PC LED	JP9/pins 1 & 10
CPU fan power	C2	Reset switch	JP9/pins 2 & 3
IDE interface 1	CN1	Speaker	JP9/pins 4 - 7
Floppy drive interface	CN2	IDE interface LED	JP9/pins 8 & 17
IDE interface 2	CN3	Green PC connector	JP9/pins 9 & 18
USB connector 1	CN4	Soft off power supply	JP9/pins 12 & 13
USB connector 2	CN4A	Power LED	JP9/pins 14 - 16
Serial port 2	CN5	PS/2 mouse port	JP11
Serial port 1	CN6	32-bit PCI slots	PC1 – PC4
Parallel port	CN7

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Keyboard power on enabled	JP10	Pins 1 & 2 closed
	Keyboard power on disabled	JP10	Pins 2 & 3 closed

DIMM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
8MB	(1) 1M x 64	None	None
16MB	(1) 2M x 64	None	None
16MB	(1) 1M x 64	(1) 1M x 64	None
24MB	(1) 2M x 64	(1) 1M x 64	None
24MB	(1) 1M x 64	(1) 1M x 64	(1) 1M x 64
32MB	(1) 4M x 64	None	None
32MB	(1) 2M x 64	(1) 1M x 64	(1) 1M x 64
32MB	(1) 2M x 64	(1) 2M x 64	None
40MB	(1) 4M x 64	(1) 1M x 64	None
40MB	(1) 2M x 64	(1) 2M x 64	(1) 1M x 64
48MB	(1) 4M x 64	(1) 1M x 64	(1) 1M x 64
48MB	(1) 4M x 64	(1) 2M x 64	None
48MB	(1) 2M x 64	(1) 2M x 64	(1) 2M x 64
56MB	(1) 4M x 64	(1) 2M x 64	(1) 1M x 64
64MB	(1) 8M x 64	None	None

DIMM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2
64MB	(1) 4M x 64	(1) 2M x 64	(1) 2M x 64
64MB	(1) 4M x 64	(1) 4M x 64	None
72MB	(1) 8M x 64	(1) 1M x 64	None
72MB	(1) 4M x 64	(1) 4M x 64	(1) 1M x 64
80MB	(1) 8M x 64	(1) 1M x 64	(1) 1M x 64
80MB	(1) 8M x 64	(1) 2M x 64	None
80MB	(1) 4M x 64	(1) 4M x 64	(1) 2M x 64
88MB	(1) 8M x 64	(1) 2M x 64	(1) 1M x 64
96MB	(1) 8M x 64	(1) 2M x 64	(1) 2M x 64
96MB	(1) 8M x 64	(1) 4M x 64	None
96MB	(1) 4M x 64	(1) 4M x 64	(1) 4M x 64
104MB	(1) 8M x 64	(1) 4M x 64	(1) 1M x 64
112MB	(1) 8M x 64	(1) 4M x 64	(1) 2M x 64
128MB	(1) 16M x 64	None	None
128MB	(1) 8M x 64	(1) 4M x 64	(1) 4M x 64
128MB	(1) 8M x 64	(1) 8M x 64	None
136MB	(1) 16M x 64	(1) 1M x 64	None
136MB	(1) 8M x 64	(1) 8M x 64	(1) 1M x 64
144MB	(1) 16M x 64	(1) 1M x 64	(1) 1M x 64
144MB	(1) 16M x 64	(1) 2M x 64	None
144MB	(1) 8M x 64	(1) 8M x 64	(1) 2M x 64
152MB	(1) 16M x 64	(1) 2M x 64	(1) 1M x 64
160MB	(1) 16M x 64	(1) 2M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 4M x 64	None
160MB	(1) 8M x 64	(1) 8M x 64	(1) 4M x 64
168MB	(1) 16M x 64	(1) 4M x 64	(1) 1M x 64
176MB	(1) 16M x 64	(1) 4M x 64	(1) 2M x 64
192MB	(1) 16M x 64	(1) 4M x 64	(1) 4M x 64
192MB	(1) 16M x 64	(1) 8M x 64	None
192MB	(1) 8M x 64	(1) 8M x 64	(1) 8M x 64
200MB	(1) 16M x 64	(1) 8M x 64	(1) 1M x 64
208MB	(1) 16M x 64	(1) 8M x 64	(1) 2M x 64
224MB	(1) 16M x 64	(1) 8M x 64	(1) 4M x 64
256MB	(1) 32M x 64	None	None

CPU SPEED SELECTION (CX 6X86)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
200MHz	75MHz	2x	1 & 2	Off	On	Off	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
200MHz	75MHz	2x	1 & 2	Off	On	Off	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
166MHz	66MHz	2x	2 & 3	Off	On	Off	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86L)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
166MHz	66MHz	2x	2 & 3	Off	On	Off	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
166MHz	66MHz	2x	2 & 3	Off	On	Off	Off
200MHz	75MHz	2x	1 & 2	Off	On	Off	Off
200MHz	66MHz	2.5x	2 & 3	Off	On	On	Off
233MHz	66MHz	3x	2 & 3	Off	Off	On	Off
233MHz	75MHz	2.5x	1 & 2	Off	On	On	Off
233MHz	83MHz	2x	2 & 3	On	On	Off	Off
266MHz	66MHz	3.5x	2 & 3	Off	Off	Off	Off
266MHz	75MHz	3x	1 & 2	Off	Off	On	Off
266MHz	83MHz	2.5x	2 & 3	On	On	On	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86MX)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
166MHz	66MHz	2x	2 & 3	Off	On	Off	Off
200MHz	75MHz	2x	1 & 2	Off	On	Off	Off
200MHz	66MHz	2.5x	2 & 3	Off	On	On	Off
233MHz	66MHz	3x	2 & 3	Off	Off	On	Off
233MHz	75MHz	2.5x	1 & 2	Off	On	On	Off
233MHz	83MHz	2x	2 & 3	On	On	Off	Off
266MHz	66MHz	3.5x	2 & 3	Off	Off	Off	Off
266MHz	75MHz	3x	1 & 2	Off	Off	On	Off
266MHz	83MHz	2.5x	2 & 3	On	On	On	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX M II)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
300MHz	66MHz	3.5x	1 & 2	Off	Off	Off	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IDT C6)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
200MHz	66MHz	3x	2 & 3	Off	Off	On	Off
225MHz	75MHz	3x	1 & 2	Off	Off	On	Off
266MHz	66MHz	4x	2 & 3	Off	On	Off	On
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
133MHz	66MHz	2x	2 & 3	Off	On	Off	Off
166MHz	66MHz	2.5x	2 & 3	Off	On	On	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
166MHz	66MHz	2.5x	2 & 3	Off	On	On	Off
200MHz	66MHz	3x	2 & 3	Off	Off	On	Off
233MHz	66MHz	3.5x	2 & 3	Off	Off	Off	Off
266MHz	66MHz	4x	2 & 3	Off	On	Off	On
266MHz	100MHz	2.5x	1 & 2	On	On	On	Off
300MHz	66MHz	4.5x	2 & 3	Off	On	On	On
300MHz	100MHz	3x	1 & 2	On	Off	On	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
100MHz	66MHz	1.5x	2 & 3	Off	Off	Off	Off
133MHz	66MHz	2x	2 & 3	Off	On	Off	Off
166MHz	66MHz	2.5x	2 & 3	Off	On	On	Off
200MHz	66MHz	3x	2 & 3	Off	Off	On	Off
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed	Clock speed	Multiplier	JP4	S1/1	S1/2	S1/3	S1/8
166MHz	66MHz	2.5x	2 & 3	Off	On	On	Off
200MHz	66MHz	3x	2 & 3	Off	Off	On	Off
233MHz	66MHz	3.5x	2 & 3	Off	Off	Off	Off
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage	S1/4	S1/5	S1/6	S1/7
Auto	Off	Off	Off	On
2.0	Off	Off	Off	Off
2.1	Off	Off	On	Off
2.2	Off	On	Off	Off
2.3	Off	On	On	Off
2.4	On	Off	Off	Off
2.5	On	Off	On	Off
2.6	On	On	Off	Off
2.7	On	On	On	Off
2.8	Off	Off	Off	On
2.9	Off	Off	On	On
3.0	Off	On	Off	On
3.1	Off	On	On	On
3.2	On	Off	Off	On
3.3	On	Off	On	On
3.4	On	On	Off	On
3.5	On	On	On	On