GA-586MS Motherboard Settings and Configuration

GIGA-BYTE TECHNOLOGY CO., LTD.

GA-586MS

Processor
CX M1/AM K5/Pentium
Processor Speed
75/90/100/120/125/133/150/166/180/200MHz
Chip Set
SIS
Video Chip Set
Unidentified
Maximum Onboard Memory
512MB (EDO supported)
Maximum Video Memory
Unidentified
Cache
256/512KB
BIOS
Award
Dimensions
305mm x 244mm
I/O Options
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, IR connector, ATX power connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
ATX power connector
ATX
Reset switch
J14
VGA port
CN1
Speaker
J17
Parallel port
CN2
Chassis fan power
JP2
PS/2 mouse port
CN3
Turbo switch
J20
Serial port 1
CN4
Turbo LED
J21
Serial port 2
CN5
Keylock
J26
IDE interface 1
CN6
Green PC LED
JP6
IDE interface 2
CN7
Soft off power supply
JP11
Floppy drive interface
CN8
IDE interface LED
JP14
IR connector
J11
Green PC connector
JP37
Power LED
J12
32-bit PCI slots
PC1 – PC3
Note: The location of J26 is unidentified.

USER CONFIGURABLE SETTINGS
Function
Label
Position
?
Factory configured - do not alter
JP19
Unidentified

DRAM 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
128MB
(2) 16M x 36
None
136MB
(2) 16M x 36
(2) 1M x 36
144MB
(2) 16M x 36
(2) 2M x 36
160MB
(2) 16M x 36
(2) 4M x 36
192MB
(2) 16M x 36
(2) 8M x 36
256MB
(2) 16M x 36
(2) 16M x 36
256MB
(2) 32M x 36
None
264MB
(2) 32M x 36
(2) 1M x 36
272MB
(2) 32M x 36
(2) 2M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
288MB
(2) 32M x 36
(2) 4M x 36
320MB
(2) 32M x 36
(2) 8M x 36
384MB
(2) 32M x 36
(2) 16M x 36
512MB
(2) 32M x 36
(2) 32M x 36
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Size
Bank 0
256KB
(2) 32K x 32
512KB
(2) 64K x 32
Note: The size of the TAG is unidentified.

VIDEO MEMORY CONFIGURATION
Note: The size and location of the video memory is unidentified.

CPU SPEED SELECTION (CYRIX)
CPU speed
Clock speed
Multiplier
JP1
JP5
120MHz
50MHz
2x
4 & 7, 5 & 8, 6 & 9
3 & 4
133MHz
55MHz
2x
4 & 7, 5 & 8, 6 & 9
3 & 4
150MHz
60MHz
2x
4 & 7, 5 & 8, 6 & 9
3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CYRIX, CON’T)
CPU speed
Clock speed
Multiplier
JP7
JP8
JP35
120MHz
50MHz
2x
1 & 2
1 & 2
1 & 2
133MHz
55MHz
2x
2 & 3
2 & 3
1 & 2
150MHz
60MHz
2x
2 & 3
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD)
CPU speed
Clock speed
Multiplier
JP1
JP5
75MHz
50MHz
1.5x
4 & 7, 5 & 8, 6 & 9
Open
90MHz
60MHz
1.5x
4 & 7, 5 & 8, 6 & 9
Open
100MHz
66MHz
1.5x
4 & 7, 5 & 8, 6 & 9
Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD, CON’T)
CPU speed
Clock speed
Multiplier
JP7
JP8
JP35
75MHz
50MHz
1.5x
1 & 2
1 & 2
1 & 2
90MHz
60MHz
1.5x
2 & 3
1 & 2
1 & 2
100MHz
66MHz
1.5x
1 & 2
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed
Clock speed
Multiplier
JP1
JP5
75MHz
50MHz
1.5x
4 & 7, 5 & 8, 6 & 9
Open
90MHz
60MHz
1.5x
4 & 7, 5 & 8, 6 & 9
Open
100MHz
66MHz
1.5x
4 & 7, 5 & 8, 6 & 9
Open
120MHz
60MHz
2x
4 & 7, 5 & 8, 6 & 9
3 & 4
125MHz
50MHz
2.5x
4 & 7, 5 & 8, 6 & 9
1 & 2, 3 & 4
133MHz
66MHz
2x
4 & 7, 5 & 8, 6 & 9
3 & 4
150MHz
60MHz
2.5x
4 & 7, 5 & 8, 6 & 9
1 & 2, 3 & 4
150MHz (P55C)
60MHz
2.5x
1 & 4, 2 & 5, 3 & 6
1 & 2, 3 & 4
166MHz
66MHz
2.5x
4 & 7, 5 & 8, 6 & 9
1 & 2, 3 & 4
166MHz (P55C)
66MHz
2.5x
1 & 4, 2 & 5, 3 & 6
1 & 2, 3 & 4
180MHz
60MHz
3x
4 & 7, 5 & 8, 6 & 9
1 & 2
200MHz
66MHz
3x
4 & 7, 5 & 8, 6 & 9
1 & 2
200MHz (P55C)
66MHz
3x
1 & 4, 2 & 5, 3 & 6
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL, CON’T)
CPU speed
Clock speed
Multiplier
JP7
JP8
JP35
75MHz
50MHz
1.5x
1 & 2
1 & 2
1 & 2
90MHz
60MHz
1.5x
2 & 3
1 & 2
1 & 2
100MHz
66MHz
1.5x
1 & 2
2 & 3
1 & 2
120MHz
60MHz
2x
2 & 3
1 & 2
1 & 2
125MHz
50MHz
2.5x
1 & 2
1 & 2
1 & 2
133MHz
66MHz
2x
1 & 2
2 & 3
1 & 2
150MHz
60MHz
2.5x
2 & 3
1 & 2
1 & 2
150MHz (P55C)
60MHz
2.5x
2 & 3
1 & 2
1 & 2
166MHz
66MHz
2.5x
1 & 2
2 & 3
1 & 2
166MHz (P55C)
66MHz
2.5x
1 & 2
2 & 3
1 & 2
180MHz
60MHz
3x
2 & 3
1 & 2
1 & 2
200MHz
66MHz
3x
1 & 2
2 & 3
1 & 2
200MHz (P55C)
66MHz
3x
1 & 2
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

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Processor	CX M1/AM K5/Pentium
Processor Speed	75/90/100/120/125/133/150/166/180/200MHz
Chip Set	SIS
Video Chip Set	Unidentified
Maximum Onboard Memory	512MB (EDO supported)
Maximum Video Memory	Unidentified
Cache	256/512KB
BIOS	Award
Dimensions	305mm x 244mm
I/O Options	32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, IR connector, ATX power connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
ATX power connector	ATX	Reset switch	J14
VGA port	CN1	Speaker	J17
Parallel port	CN2	Chassis fan power	JP2
PS/2 mouse port	CN3	Turbo switch	J20
Serial port 1	CN4	Turbo LED	J21
Serial port 2	CN5	Keylock	J26
IDE interface 1	CN6	Green PC LED	JP6
IDE interface 2	CN7	Soft off power supply	JP11
Floppy drive interface	CN8	IDE interface LED	JP14
IR connector	J11	Green PC connector	JP37
Power LED	J12	32-bit PCI slots	PC1 – PC3
Note: The location of J26 is unidentified.

USER CONFIGURABLE SETTINGS
Function		Label	Position
?	Factory configured - do not alter	JP19	Unidentified

DRAM 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
128MB	(2) 16M x 36	None
136MB	(2) 16M x 36	(2) 1M x 36
144MB	(2) 16M x 36	(2) 2M x 36
160MB	(2) 16M x 36	(2) 4M x 36
192MB	(2) 16M x 36	(2) 8M x 36
256MB	(2) 16M x 36	(2) 16M x 36
256MB	(2) 32M x 36	None
264MB	(2) 32M x 36	(2) 1M x 36
272MB	(2) 32M x 36	(2) 2M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
288MB	(2) 32M x 36	(2) 4M x 36
320MB	(2) 32M x 36	(2) 8M x 36
384MB	(2) 32M x 36	(2) 16M x 36
512MB	(2) 32M x 36	(2) 32M x 36
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Size	Bank 0
256KB	(2) 32K x 32
512KB	(2) 64K x 32
Note: The size of the TAG is unidentified.

CPU SPEED SELECTION (CYRIX)
CPU speed	Clock speed	Multiplier	JP1	JP5
120MHz	50MHz	2x	4 & 7, 5 & 8, 6 & 9	3 & 4
133MHz	55MHz	2x	4 & 7, 5 & 8, 6 & 9	3 & 4
150MHz	60MHz	2x	4 & 7, 5 & 8, 6 & 9	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CYRIX, CON’T)
CPU speed	Clock speed	Multiplier	JP7	JP8	JP35
120MHz	50MHz	2x	1 & 2	1 & 2	1 & 2
133MHz	55MHz	2x	2 & 3	2 & 3	1 & 2
150MHz	60MHz	2x	2 & 3	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD)
CPU speed	Clock speed	Multiplier	JP1	JP5
75MHz	50MHz	1.5x	4 & 7, 5 & 8, 6 & 9	Open
90MHz	60MHz	1.5x	4 & 7, 5 & 8, 6 & 9	Open
100MHz	66MHz	1.5x	4 & 7, 5 & 8, 6 & 9	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD, CON’T)
CPU speed	Clock speed	Multiplier	JP7	JP8	JP35
75MHz	50MHz	1.5x	1 & 2	1 & 2	1 & 2
90MHz	60MHz	1.5x	2 & 3	1 & 2	1 & 2
100MHz	66MHz	1.5x	1 & 2	2 & 3	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP1	JP5
75MHz	50MHz	1.5x	4 & 7, 5 & 8, 6 & 9	Open
90MHz	60MHz	1.5x	4 & 7, 5 & 8, 6 & 9	Open
100MHz	66MHz	1.5x	4 & 7, 5 & 8, 6 & 9	Open
120MHz	60MHz	2x	4 & 7, 5 & 8, 6 & 9	3 & 4
125MHz	50MHz	2.5x	4 & 7, 5 & 8, 6 & 9	1 & 2, 3 & 4
133MHz	66MHz	2x	4 & 7, 5 & 8, 6 & 9	3 & 4
150MHz	60MHz	2.5x	4 & 7, 5 & 8, 6 & 9	1 & 2, 3 & 4
150MHz (P55C)	60MHz	2.5x	1 & 4, 2 & 5, 3 & 6	1 & 2, 3 & 4
166MHz	66MHz	2.5x	4 & 7, 5 & 8, 6 & 9	1 & 2, 3 & 4
166MHz (P55C)	66MHz	2.5x	1 & 4, 2 & 5, 3 & 6	1 & 2, 3 & 4
180MHz	60MHz	3x	4 & 7, 5 & 8, 6 & 9	1 & 2
200MHz	66MHz	3x	4 & 7, 5 & 8, 6 & 9	1 & 2
200MHz (P55C)	66MHz	3x	1 & 4, 2 & 5, 3 & 6	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL, CON’T)
CPU speed	Clock speed	Multiplier	JP7	JP8	JP35
75MHz	50MHz	1.5x	1 & 2	1 & 2	1 & 2
90MHz	60MHz	1.5x	2 & 3	1 & 2	1 & 2
100MHz	66MHz	1.5x	1 & 2	2 & 3	1 & 2
120MHz	60MHz	2x	2 & 3	1 & 2	1 & 2
125MHz	50MHz	2.5x	1 & 2	1 & 2	1 & 2
133MHz	66MHz	2x	1 & 2	2 & 3	1 & 2
150MHz	60MHz	2.5x	2 & 3	1 & 2	1 & 2
150MHz (P55C)	60MHz	2.5x	2 & 3	1 & 2	1 & 2
166MHz	66MHz	2.5x	1 & 2	2 & 3	1 & 2
166MHz (P55C)	66MHz	2.5x	1 & 2	2 & 3	1 & 2
180MHz	60MHz	3x	2 & 3	1 & 2	1 & 2
200MHz	66MHz	3x	1 & 2	2 & 3	1 & 2
200MHz (P55C)	66MHz	3x	1 & 2	2 & 3	1 & 2
Note: Pins designated should be in the closed position.