AX8158 Motherboard Settings and Configuration

AXIOM TECHNOLOGY, INC.

AX8158

Processor
Pentium
Processor Speed
75/90/100/120/133/166/MHz
Chip Set
SIS
Video Chip Set
None
Maximum Onboard Memory
128MB (EDO supported)
Maximum Video Memory
None
Cache
256/512/1024KB
BIOS
AMI
Dimensions
388mm x 122mm
I/O Options
Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), cache slot
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
IDE interface LED
CN1
Serial port 2
CN9
Reset switch
CN2
Auxiliary keyboard connector
CN10
Speaker
CN3
PS/2 mouse interface
CN11
IDE interface 1
CN5
Serial port 1
CN12
IDE interface 2
CN6
PS/2 mouse port
CN14
Floppy drive interface
CN7
Cache slot
SL1
Parallel port
CN8

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
PCI bus clock select CPUCLK/2
J7
Pins 1 & 2 closed

PCI bus clock select 32MHz
J7
Pins 2 & 3 closed
»
CPU NA# mode disabled
J8
Pins 1 & 2 closed

CPU NA# mode enabled
J8
Pins 2 & 3 closed
»
CPU cache type select write back
J9
Pins 1 & 2 closed

CPU cache type select write through
J9
Pins 2 & 3 closed
»
Parallel port IRQ select IRQ7
J12
Pins 1 & 2 closed

Parallel port IRQ select IRQ5
J12
Pins 2 & 3 closed
»
WDT function select NMI
J13
Pins 1 & 2 closed

WDT function select reset
J13
Pins 2 & 3 closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(1) 256K x 36
None
None
None
2MB
(1) 256K x 36
(1) 256K x 36
None
None
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
4MB
(1) 512K x 36
(1) 512K x 36
None
None
4MB
(1) 1M x 36
None
None
None
6MB
(1) 256K x 36
(1) 256K x 36
(1) 512K x 36
(1) 512K x 36
8MB
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
8MB
(1) 1M x 36
(1) 1M x 36
None
None
10MB
(1) 256K x 36
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
12MB
(1) 512K x 36
(1) 512K x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 2M x 36
(1) 2M x 36
None
None
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 4M x 36
None
None
None
18MB
(1) 256K x 36
(1) 256K x 36
(1) 2M x 36
(1) 2M x 36
20MB
(1) 512K x 36
(1) 512K x 36
(1) 2M x 36
(1) 2M x 36
24MB
(1) 1M x 36
(1) 1M x 36
(1) 2M x 36
(1) 2M x 36
32MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
32MB
(1) 4M x 36
(1) 4M x 36
None
None
34MB
(1) 256K x 36
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
36MB
(1) 512K x 36
(1) 512K x 36
(1) 4M x 36
(1) 4M x 36
40MB
(1) 1M x 36
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
48MB
(1) 2M x 36
(1) 2M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 8M x 36
(1) 8M x 36
None
None
66MB
(1) 256K x 36
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
68MB
(1) 512K x 36
(1) 512K x 36
(1) 8M x 36
(1) 8M x 36
72MB
(1) 1M x 36
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
80MB
(1) 2M x 36
(1) 2M x 36
(1) 8M x 36
(1) 8M x 36
96MB
(1) 4M x 36
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
128MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.

CACHE CONFIGURATION
Size
Bank 0
SL1
TAG
256KB (A)
(8) 32K x 8
Not installed
(1) 32K x 8
256KB (B)
None
256KB module installed
None
512KB (A)
(8) 64K x 8
Not installed
(1) 32K x 8
512KB (B)
None
512KB module installed
None
1MB
(8) 128K x 8
Not installed
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
J2
J3
256KB (A)
Pins 1 & 2 closed
Pins 1 & 2 closed
256KB (B)
Pins 1 & 2 closed
Pins 1 & 2 closed
512KB (A)
Pins 1 & 2 closed
Pins 2 & 3 closed
512KB (B)
Pins 1 & 2 closed
Pins 2 & 3 closed
1MB
Pins 2 & 3 closed
Pins 2 & 3 closed

CACHE TYPE CONFIGURATION
Type
J1
»
Asynchronous
Pins 1 & 2 closed

Burst/pipeline burst
Pins 2 & 3 closed

CPU SPEED SELECTION
CPU speed
Clock speed
Multiplier
J5
J6
J10
J11
75MHz
50MHz
1.5x
1 & 2
2 & 3
1 & 2
1 & 2
90MHz
60MHz
1.5x
2 & 3
2 & 3
1 & 2
1 & 2
100MHz
66MHz
1.5x
1 & 2
1 & 2
1 & 2
1 & 2
120MHz
60MHz
2x
2 & 3
2 & 3
1 & 2
2 & 3
133MHz
66MHz
2x
1 & 2
1 & 2
1 & 2
2 & 3
166MHz
66MHz
2.5x
1 & 2
1 & 2
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
J4
J14
»
3.36v
Pins 1 & 2 closed
Pins 1 & 2 closed

3.53v
Pins 2 & 3 closed
Pins 2 & 3 closed

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AX8158 Motherboard Settings and Configuration

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Processor	Pentium
Processor Speed	75/90/100/120/133/166/MHz
Chip Set	SIS
Video Chip Set	None
Maximum Onboard Memory	128MB (EDO supported)
Maximum Video Memory	None
Cache	256/512/1024KB
BIOS	AMI
Dimensions	388mm x 122mm
I/O Options	Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), cache slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
IDE interface LED	CN1	Serial port 2	CN9
Reset switch	CN2	Auxiliary keyboard connector	CN10
Speaker	CN3	PS/2 mouse interface	CN11
IDE interface 1	CN5	Serial port 1	CN12
IDE interface 2	CN6	PS/2 mouse port	CN14
Floppy drive interface	CN7	Cache slot	SL1
Parallel port	CN8

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	PCI bus clock select CPUCLK/2	J7	Pins 1 & 2 closed
	PCI bus clock select 32MHz	J7	Pins 2 & 3 closed
»	CPU NA# mode disabled	J8	Pins 1 & 2 closed
	CPU NA# mode enabled	J8	Pins 2 & 3 closed
»	CPU cache type select write back	J9	Pins 1 & 2 closed
	CPU cache type select write through	J9	Pins 2 & 3 closed
»	Parallel port IRQ select IRQ7	J12	Pins 1 & 2 closed
	Parallel port IRQ select IRQ5	J12	Pins 2 & 3 closed
»	WDT function select NMI	J13	Pins 1 & 2 closed
	WDT function select reset	J13	Pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	None	None	None
2MB	(1) 256K x 36	(1) 256K x 36	None	None
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
4MB	(1) 512K x 36	(1) 512K x 36	None	None
4MB	(1) 1M x 36	None	None	None
6MB	(1) 256K x 36	(1) 256K x 36	(1) 512K x 36	(1) 512K x 36
8MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
8MB	(1) 1M x 36	(1) 1M x 36	None	None
10MB	(1) 256K x 36	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 512K x 36	(1) 512K x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 2M x 36	(1) 2M x 36	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 4M x 36	None	None	None
18MB	(1) 256K x 36	(1) 256K x 36	(1) 2M x 36	(1) 2M x 36
20MB	(1) 512K x 36	(1) 512K x 36	(1) 2M x 36	(1) 2M x 36
24MB	(1) 1M x 36	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
32MB	(1) 4M x 36	(1) 4M x 36	None	None
34MB	(1) 256K x 36	(1) 256K x 36	(1) 4M x 36	(1) 4M x 36
36MB	(1) 512K x 36	(1) 512K x 36	(1) 4M x 36	(1) 4M x 36
40MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36
48MB	(1) 2M x 36	(1) 2M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	(1) 8M x 36	None	None
66MB	(1) 256K x 36	(1) 256K x 36	(1) 8M x 36	(1) 8M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
68MB	(1) 512K x 36	(1) 512K x 36	(1) 8M x 36	(1) 8M x 36
72MB	(1) 1M x 36	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36
80MB	(1) 2M x 36	(1) 2M x 36	(1) 8M x 36	(1) 8M x 36
96MB	(1) 4M x 36	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.

CACHE CONFIGURATION
Size	Bank 0	SL1	TAG
256KB (A)	(8) 32K x 8	Not installed	(1) 32K x 8
256KB (B)	None	256KB module installed	None
512KB (A)	(8) 64K x 8	Not installed	(1) 32K x 8
512KB (B)	None	512KB module installed	None
1MB	(8) 128K x 8	Not installed	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	J2	J3
256KB (A)	Pins 1 & 2 closed	Pins 1 & 2 closed
256KB (B)	Pins 1 & 2 closed	Pins 1 & 2 closed
512KB (A)	Pins 1 & 2 closed	Pins 2 & 3 closed
512KB (B)	Pins 1 & 2 closed	Pins 2 & 3 closed
1MB	Pins 2 & 3 closed	Pins 2 & 3 closed

CACHE TYPE CONFIGURATION
Type		J1
»	Asynchronous	Pins 1 & 2 closed
	Burst/pipeline burst	Pins 2 & 3 closed

CPU SPEED SELECTION
CPU speed	Clock speed	Multiplier	J5	J6	J10	J11
75MHz	50MHz	1.5x	1 & 2	2 & 3	1 & 2	1 & 2
90MHz	60MHz	1.5x	2 & 3	2 & 3	1 & 2	1 & 2
100MHz	66MHz	1.5x	1 & 2	1 & 2	1 & 2	1 & 2
120MHz	60MHz	2x	2 & 3	2 & 3	1 & 2	2 & 3
133MHz	66MHz	2x	1 & 2	1 & 2	1 & 2	2 & 3
166MHz	66MHz	2.5x	1 & 2	1 & 2	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage		J4	J14
»	3.36v	Pins 1 & 2 closed	Pins 1 & 2 closed
	3.53v	Pins 2 & 3 closed	Pins 2 & 3 closed