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AX8158

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