AST RESEARCH, INC.

PREMMIA MX P/60, PREMMIA MX P/75

Processor

Pentium

Processor Speed

60/75/90/100MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

256KB

BIOS

AST

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN2

External battery

J26

Serial port

CN3

Speaker

J27

Serial port

CN4

Chassis fan power

J28

Parallel port

CN5

Front panel connector

J29

IDE interface 2

J22

Chassis fan power

J32

IDE interface 1

J23

IDE interface LED

J40

Floppy drive interface

J24

Riser slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

E4

Open

»

Factory configured - do not alter

E5

Open

»

Factory configured - do not alter

E6

Open

»

Factory configured - do not alter

E8

Open

»

Monitor type select color

E9

Closed

 

Monitor type select monochrome

E9

Open

»

Setup access enabled

E10

Closed

 

Setup access disabled

E10

Open

»

On board video enabled

E11

Closed

 

On board video disabled

E11

Open

»

Password normal operation

E12

Closed

 

Password clear

E12

Open

»

Flash BIOS normal operation

E13

Closed

 

Flash BIOS force update at boot

E13

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 32

None

10MB

(2) 1M x 32

(2) 256K x 32

16MB

(2) 2M x 32

None

16MB

(2) 1M x 32

(2) 1M x 32

18MB

(2) 2M x 32

(2) 256K x 32

24MB

(2) 2M x 32

(2) 1M x 32

32MB

(2) 4M x 32

None

32MB

(2) 2M x 32

(2) 2M x 32

34MB

(2) 4M x 32

(2) 256K x 32

40MB

(2) 4M x 32

(2) 1M x 32

48MB

(2) 4M x 32

(2) 2M x 32

64MB

(2) 8M x 32

None

64MB

(2) 4M x 32

(2) 4M x 32

66MB

(2) 8M x 32

(2) 256K x 32

DRAM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

72MB

(2) 8M x 32

(2) 1M x 32

80MB

(2) 8M x 32

(2) 2M x 32

96MB

(2) 8M x 32

(2) 4M x 32

128MB

(2) 8M x 32

(2) 8M x 32

CACHE CONFIGURATION

Note: 256KB cache is factory installed and is not configurable.

CPU SPEED SELECTION (IMI415)

CPU speed

Clock speed

E1

E2

E3

E7

75MHz

50MHz

2 & 3

Open

Closed

Closed

90MHz

60MHz

2 & 3

Open

Closed

Open

100MHz

66MHz

2 & 3

Closed

Closed

Open

Note: E1 is used for factory installed P75, P90 & P100 CPUs. Future upgrades may require a change in this jumper position. If a 60MHz CPU is installed, this jumper isn't used.

CPU SPEED SELECTION (IMI470)

CPU speed

Clock speed

E1

E2

E3

E7

75MHz

50MHz

2 & 3

Open

Closed

Open

90MHz

60MHz

2 & 3

Open

Closed

Closed

100MHz

66MHz

2 & 3

Closed

Closed

Closed

Note: E1 is used for factory installed P75, P90 & P100 CPUs. Future upgrades may require a change in this jumper position. If a 60MHz CPU is installed, this jumper isn't used.