...because we can't all be on the bleeding edge...





PREMMIA SYSTEM BOARD (P/N202514-00X)

AST RESEARCH, INC.

PREMMIA SYSTEM BOARD (P/N202514-00X)

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium

Processor Speed

25/33/50(internal)/66(internal)MHz

Chip Set

ATI

Max. Onboard DRAM

128MB

Cache

64/256KB (Located on the external cache module)

BIOS

AST

Dimensions

355mm x 304mm

I/O Options

Cache/Pentium upgrade module, floppy drive interface (2), IDE interface,

parallel port, PS/2 mouse port, serial ports (2), VGA feature connector,

video port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Bus mouse port

J12

Manufacturer’s test header

J23

Parallel port

J13

Floppy drive interface 1 & 2

J24

Serial port 1

J14

Floppy drive interface 3

J25

Personality/feature connector

J15

External battery

J26

Personality/feature connector

J16

Speaker

J27

Pentium/Cache module upgrade

J17

Chassis fan power

J28

SVGA monitor port

J18

Front console header

J29

VGA port

J19

Manufacturer’s test header

J30

Serial port 2

J20

IDE interface LED

J35

IDE interface

J22

Personality/feature connector

J46

Note:The personality/feature connectors alow various network modules to be added to the system.

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Factory configured - do not alter

E2

Open

»

Pariity checking enabled

E3

Closed

 

Pariity checking disabled

E3

Open

»

Flash BIOS voltage 12V

E5

pins 2 & 3 closed

 

Flash BIOS voltage 5V

E5

pins 1 & 2 open

»

VGA enabled

SW1/switch 1

On

 

VGA disabled

SW1/switch 1

Off

»

Factory configured - do not alter

SW1/switch 2

N/A

»

CMOS memory normal operation

SW1/switch 3

Off

 

CMOS memory clear

SW1/switch 3

On

»

BIOS normal operation

SW1/switch 4

Off

 

BIOS forced update

SW1/switch 4

On

»

Password override

SW1/switch 5

Off

 

Password inhibited

SW1/switch 5

On

»

Factory configured - do not alter

SW1/switch 6

Off

»

Factory configured - do not alter

SW1/switch 7

Off

»

Factory configured - do not alter

SW1/switch 8

Off

»

Factory configured - do not alter

SW1/switch 9

Off

»

Monitor type select color

SW1/switch 10

On

 

Monitor type select monochrome

SW1/switch 10

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

4MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

4MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

8MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

8MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

12MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

16MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

16MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

18MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

20MB

(1) 2M x 36

(1) 2M x 36

(1) 8M x 36

(1) 8M x 36

24MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

32MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

32MB

(1) 16M x 36

(1) 16M x 9

NONE

NONE

34MB

(1) 1M x 36

(1) 1M x 36

(1) 16M x 36

(1) 16M x 36

36MB

(1) 2M x 36

(1) 2M x 36

(1) 16M x 36

(1) 16M x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

(1) 16M x 36

48MB

(1) 8M x 36

(1) 8M x 36

(1) 16M x 36

(1) 16M x 36

64MB

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

64MB

(1) 32M x 36

(1) 32M x 36

NONE

NONE

66MB

(1) 1M x 36

(1) 1M x 36

(1) 32M x 36

(1) 32M x 36

68MB

(1) 2M x 36

(1) 2M x 36

(1) 32M x 36

(1) 32M x 36

72MB

(1) 4M x 36

(1) 4M x 36

(1) 32M x 36

(1) 32M x 36

80MB

(1) 8M x 36

(1) 8M x 36

(1) 32M x 36

(1) 32M x 36

96MB

(1) 16M x 36

(1) 16M x 36

(1) 32M x 36

(1) 32M x 36

128MB

(1) 32M x 36

(1) 32M x 36

(1) 32M x 36

(1) 32M x 36

CPU TYPE CONFIGURATION

PQFP

PGA

Pentium

E1

E4

E6

E7

80486SX

None

None

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

80486SX

80487SX

None

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

80486SX

ODP486SX

None

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

80486SX

80486DX/80486DX2

None

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 1 & 2

80486DX

None

None

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

80486DX

80486DX/80486DX2

None

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 1 & 2

80486DX

ODP486SX

None

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

None

80486SX

None

Open

Open

pins 2 & 3

pins 2 & 3

None

80486DX/80486DX2

None

Open

pins 2 & 3

pins 1 & 2

pins 1 & 2

None

ODP486SX

None

Open

pins 1 & 2

pins 1 & 2

pins 1 & 2

Any

None

Yes

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

None

None

Yes

Open

pins 1 & 2

pins 1 & 2

pins 1 & 2

Note:Pins designated should be in the closed position.

Before installing the Pentium upgrade board, remove the processor in the ZIF socket at U13.

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

1MB

(2) 46256

(2) 46256

2MB

(2) 46256

(2) 46256