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S801

SEANIX TECHNOLOGY, INC.

S801

Processor

80486SX/80486DX/80486DX2/80486DX4/Pentium Overdrive

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz

Chip Set

OPTI

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

AMI/ASI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J19

Turbo LED

JP16

Turbo switch

JP14

Reset switch

S1

Speaker

JP15

32-bit VESA local bus slots

SL1 & SL2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

ASI password enabled

JP3

Closed

 

ASI password disabled

JP3

Open

Flash BIOS write protect disabled

JP4

pins 2 & 3 closed

 

Flash BIOS write protect enabled

JP4

pins 1 & 2 closed

Flash voltage select 5v

JP27

pins 1 & 2 closed

 

Flash voltage select 12v

JP27

pins 2 & 3 closed

ASI/MR BIOS

JP36

Open

 

AMI w/MEGAKEY keyboard control & CMOS memory clear

JP36

Closed

Local ready delay enabled

JP37

pins 1 & 2 closed

 

Local ready = CPU ready enabled

JP37

pins 2 & 3 closed

CMOS memory normal operation

JP38

Open

 

CMOS memory clear

JP38

Closed

Factory configured - do not alter

JP41

Open

Factory configured - do not alter

JP42

pins 1 & 2 closed

Factory configured - do not alter

JP43

Open

Factory configured - do not alter

JP45

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

2MB

(1) 512K x 36

NONE

NONE

4MB

(1) 512K x 36

(1) 512K x 36

NONE

4MB

(1) 1M x 36

NONE

NONE

6MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

6MB

(1) 512K x 36

(1) 1M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

8MB

(1) 2M x 36

NONE

NONE

10MB

(1) 512K x 36

(1) 2M x 36

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

12MB

(1) 1M x 36

(1) 2M x 36

NONE

12MB

(1) 512K x 36

(1) 512K x 36

(1) 2M x 36

14MB

(1) 512K x 36

(1) 1M x 36

(1) 2M x 36

16MB

(1) 2M x 36

(1) 2M x 36

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 2M x 36

16MB

(1) 4M x 36

NONE

NONE

18MB

(1) 512K x 36

(1) 2M x 36

(1) 2M x 36

20MB

(1) 1M x 36

(1) 4M x 36

NONE

20MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

32MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

32MB

(1) 8M x 36

NONE

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

48MB

(1) 2M x 36

(1) 2M x 36

(1) 8M x 36

DRAM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

Bank 2

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

64MB

(1) 16M x 36

NONE

NONE

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U1)

TAG (U2)

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP11

JP13

JP25

JP26

64KB

pins 2 & 3 closed

pins 2 & 3 closed

Open

Open

128KB

pins 1 & 2 closed

pins 1 & 2 closed

Open

Closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

Closed

Closed

CPU TYPE CONFIGURATION

Type

JP20

80486SX

pins 1 & 2 closed

80486DX

pins 1 & 2, 3 & 4 closed

80486DX2

pins 1 & 2, 3 & 4 closed

80486DX4

pins 1 & 2, 3 & 4 closed

Pentium Overdrive

pins 1 & 2, 3 & 4 closed

CPU SPEED CONFIGURATION

Speed

JP5

JP6

JP7

25MHz

Open

Open

pins 1 & 2 closed

33MHz

Closed

Open

pins 1 & 2 closed

40MHz

Open

Closed

pins 1 & 2 closed

50iMHz

Open

Open

pins 1 & 2 closed

50MHz

Closed

Closed

pins 1 & 2 closed

66iMHz

Closed

Open

pins 1 & 2 closed

75iMHz

Open

Open

pins 2 & 3 closed

100iMHz

Closed

Open

pins 2 & 3 closed

CPU CLOCK SPEED CONFIGURATION (80486DX4)

Speed

JP39

1x

Open

2x

pins 1 & 2 closed

3x

pins 2 & 3 closed

CPU VOLTAGE CONFIGURATION

Speed

JP9

JP10

JP34

JP35

3.3v

Open

Open

Open

Open

5.0v

Closed

Closed

Closed

Closed

VESA WAIT STATE CONFIGURATION

Wait states

JP23

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP24

<= 33MHz

Open

> 33MHz

Closed