HwMuseum | Index

SEANIX TECHNOLOGY, INC.

S895 (VER. 1.0)

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

128MB

Cache

128/256KB

BIOS

Award

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J15

Chassis fan power

JP118

Speaker

JP27

PAL socket for VL master option

JP140

Turbo switch

JP114

Reset switch

S1

Turbo LED

JP115

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Flash BIOS write protect enabled

JP3

pins 1 & 2 closed

 

Flash BIOS write protect disabled

JP3

pins 2 & 3 closed

»

Factory configured - do not alter

JP5

pins 1 & 2 closed

»

Cache type select write through

JP14

Open

 

Cache type select write back

JP14

Closed

»

Pentium Overdrive level 1 cache select burst write

JP16

Closed

 

Pentium Overdrive level 1 cache select disable blen#

JP16

Open

»

Factory configured - do not alter

JP21

pins 2 & 3 closed

»

Programming voltage select +12v

JP107

pins 1 & 2 closed

 

Programming voltage select +5v

JP107

pins 2 & 3 closed

»

1Mbit flash select 512KB bit file at 00000

JP108

Closed

 

1Mbit flash select 512KB bit file at 10000

JP108

Open

»

Factory configured - do not alter

JP112

Open

»

Factory configured - do not alter

JP113

Open

»

CPU type select Intel/AMD

JP119

pins 1 & 2 closed

 

CPU type select Cyrix M7

JP119

pins 2 & 3 closed

»

CPU type select Intel/AMD

JP120

Open

 

CPU type select Cyrix 2X

JP120

Closed

»

Factory configured - do not alter

JP121

Open

»

Factory configured - do not alter

JP122

Open

»

Factory configured - do not alter

JP123

Open

»

Factory configured - do not alter

JP127

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

(1) 512K x 36

NONE

NONE

NONE

4MB

(1) 512K x 36

(1) 512K x 36

NONE

NONE

4MB

(1) 1M x 36

NONE

NONE

NONE

6MB

(1) 512K x 36

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

6MB

(1) 512K x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

10MB

(1) 512K x 36

(1) 2M x 36

NONE

NONE

12MB

(1) 512K x 36

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

14MB

(1) 512K x 36

(1) 1M 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) 512K x 36

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

20MB

(1) 1M x 36

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

24MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

32MB

(1) 8M x 36

NONE

NONE

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

48MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

NONE

NONE

NONE

96MB

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP125

JP126

128KB

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

JP26

80486SX

pins 2 & 3 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 TYPE CONFIGURATION

Type

JP25

JP116

Non - SL enhanced CPU

Open

Open

SL enhanced CPU

Closed

pins 1 & 2, 3 & 4 closed

CPU SPEED CONFIGURATION

Speed

JP124

25MHz

pins 1 & 2, 5 & 6 closed

33MHz

pins 1 & 2, 3 & 4 closed

40MHz

pins 5 & 6 closed

50iMHz

pins 1 & 2, 5 & 6 closed

50MHz

pins 3 & 4 closed

66iMHz

pins 1 & 2, 3 & 4 closed

75iMHz

pins 1 & 2, 5 & 6 closed

100iMHz

pins 1 & 2, 3 & 4 closed

CPU VOLTAGE CONFIGURATION

Voltage

JP101

JP102

JP103

JP104

3.45v

Open

Open

Open

Open

5v

Closed

Closed

Closed

Closed

Note: The location of JP101 is unidentified.

VESA WAIT STATE CONFIGURATION

Wait states

JP31

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP30

<= 33MHz

Open

> 33MHz

Closed