S895 (VER. 1.0) Motherboard Settings and Configuration

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

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S895 (VER. 1.0) Motherboard Settings and Configuration

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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