80386SX-16 Motherboard Settings and Configuration

MICRONICS COMPUTERS, INC.

80386SX-16

Processor
80386SX
Processor Speed
16MHz
Chip Set
Intel
Max. Onboard DRAM
8MB
Cache
None
BIOS
AMI
Dimensions
331mm x 220mm
I/O Options
None
NPU Options
80387SX

CONNECTIONS
Purpose
Location
Purpose
Location
External battery
J2
Turbo switch
J5
Reset switch
J3
Speaker
J6
Turbo LED
J4
Power LED & keylock
J7

USER CONFIGURABLE SETTINGS
Function
Jumper/Switch
Position
»
CPU speed select forced high
J5
Closed

CPU speed select switchable at keyboard
J5
Open
»
Keyboard BIOS turbo mode output signal select pin 23
J8
pins 1 & 4 closed

Keyboard BIOS turbo mode output signal select pin 30
J8
pins 2 & 5 closed

Keyboard BIOS turbo mode output signal select pin 32
J8
pins 3 & 6 closed
»
BIOS type select 27256
SW1/1
Open

BIOS type select 27512
SW1/1
Closed
»
Monitor type select monochrome
SW1/2
Open

Monitor type select color
SW1/2
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
512KB
(18) 41256
NONE
NONE
NONE
512KB
NONE
NONE
(2) 256K x 9
NONE
1MB
(18) 41256
(18) 41256
NONE
NONE
1MB
NONE
NONE
(2) 256K x 9
(2) 256K x 9
1MB
(18) 41256
NONE
NONE
(2) 256K x 9
1MB
NONE
(18) 41256
(2) 256K x 9
NONE
1.5MB
(18) 41256
(18) 41256
(2) 256K x 9
NONE
1.5MB
(18) 41256
NONE
(2) 256K x 9
(2) 256K x 9
2MB
(18) 41256
(18) 41256
(2) 256K x 9
(2) 256K x 9
2MB
(18) 411000
NONE
NONE
NONE
2MB
NONE
NONE
(2) 1M x 9
NONE
4MB
(18) 411000
(18) 411000
NONE
NONE
4MB
NONE
NONE
(2) 1M x 9
(2) 1M x 9
4MB
(18) 41000
NONE
NONE
(2) 1M x 9
4MB
NONE
(18) 411000
(2) 1M x 9
NONE
6MB
(18) 411000
(18) 411000
(2) 1M x 9
NONE
6MB
(18) 411000
NONE
(2) 1M x 9
(2) 1M x 9
8MB
(18) 411000
(18) 411000
(2) 1M x 9
(2) 1M x 9

DRAM MODE CONFIGURATION
Mode
DRAM Type
DRAM speed
Max pages active
SW1/3
SW1/4
F1
Fast Page mode
100ns
4
Off
Off
F2
Fast Page mode
100ns
1
On
Off
W01
Non-Page mode
100ns
4
Off
On
W02
Non-Page mode
120ns
4
On
On

DRAM JUMPER CONFIGURATION
Size
JP1
JP2
JP3
JP4
JP5
JP6
512KB
N/A
N/A
N/A
N/A
N/A
N/A
512KB
N/A
N/A
N/A
1 & 2
1 & 2
1 & 2
1MB
N/A
N/A
N/A
N/A
N/A
N/A
1MB
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
1MB
1 & 2
1 & 2
1 & 2
N/A
N/A
N/A
1MB
N/A
N/A
N/A
1 & 2
1 & 2
1 & 2
1.5MB
N/A
N/A
N/A
1 & 2
2 & 3
2 & 3
1.5MB
1 & 2
1 & 2
1 & 2
2 & 3
2 & 3
2 & 3
2MB
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2MB
N/A
N/A
N/A
N/A
N/A
N/A
2MB
N/A
N/A
N/A
1 & 2
1 & 2
1 & 2
4MB
N/A
N/A
N/A
N/A
N/A
N/A
4MB
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
4MB
1 & 2
1 & 2
1 & 2
N/A
N/A
N/A
4MB
N/A
N/A
N/A
1 & 2
1 & 2
1 & 2
6MB
N/A
N/A
N/A
2 & 3
2 & 3
2 & 3
6MB
1 & 2
1 & 2
1 & 2
2 & 3
2 & 3
2 & 3
8MB
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
Note:Pins designated should be in the closed position.

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80386SX-16 Motherboard Settings and Configuration

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Processor	80386SX
Processor Speed	16MHz
Chip Set	Intel
Max. Onboard DRAM	8MB
Cache	None
BIOS	AMI
Dimensions	331mm x 220mm
I/O Options	None
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J2	Turbo switch	J5
Reset switch	J3	Speaker	J6
Turbo LED	J4	Power LED & keylock	J7

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	CPU speed select forced high	J5	Closed
	CPU speed select switchable at keyboard	J5	Open
»	Keyboard BIOS turbo mode output signal select pin 23	J8	pins 1 & 4 closed
	Keyboard BIOS turbo mode output signal select pin 30	J8	pins 2 & 5 closed
	Keyboard BIOS turbo mode output signal select pin 32	J8	pins 3 & 6 closed
»	BIOS type select 27256	SW1/1	Open
	BIOS type select 27512	SW1/1	Closed
»	Monitor type select monochrome	SW1/2	Open
	Monitor type select color	SW1/2	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(18) 41256	NONE	NONE	NONE
512KB	NONE	NONE	(2) 256K x 9	NONE
1MB	(18) 41256	(18) 41256	NONE	NONE
1MB	NONE	NONE	(2) 256K x 9	(2) 256K x 9
1MB	(18) 41256	NONE	NONE	(2) 256K x 9
1MB	NONE	(18) 41256	(2) 256K x 9	NONE
1.5MB	(18) 41256	(18) 41256	(2) 256K x 9	NONE
1.5MB	(18) 41256	NONE	(2) 256K x 9	(2) 256K x 9
2MB	(18) 41256	(18) 41256	(2) 256K x 9	(2) 256K x 9
2MB	(18) 411000	NONE	NONE	NONE
2MB	NONE	NONE	(2) 1M x 9	NONE
4MB	(18) 411000	(18) 411000	NONE	NONE
4MB	NONE	NONE	(2) 1M x 9	(2) 1M x 9
4MB	(18) 41000	NONE	NONE	(2) 1M x 9
4MB	NONE	(18) 411000	(2) 1M x 9	NONE
6MB	(18) 411000	(18) 411000	(2) 1M x 9	NONE
6MB	(18) 411000	NONE	(2) 1M x 9	(2) 1M x 9
8MB	(18) 411000	(18) 411000	(2) 1M x 9	(2) 1M x 9

DRAM MODE CONFIGURATION
Mode	DRAM Type	DRAM speed	Max pages active	SW1/3	SW1/4
F1	Fast Page mode	100ns	4	Off	Off
F2	Fast Page mode	100ns	1	On	Off
W01	Non-Page mode	100ns	4	Off	On
W02	Non-Page mode	120ns	4	On	On

DRAM JUMPER CONFIGURATION
Size	JP1	JP2	JP3	JP4	JP5	JP6
512KB	N/A	N/A	N/A	N/A	N/A	N/A
512KB	N/A	N/A	N/A	1 & 2	1 & 2	1 & 2
1MB	N/A	N/A	N/A	N/A	N/A	N/A
1MB	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
1MB	1 & 2	1 & 2	1 & 2	N/A	N/A	N/A
1MB	N/A	N/A	N/A	1 & 2	1 & 2	1 & 2
1.5MB	N/A	N/A	N/A	1 & 2	2 & 3	2 & 3
1.5MB	1 & 2	1 & 2	1 & 2	2 & 3	2 & 3	2 & 3
2MB	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
2MB	N/A	N/A	N/A	N/A	N/A	N/A
2MB	N/A	N/A	N/A	1 & 2	1 & 2	1 & 2
4MB	N/A	N/A	N/A	N/A	N/A	N/A
4MB	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
4MB	1 & 2	1 & 2	1 & 2	N/A	N/A	N/A
4MB	N/A	N/A	N/A	1 & 2	1 & 2	1 & 2
6MB	N/A	N/A	N/A	2 & 3	2 & 3	2 & 3
6MB	1 & 2	1 & 2	1 & 2	2 & 3	2 & 3	2 & 3
8MB	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
Note:Pins designated should be in the closed position.