NEAT 286 Motherboard Settings and Configuration

UNIDENTIFIED

NEAT 286

Processor
80286
Processor Speed
12/16MHz
Chip Set
C & T NEAT
Max. Onboard DRAM
8MB
Cache
None
BIOS
AMI
Dimensions
330mm x 218mm
I/O Options
16-bit external memory card slot
NPU Options
80287

CONNECTIONS
Purpose
Location
Purpose
Location
External battery
J3
Turbo switch
JP5
Speaker
J4
Turbo LED
LE1
Power LED & keylock
J5
16-bit external memory card
S1
Reset switch
JP4

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
BIOS type select 27256
JP1
pins 2 & 3 closed

BIOS type select 27128
JP1
pins 1 & 2 closed
»
NPU mode select asynchronous with CPU
JP3, JP6
pins 2 & 3 closed

NPU mode select synchronous with CPU
JP3, JP6
pins 1 & 2 closed
»
Monitor type select color
JP7
Closed

Monitor type select monochrome
JP7
Open

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
DRAM Mode
512KB
(18) 41256
NONE
NONE
NONE
1
512KB
NONE
NONE
(2) 256K x 9
NONE
2
640KB
(18) 41256
(18) 4164
NONE
NONE
1
640KB
NONE
NONE
(2) 256K x 9
(2) 64K x 9
2
1MB
(18) 41256
(18) 41256
NONE
NONE
1
1MB
NONE
NONE
(2) 256K x 9
(2) 256K x 9
2
1.5MB
(18) 41256
(18) 41256
(2) 256K x 9
NONE
1
1.5MB
(18) 41256
NONE
(2) 256K x 9
(2) 256K x 9
2
1.64MB
(18) 41256
(18) 4164
(2) 256K x 9
(2) 256K x 9
1
1.64MB
(18) 41256
(18) 41256
(2) 256K x 9
(2) 64K x 9
2
2MB
(18) 41256
(18) 41256
(2) 256K x 9
(2) 256K x 9
1 or 2
2MB
(18) 41100
NONE
NONE
NONE
1
2MB
NONE
NONE
(2) 1M x 9
NONE
2
3MB
(18) 41256
(18) 41256
(2) 1M x 9
NONE
1
3MB
(18) 41100
NONE
(2) 256K x 9
(2) 256K x 9
2
4MB
(18) 41100
(18) 41100
NONE
NONE
1
4MB
NONE
NONE
(2) 1M x 9
(2) 1M x 9
2
4.64MB
(18) 41256
(18) 4164
(2) 1M x 9
(2) 1M x 9
1
4.64MB
(18) 41100
(18) 41100
(2) 256K x 9
(2) 64K x 9
2
5MB
(18) 41256
(18) 41256
(2) 1M x 9
(2) 1M x 9
1
5MB
(18) 41100
(18) 41100
(2) 256K x 9
(2) 256K x 9
2
6MB
(18) 41100
(18) 41100
(2) 1M x 9
NONE
1
6MB
(18) 41100
NONE
(2) 1M x 9
(2) 1M x 9
2
8MB
(18) 41100
(18) 41100
(2) 1M x 9
(2) 1M x 9
1 or 2

DRAM MODE JUMPER CONFIGURATION
JP2
DRAM Mode 1
DRAM Mode 2
pins 1 & 2
Open
Closed
pins 2 & 3
Closed
Open
pins 3 & 4
Open
Closed
pins 4 & 5
Closed
Open
pins 5 & 6
Open
Open
pins 6 & 7
Open
Closed
pins 7 & 8
Closed
Open
pins 8 & 9
Open
Closed
pins 9 & 10
Closed
Open
pins 10 & 11
Open
Open
pins 11 & 12
Open
Closed
pins 12 & 13
Closed
Open
pins 13 & 14
Open
Closed
pins 14 & 15
Closed
Open
pins 15 & 16
Open
Open
pins 16 & 17
Open
Closed
pins 17 & 18
Closed
Open
pins 18 & 19
Open
Closed
pins 19 & 20
Closed
Open
pins 20 & 21
Open
Open
pins 21 & 22
Open
Closed
pins 22 & 23
Closed
Open
pins 23 & 24
Open
Closed
pins 24 & 25
Closed
Open
pins 25 & 26
Open
Open
pins 26 & 27
Open
Closed
pins 27 & 28
Closed
Open
pins 28 & 29
Open
Closed
pins 29 & 30
Closed
Open

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NEAT 286 Motherboard Settings and Configuration

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Processor	80286
Processor Speed	12/16MHz
Chip Set	C & T NEAT
Max. Onboard DRAM	8MB
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	16-bit external memory card slot
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J3	Turbo switch	JP5
Speaker	J4	Turbo LED	LE1
Power LED & keylock	J5	16-bit external memory card	S1
Reset switch	JP4

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	BIOS type select 27256	JP1	pins 2 & 3 closed
	BIOS type select 27128	JP1	pins 1 & 2 closed
»	NPU mode select asynchronous with CPU	JP3, JP6	pins 2 & 3 closed
	NPU mode select synchronous with CPU	JP3, JP6	pins 1 & 2 closed
»	Monitor type select color	JP7	Closed
	Monitor type select monochrome	JP7	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3	DRAM Mode
512KB	(18) 41256	NONE	NONE	NONE	1
512KB	NONE	NONE	(2) 256K x 9	NONE	2
640KB	(18) 41256	(18) 4164	NONE	NONE	1
640KB	NONE	NONE	(2) 256K x 9	(2) 64K x 9	2
1MB	(18) 41256	(18) 41256	NONE	NONE	1
1MB	NONE	NONE	(2) 256K x 9	(2) 256K x 9	2
1.5MB	(18) 41256	(18) 41256	(2) 256K x 9	NONE	1
1.5MB	(18) 41256	NONE	(2) 256K x 9	(2) 256K x 9	2
1.64MB	(18) 41256	(18) 4164	(2) 256K x 9	(2) 256K x 9	1
1.64MB	(18) 41256	(18) 41256	(2) 256K x 9	(2) 64K x 9	2
2MB	(18) 41256	(18) 41256	(2) 256K x 9	(2) 256K x 9	1 or 2
2MB	(18) 41100	NONE	NONE	NONE	1
2MB	NONE	NONE	(2) 1M x 9	NONE	2
3MB	(18) 41256	(18) 41256	(2) 1M x 9	NONE	1
3MB	(18) 41100	NONE	(2) 256K x 9	(2) 256K x 9	2
4MB	(18) 41100	(18) 41100	NONE	NONE	1
4MB	NONE	NONE	(2) 1M x 9	(2) 1M x 9	2
4.64MB	(18) 41256	(18) 4164	(2) 1M x 9	(2) 1M x 9	1
4.64MB	(18) 41100	(18) 41100	(2) 256K x 9	(2) 64K x 9	2
5MB	(18) 41256	(18) 41256	(2) 1M x 9	(2) 1M x 9	1
5MB	(18) 41100	(18) 41100	(2) 256K x 9	(2) 256K x 9	2
6MB	(18) 41100	(18) 41100	(2) 1M x 9	NONE	1
6MB	(18) 41100	NONE	(2) 1M x 9	(2) 1M x 9	2
8MB	(18) 41100	(18) 41100	(2) 1M x 9	(2) 1M x 9	1 or 2

DRAM MODE JUMPER CONFIGURATION
JP2	DRAM Mode 1	DRAM Mode 2
pins 1 & 2	Open	Closed
pins 2 & 3	Closed	Open
pins 3 & 4	Open	Closed
pins 4 & 5	Closed	Open
pins 5 & 6	Open	Open
pins 6 & 7	Open	Closed
pins 7 & 8	Closed	Open
pins 8 & 9	Open	Closed
pins 9 & 10	Closed	Open
pins 10 & 11	Open	Open
pins 11 & 12	Open	Closed
pins 12 & 13	Closed	Open
pins 13 & 14	Open	Closed
pins 14 & 15	Closed	Open
pins 15 & 16	Open	Open
pins 16 & 17	Open	Closed
pins 17 & 18	Closed	Open
pins 18 & 19	Open	Closed
pins 19 & 20	Closed	Open
pins 20 & 21	Open	Open
pins 21 & 22	Open	Closed
pins 22 & 23	Closed	Open
pins 23 & 24	Open	Closed
pins 24 & 25	Closed	Open
pins 25 & 26	Open	Open
pins 26 & 27	Open	Closed
pins 27 & 28	Closed	Open
pins 28 & 29	Open	Closed
pins 29 & 30	Closed	Open