JATO 286+ Motherboard Settings and Configuration

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JATO 286+

Processor
80286
Processor Speed
10/12/16/20MHz
Chip Set
LSI
Max. Onboard DRAM
8MB
Cache
None
BIOS
Unidentified
Dimensions
330mm x 218mm
I/O Options
None
NPU Options
80287

CONNECTIONS
Purpose
Location
Purpose
Location
Turbo LED
J1
Serial port 1
J6
Power LED & keylock
J2
External battery
J8
Speaker
J3
Reset switch
JP1
Serial port 2
J4
Reset switch
JP5
Parallel port
J5

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
NPU clock speed select CPU clock
JP2
pins 1 & 2 closed

NPU clock speed select OSC1
JP2
pins 2 & 3 closed
»
BIOS type select 27128
JP3
pins 1 & 2 closed

BIOS type select 27256
JP3
pins 2 & 3 closed
»
Power good signal detect from board
JP4
pins 2 & 3 closed

Power good signal detect from power supply
JP4
pins 1 & 2 closed
»
Monitor type select color
JP6
Closed

Monitor type select monochrome
JP6
Open
»
Battery type select internal
JP7
Closed

Battery type select external
JP7
Open
»
Parallel port enabled
JP8
Open

Parallel port disabled
JP8
Closed
»
Serial port 2 enabled
JP9
Open

Serial port 2 disabled
JP9
Closed
»
Serial port 1 enabled
JP10
Open
»
Serial port 1 disabled
JP10
Closed

Factory configured - do not alter
JP11
Open

DRAM CONFIGURATION (OPTION 1)
Size
Bank 0
Bank 1
Bank 2
Bank 3
512KB
(18) 41256
NONE
NONE
NONE
640KB
(18) 41256
(18) 4164
NONE
NONE
1MB
(18) 41256
(18) 41256
NONE
NONE
2MB
(18) 41256
(18) 41256
(2) 256K x 9
(2) 256K x 9
4MB
(18) 411000
(18) 411000
NONE
NONE
5MB
(18) 411000
(18) 411000
(2) 256K x 9
(2) 256K x 9
8MB
(18) 411000
(18) 411000
(2) 1M x 9
(2) 1M x 9

DRAM CONFIGURATION (OPTION 2)
Size
Bank 0
Bank 1
Bank 2
Bank 3
512KB
NONE
NONE
(2) 256K x 9
NONE
1MB
NONE
NONE
(2) 256K x 9
(2) 256K x 9
2MB
(18) 41256
(18) 41256
(2) 256K x 9
(2) 256K x 9
4MB
NONE
NONE
(2) 1M x 9
(2) 1M x 9
5MB
(18) 41256
(18) 41256
(2) 1M x 9
(2) 1M x 9
5MB
(18) 411000
(18) 411000
(2) 256K x 9
(2) 256K x 9
8MB
(18) 411000
(18) 411000
(2) 1M x 9
(2) 1M x 9

DRAM RESISTOR CONFIGURATION
Size
AR23
AR24
AR25
AR26
Option 1
Installed
Installed
Not Installed
Not Installed
Option 2
Not Installed
Not Installed
Installed
Installed

DRAM RESISTOR CONFIGURATION (CON’T)
Size
AR27
AR28
AR29
AR30
Option 1
Not Installed
Not Installed
Installed
Installed
Option 2
Installed
Installed
Not Installed
Not Installed

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JATO 286+ Motherboard Settings and Configuration

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Processor	80286
Processor Speed	10/12/16/20MHz
Chip Set	LSI
Max. Onboard DRAM	8MB
Cache	None
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo LED	J1	Serial port 1	J6
Power LED & keylock	J2	External battery	J8
Speaker	J3	Reset switch	JP1
Serial port 2	J4	Reset switch	JP5
Parallel port	J5

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	NPU clock speed select CPU clock	JP2	pins 1 & 2 closed
	NPU clock speed select OSC1	JP2	pins 2 & 3 closed
»	BIOS type select 27128	JP3	pins 1 & 2 closed
	BIOS type select 27256	JP3	pins 2 & 3 closed
»	Power good signal detect from board	JP4	pins 2 & 3 closed
	Power good signal detect from power supply	JP4	pins 1 & 2 closed
»	Monitor type select color	JP6	Closed
	Monitor type select monochrome	JP6	Open
»	Battery type select internal	JP7	Closed
	Battery type select external	JP7	Open
»	Parallel port enabled	JP8	Open
	Parallel port disabled	JP8	Closed
»	Serial port 2 enabled	JP9	Open
	Serial port 2 disabled	JP9	Closed
»	Serial port 1 enabled	JP10	Open
»	Serial port 1 disabled	JP10	Closed
	Factory configured - do not alter	JP11	Open

DRAM CONFIGURATION (OPTION 1)
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(18) 41256	NONE	NONE	NONE
640KB	(18) 41256	(18) 4164	NONE	NONE
1MB	(18) 41256	(18) 41256	NONE	NONE
2MB	(18) 41256	(18) 41256	(2) 256K x 9	(2) 256K x 9
4MB	(18) 411000	(18) 411000	NONE	NONE
5MB	(18) 411000	(18) 411000	(2) 256K x 9	(2) 256K x 9
8MB	(18) 411000	(18) 411000	(2) 1M x 9	(2) 1M x 9

DRAM CONFIGURATION (OPTION 2)
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	NONE	NONE	(2) 256K x 9	NONE
1MB	NONE	NONE	(2) 256K x 9	(2) 256K x 9
2MB	(18) 41256	(18) 41256	(2) 256K x 9	(2) 256K x 9
4MB	NONE	NONE	(2) 1M x 9	(2) 1M x 9
5MB	(18) 41256	(18) 41256	(2) 1M x 9	(2) 1M x 9
5MB	(18) 411000	(18) 411000	(2) 256K x 9	(2) 256K x 9
8MB	(18) 411000	(18) 411000	(2) 1M x 9	(2) 1M x 9

DRAM RESISTOR CONFIGURATION
Size	AR23	AR24	AR25	AR26
Option 1	Installed	Installed	Not Installed	Not Installed
Option 2	Not Installed	Not Installed	Installed	Installed

DRAM RESISTOR CONFIGURATION (CON’T)
Size	AR27	AR28	AR29	AR30
Option 1	Not Installed	Not Installed	Installed	Installed
Option 2	Installed	Installed	Not Installed	Not Installed