PRECISION 286 TURBO Motherboard Settings and Configuration

UNIDENTIFIED

PRECISION 286 TURBO

Processor
80286 (exact location unidentified)
Processor Speed
10/12MHz
Chip Set
VLSI
Max. Onboard DRAM
4MB
Cache
None
BIOS
AMI/Award/Phoenix
Dimensions
330mm x 218mm
I/O Options
None
NPU Options
80287 (exact location unidentified)

CONNECTIONS
Purpose
Location
Purpose
Location
External battery
J13
Turbo LED
CN22
Speaker
J23
Reset switch
CN23
Turbo switch
CN20
Power LED & keylock
CN24

USER CONFIGURABLE SETTINGS
Function
Jumper
Position

Monitor type select color
J3
Closed

Monitor type select monochrome
J3
Open

Wait state select 0 wait states
J11
Closed

Wait state select 1 wait state
J11
Open

Parity enabled
J12
Closed

Parity disabled
J12
Open

DRAM CONFIGURATION
Size
Bank 0
Bank 0A
Bank 0B
Bank 1
Bank 1A
512KB
(8) 41256
NONE
NONE
(8) 41256
NONE
512KB
NONE
(2) 44256
NONE
NONE
(2) 44256
640KB
(8) 41256
NONE
NONE
(8) 41256
NONE
640KB
NONE
(2) 44256
NONE
NONE
(2) 44256
1MB
(8) 41256
NONE
NONE
(8) 41256
NONE
1MB
NONE
(2) 44256
NONE
NONE
(2) 44256
2MB
(8) 411000
NONE
NONE
(8) 411000
NONE
4MB
(8) 411000
NONE
NONE
(8) 411000
NONE

DRAM CONFIGURATION (CON’T)
Size
Bank 1B
Bank 2
Bank 2A
Bank 3
Bank 3A
512KB
NONE
NONE
NONE
NONE
NONE
512KB
NONE
NONE
NONE
NONE
NONE
640KB
NONE
(8) 4164
NONE
(8) 4164
NONE
640KB
NONE
NONE
(2) 4464
NONE
(2) 4464
1MB
NONE
(8) 41256
NONE
(8) 41256
NONE
1MB
NONE
NONE
(2) 44256
NONE
(2) 44256
2MB
NONE
NONE
NONE
NONE
NONE
4MB
NONE
(8) 411000
NONE
(8) 411000
NONE
Note: See table below for parity configuration.

DRAM PARITY CONFIGURATION
Size
P 0
P 1
P 2
P 3
512KB
(1) 41256
(1) 41256
NONE
NONE
512KB
NONE
NONE
NONE
NONE
640KB
(1) 41256
(1) 41256
(1) 4164
(1) 4164
640KB
NONE
NONE
NONE
NONE
1MB
(1) 41256
(1) 41256
(1) 41256
(1) 41256
1MB
NONE
NONE
NONE
NONE

DRAM CONFIGURATION (SIMM)
Size
Bank 0B
Bank 1B
512KB
(2) 256K x 9
NONE
1MB
(2) 256K x 9
(2) 256K x 9
2MB
(2) 1M x 9
NONE
4MB
(2) 1M x 9
(2) 1M x 9

DRAM JUMPER CONFIGURATION
Size
J6
J7
J8
512KB
Closed
Closed
Closed
640KB
Closed
Closed
Open
1MB
Closed
Open
Closed
2MB
Closed
Open
Open
4MB
Open
Closed
Closed

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PRECISION 286 TURBO Motherboard Settings and Configuration

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Processor	80286 (exact location unidentified)
Processor Speed	10/12MHz
Chip Set	VLSI
Max. Onboard DRAM	4MB
Cache	None
BIOS	AMI/Award/Phoenix
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80287 (exact location unidentified)

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J13	Turbo LED	CN22
Speaker	J23	Reset switch	CN23
Turbo switch	CN20	Power LED & keylock	CN24

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
	Monitor type select color	J3	Closed
	Monitor type select monochrome	J3	Open
	Wait state select 0 wait states	J11	Closed
	Wait state select 1 wait state	J11	Open
	Parity enabled	J12	Closed
	Parity disabled	J12	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 0A	Bank 0B	Bank 1	Bank 1A
512KB	(8) 41256	NONE	NONE	(8) 41256	NONE
512KB	NONE	(2) 44256	NONE	NONE	(2) 44256
640KB	(8) 41256	NONE	NONE	(8) 41256	NONE
640KB	NONE	(2) 44256	NONE	NONE	(2) 44256
1MB	(8) 41256	NONE	NONE	(8) 41256	NONE
1MB	NONE	(2) 44256	NONE	NONE	(2) 44256
2MB	(8) 411000	NONE	NONE	(8) 411000	NONE
4MB	(8) 411000	NONE	NONE	(8) 411000	NONE

DRAM CONFIGURATION (CON’T)
Size	Bank 1B	Bank 2	Bank 2A	Bank 3	Bank 3A
512KB	NONE	NONE	NONE	NONE	NONE
512KB	NONE	NONE	NONE	NONE	NONE
640KB	NONE	(8) 4164	NONE	(8) 4164	NONE
640KB	NONE	NONE	(2) 4464	NONE	(2) 4464
1MB	NONE	(8) 41256	NONE	(8) 41256	NONE
1MB	NONE	NONE	(2) 44256	NONE	(2) 44256
2MB	NONE	NONE	NONE	NONE	NONE
4MB	NONE	(8) 411000	NONE	(8) 411000	NONE
Note: See table below for parity configuration.

DRAM PARITY CONFIGURATION
Size	P 0	P 1	P 2	P 3
512KB	(1) 41256	(1) 41256	NONE	NONE
512KB	NONE	NONE	NONE	NONE
640KB	(1) 41256	(1) 41256	(1) 4164	(1) 4164
640KB	NONE	NONE	NONE	NONE
1MB	(1) 41256	(1) 41256	(1) 41256	(1) 41256
1MB	NONE	NONE	NONE	NONE

DRAM CONFIGURATION (SIMM)
Size	Bank 0B	Bank 1B
512KB	(2) 256K x 9	NONE
1MB	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x 9	NONE
4MB	(2) 1M x 9	(2) 1M x 9

DRAM JUMPER CONFIGURATION
Size	J6	J7	J8
512KB	Closed	Closed	Closed
640KB	Closed	Closed	Open
1MB	Closed	Open	Closed
2MB	Closed	Open	Open
4MB	Open	Closed	Closed