286 SYSTEM BOARD Motherboard Settings and Configuration

Processor	80286
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

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	KLCK	Turbo LED	TBLED
Reset switch	RST	Turbo switch	TBSW
Speaker	SPK

USER CONFIGURABLE SETTINGS
Function		Jumper	Location
»	BIOS type select 27128	JP1	pins 2 & 3 closed
	BIOS type select 27256	JP1	pins 1 & 2 closed
»	CPU slow speed select 8MHz	JP6	Closed
	CPU slow speed select 6MHz	JP6	Open
»	Monitor type select color	JP7	Closed
	Monitor type select monochrome	JP7	Open
»	DRAM speed select 0 wait states	JP8	Closed
	DRAM speed select 1 wait state	JP8	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	P-1	Bank 2	P-2	Bank 3	Bank 4
512KB 1	(18) 41256	NONE	NONE	NONE	NONE	NONE	NONE
512KB 1	NONE	(4) 44256	(2) 41256	NONE	NONE	NONE	NONE
512KB 2	NONE	NONE	NONE	NONE	NONE	(2) 256K x 9	NONE
640KB 1	(18) 41256	NONE	NONE	(4) 4464	(2) 4164	NONE	NONE
640KB 1	NONE	(4) 44256	(2) 41256	(4) 4464	(2) 4164	NONE	NONE
640KB 2	(18) 4164	NONE	NONE	NONE	NONE	(2) 256K x 9	NONE
640KB 2	NONE	NONE	NONE	(4) 4464	(2) 4164	(2) 256K x 9	NONE
1MB 1	(18) 41256	NONE	NONE	(2) 44256	(4) 41256	NONE	NONE
1MB 1	(18) 41256	(4) 44256	(2) 41256	NONE	NONE	NONE	NONE
1MB 2	NONE	NONE	NONE	NONE	NONE	(2) 256K x 9	(2) 256K x 9
2MB 1	(18) 411000	NONE	NONE	NONE	NONE	NONE	NONE
2MB 2	NONE	NONE	NONE	NONE	NONE	(2) 1M x 9	NONE
4MB 1	(18) 411000	NONE	NONE	NONE	NONE	(2) 1M x 9	NONE
4MB 2	NONE	NONE	NONE	NONE	NONE	(2) 1M x 9	(2) 1M x 9
Note 1 :Set JP9, JP10, and JP11 pins 2 & 3 closed. Note 2 :Set JP9, JP10, and JP11 pins 1 & 2 closed.

DRAM JUMPER CONFIGURATION
Size	JP2	JP3	JP4
512KB	Closed	Closed	Closed
640KB	Closed	Closed	Open
1MB	Closed	Open	Closed
2MB	Closed	Open	Open
4MB	Open	Closed	Closed