P386 MAINBOARD Motherboard Settings and Configuration

Processor	80386
Processor Speed	20/25MHz
Chip Set	C & T
Video Chip Set	None
Maximum Onboard Memory	16MB (8 MB on external memory card)
Maximum Video Memory	None
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	External memory card
NPU Options	80287/80387

CONNECTIONS
Purpose	Location	Purpose	Location
Auxiliary keyboard connector	J2	Turbo LED	J16
External battery	J3	Speaker	J17
Reset switch	J10	Power LED & keylock	J18
Turbo switch	J15	External memory card	SL1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	J4	Open
	CMOS memory clear	J4	Closed
	Monitor type select color	J5	Pins 1 & 2 closed
	Monitor type select monochrome	J5	Pins 2 & 3 closed

DRAM CONFIGURATION
Size	Start Bank	Bank 0	Bank 1	Bank 2	Bank 3
1MB (A)	SIP	(4) 256K x 9	None	None	None
1MB (B)	DIP	None	None	(8) 44256	None
2MB (A)	SIP	(4) 256K x 9	(4) 256K x 9	None	None
2MB (B)	DIP	None	None	(8) 44256	(8) 44256
4MB (A)	SIP	(4) 256K x 9	(4) 256K x 9	(8) 44256	(8) 44256
4MB (B)	DIP	(4) 256K x 9	(4) 256K x 9	(8) 44256	(8) 44256
4MB (C)	SIP	(4) 1M x 9	None	None	None
8MB	SIP	(4) 1M x 9	(4) 1M x 9	None	None
10MB (A)	SIP	(4) 1M x 9	(4) 1M x 9	(8) 44256	(8) 44256
10MB (B)	DIP	(4) 1M x 9	(4) 1M x 9	(8) 44256	(8) 44256

DRAM PARITY CONFIGURATION
Size	Start Bank	P 2	P 3
1MB (A)	SIP	None	None
1MB (B)	DIP	(4) 41256	None
2MB (A)	SIP	None	None
2MB (B)	DIP	(4) 41256	(4) 41256
4MB (A)	SIP	(4) 41256	(4) 41256
4MB (B)	DIP	(4) 41256	(4) 41256
4MB (C)	SIP	None	None
8MB	SIP	None	None
10MB (A)	SIP	(4) 41256	(4) 41256
10MB (B)	DIP	(4) 41256	(4) 41256

DRAM JUMPER CONFIGURATION
Size	J6	J7	J8	J9
1MB (A)	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4
1MB (B)	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3, 4 & 5
2MB (A)	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4
2MB (B)	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3, 4 & 5
4MB (A)	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4
4MB (B)	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3, 4 & 5
4MB (C)	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4
8MB	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4
10MB (A)	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4
10MB (B)	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3, 4 & 5
Note: Pins designated should be in the closed position.

NPU SELECTION
Setting	J11	J12
None	Pins 2 & 3 closed	Open
80287	Pins 2 & 3 closed	Open
80387	Pins 1 & 2 closed	Closed