80386B Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	16/20/25MHz
Chip Set	C & T
Video Chip Set	None
Maximum Onboard Memory	16MB (8MB on external memory card)
Maximum Video Memory	None
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	External memory cards (2)
NPU Options	80287 (exact location unidentified)/80387SX/3167

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	J17	Turbo LED	J22
Speaker	J18	External memory cards	SL1 & SL2
External battery	J20

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Jumper information unavailable	J19	Unidentified
	80287 installed	JP1	Closed
	80287 not installed	JP1	Open
	Monitor type select color	JP3	Pins 1 & 2 closed
	Monitor type select monochrome	JP3	Pins 2 & 3 closed
	Jumper information unavailable	JP5	Unidentified

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(4) 256K x 9	None	None	None
2MB	(4) 256K x 9	(4) 256K x 9	None	None
4MB	(4) 256K x 9	(4) 256K x 9	(36) 41256	(36) 41256
4MB	(4) 1M x 9	None	None	None
8MB	(4) 1M x 9	(4) 1M x 9	None	None
10MB	(4) 1M x 9	(4) 1M x 9	(36) 41256	(36) 41256
16MB	(4) 1M x 9	(4) 1M x 9	(36) 411000	(36) 411000
Note: Banks 2 & 3 are located on the external memory card.

CPU SPEED SELECTION
Speed	J21
16MHz	Pins 1 & 2 closed
20MHz	Pins 2 & 3 closed
25MHz	Pins 2 & 3 closed

NPU TYPE SELECTION
Type	JP11	JP12
80387 installed	Closed	Closed
80387 not installed	Open	Open

DRAM JUMPER CONFIGURATION
Setting	JP1	JP2
Card configured as Bank 0 & 1	Pins 1 & 2, 4 & 5 closed	Pins 1 & 2, 4 & 5 closed
Card configured as Bank 2 & 3	Pins 2 & 3, 5 & 6 closed	Pins 2 & 3, 5 & 6 closed
Note: If all 4 banks are populated, memory card must be set as banks 2 & 3. Jumpers JP1 & JP2 are incorrectly labeled in the card. The correct label should read banks selection.