P386SX-16/20C OPTI (REV. D) Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	16/20MHz
Chip Set	OPTI
Video Chip Set	None
Maximum Onboard Memory	8MB
Maximum Video Memory	None
Cache	32KB
BIOS	AMI
Dimensions	330mm x 220mm
I/O Options	None
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Turbo LED	JP8
Speaker	J21	Reset switch	S2
External memory card	J22	Turbo switch	S3

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Monitor type select color	JP2	Closed
	Monitor type select monochrome	JP2	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(2) 256K x 9	None	None	None
1MB	(2) 256K x 9	(2) 256K x 9	None	None
2MB	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9
3MB	(2) 256K x 9	(2) 256K x 9	(2) 1M x 9	None
4MB	(2) 1M x 9	(2) 1M x 9	None	None
5MB	(2) 256K x 9	(2) 256K x 9	(2) 1M x 9	(2) 1M x 9
6MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	None
8MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9

CACHE CONFIGURATION
Size	Bank 0	TAG
32KB	(4) 8K x 8	(2) 16K x 4

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