IT386LM CACHE Motherboard Settings and Configuration

Processor	80386DX
Processor Speed	33/40MHz
Chip Set	Headland
Max. Onboard DRAM	32MB
Cache	32/128KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80387/3167

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	JP105	Turbo LED	P3
Auxiliary keyboard	JP107	Reset switch	P7
Speaker	P1	Turbo switch	P8
Power LED & keylock	P2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	I/O recovery delay (for slower cards) disabled	JP13	Open
	I/O recovery delay (for slower cards) enabled	JP13	Closed
»	CPU speed select 33MHz	JP101	pins 1 & 2 closed
	CPU speed select 40MHz	JP101	pins 2 & 3 closed
»	NPU mode select synchronous with CPU	JP102	Open
	NPU mode select asynchronous with CPU	JP102	Closed
»	CMOS memory normal operation	JP104	Open
	CMOS memory clear	JP104	Closed
»	Battery select internal 3.6VDC with current limiting resistor	JP106	pins 1 & 3 closed
	Battery select internal 4.5VDC alkaline	JP106	pins 3 & 4 closed
	Battery select external 6VDC	JP106	pins 2 & 4 closed
	Battery select external 6VDC with current limiting resistor	JP106	pins 1 & 2 closed
»	Monitor type select color	P4	Closed
	Monitor type select monochrome	P4	Open
Note:Jumpers JP101 and JP102 may not be present on all board revisions.

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
5MB	(4) 256K x 9	(4) 1M x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
17MB	(4) 256K x 9	(4) 4M x 9
20MB	(4) 1M x 9	(4) 4M x 9
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0
32KB	(4) 8K x 8
128KB	(4) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP10
32KB	Closed
128KB	Open
Note:Jumper JP10 may be named JP100 on some board revisions.