386 CACHE 25/33 Motherboard Settings and Configuration

Processor	80386DX
Processor Speed	25/33MHz
Chip Set	UMC
Max. Onboard DRAM	8MB
Cache	64KB
BIOS	AMI
Dimensions	355mm x 304mm
I/O Options	32-bit external memory card slot
NPU Options	80387

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	K1	Turbo LED	K8
Speaker	K4	Turbo switch	K9
Power LED & keylock	K5	32-bit external memory card	S1
Reset switch	K7

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	NPU disabled	J2	pins 2 & 3, 5 & 6 closed
	NPU enabled	J2	pins 1 & 2, 4 & 5 closed
»	Upper memory enabled (384KB)	J3 pins 3 & 6	Open
	Upper memory disabled (384KB)	J3 pins 3 & 6	Closed
»	Monitor type select color	J4	pins 2 & 3 closed
	Monitor type select monochrome	J4	pins 1 & 2 closed
»	Memory expansion board not installed	J5	pins 1 & 2, 4 & 5 closed
	Memory expansion board installed	J5	pins 2 & 3, 5 & 6 closed

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
8MB	(4) 1M x 9	(4) 1M x 9

DRAM JUMPER CONFIGURATION
Size	J3
1MB	pins 1 & 4, 2 & 5 closed
2MB	pins 2 & 5 closed
4MB	pins 1 & 4 closed
8MB	Open

BIOS CONFIGURATION
Size	J1
27256	pins 1 & 2, 5 & 6 closed
27512	pins 1 & 2, 4 & 5 closed
27128	pins 2 & 3, 5 & 6 closed