SCAT-SX Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	20/25MHz
Chip Set	Unidentified
Max. Onboard DRAM	16MB
Cache	32KB (located on external cache card)
BIOS	Unidentified
Dimensions	220mm x 220mm
I/O Options	External cache card slot
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
Reset switch	J1	Power LED & keylock	J5
Turbo switch	J2	External battery	J7
Turbo LED	J3	External cache card slot	S1
Speaker	J4

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	P03	pins 2 & 3 closed
	Monitor type select monochrome	P03	pins 1 & 2 closed
»	CMOS memory normal operation	P04	Closed
	CMOS memory clear	P04	Open
»	CMOS memory normal operation (External battery)	P05	Open
	CMOS memory normal operation (Internal battery)	P05	Closed
»	Pipeline mode enabled	P18	Closed
	Pipeline mode disabled	P18	Open
»	NPU RDY signal enabled	P19	Closed
	NPU RDY signal disabled or NPU not installed	P19	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
1.5MB	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9	NONE
2MB	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x 9	NONE	NONE	NONE
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
8MB	(2) 4M x 9	NONE	NONE	NONE
12MB	(2) 1M x 9	(2) 1M x 9	(2) 4M x 9	NONE
16MB	(2) 4M x 9	(2) 4M x 9	NONE	NONE

CACHE JUMPER CONFIGURATION
Size	P11	P12	P13	P14	P15
16KB/DM	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2
16KB/TWS	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2
32KB/DM	pins 2 & 3	pins 2 & 3	pins 2 & 3	pins 2 & 3	pins 2 & 3
32KB/TWS	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2
Note:DM = Direct mapped and TWS = Two-wait associative. Pins designated should be in the closed position.