PREMIUM/286 Motherboard Settings and Configuration

Processor	80286
Processor Speed	10MHz
Chip Set	AST
Max. Onboard DRAM	None (2/4 or 8/16MB on external memory card(s))
Cache	None
BIOS	AST
Dimensions	330mm x 218mm
I/O Options	32-bit external memory/CPU card slot (2) Floppy drive interface Parallel port Serial port
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
32-bit external memory/CPU card	CN1	Front panel switches & LEDs	J23
32-bit external memory/CPU card	CN2	Speaker	J24
Floppy drive interface (A: and B:)	J19	Optional ROM (odd)	U11
Third floppy drive interface	J20	Optional ROM (even)	U13
External battery	J22

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	COM1	Keyboard	KYBD
Parallel port	LPT1

SERIAL PORT CONFIGURATION
Serial Port (COM1)	Jumper E22-E23	Jumper E28	Jumper E29
COM1: using IRQ4	pins 1 & 2 closed	closed	open
COM2: using IRQ3	pins 2 & 3 closed	open	closed

PARALLEL PORT CONFIGURATION
Parallel Port (LPT)	Jumper E24	Jumper E25	Jumper E26	Jumper E27
LPT1: using IRQ7	closed	open	closed	open
LPT2: using IRQ7	open	closed	open	closed

BIOS TYPE CONFIGURATION
BIOS Type	Jumper E3	Jumper E4	Jumper E5
27128	open	open	closed
27256	closed	closed	open

OPTIONAL ROM TYPE CONFIGURATION
ROM Type	Address	Jumper E9	Jumper E10	Jumper E11	Jumper E12
27128	F000-F7FFh	open	open	closed	open
27128	E800-EFFFh	open	open	open	closed
27256	E000-EFFFh	closed	closed	open	open

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
	NPU speed select 8MHz	E1 & E16 E15	open closed
	NPU speed select 5MHz	E1 & E16 E15	closed open
»	BIOS wait state select one	E2	open
	BIOS wait states select zero	E2	closed
»	Latched PROM BIOS disabled	E6	open
	Latched PROM BIOS enabled	E6	closed
»	Latched PROM BIOS (for optional ROMs) disabled	E7 and E14	E7 open, E14 closed
	Latched PROM BIOS (for optional ROMs) enabled	E7 and E14	E7 closed, E14 closed
»	Optional ROM wait state select one	E8	open
	Optional ROM wait states select zero	E8	closed
»	Factory configured - do not alter	E13	open
»	I/O bus wait states select two (at 10MHz operation)	E17	closed
	I/O bus wait state select one (at 10MHz operation)	E17	open
»	Factory configured - do not alter	E18	open
»	Factory configured - do not alter	E19-E20	closed
»	Factory configured - do not alter	E21	closed
»	Factory configured - do not alter	E31-E32	pins 1 & 2 closed
»	Floppy drive interface enabled	E33	open
	Floppy drive interface disabled	E33	closed
»	Early Address Latch Enabled (#EALE) signal	E40	closed
	Buffered Address Latch Enable (#BALE) signal	E40	open

USER CONFIGURABLE SETTINGS FOR FASTRAM MEMORY BOARD
Function		Jumper/Switch	Position
»	Parity check enabled	E1	closed
	Parity check disabled	E1	open
»	Wait states select zero	E2	closed
	Wait state select one	E2	open
»	Page mode disabled	SW1/switch 5	closed
	Page mode enabled	SW1/switch 5	open
»	Board installed select first FASTram board installed	SW1/switch 6	closed
	Board installed select second FASTram board installed	SW1/switch 6	open

DRAM CONFIGURATION FOR FASTRAM MEMORY BOARD
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(18) 41256	NONE	NONE	NONE
1MB	(18) 41256	(18) 41256	NONE	NONE
1.5MB	(18) 41256	(18) 41256	(18) 41256	NONE
2MB	(18) 41256	(18) 41256	(18) 41256	(18) 41256

DRAM SWITCH CONFIGURATION FOR FASTRAM MEMORY BOARD
Recognized by System	SW1/switch 1	SW1/switch 2	SW1/switch 3	SW1/switch 4
128KB	closed	closed	closed	closed
256KB	open	closed	closed	closed
384KB	closed	open	closed	closed
512KB	open	open	closed	closed
640KB	closed	closed	open	closed
768KB	open	closed	open	closed
896KB	closed	open	open	closed
1024KB	open	open	open	closed
1152KB	closed	closed	closed	open
1280KB	open	closed	closed	open
1408KB	closed	open	closed	open
1536KB	open	open	closed	open
1664KB	closed	closed	open	open
1792KB	open	closed	open	open
1920KB	closed	open	open	open
2048KB	open	open	open	open

BASE I/O ADDRESS CONFIGURATION FOR FASTRAM MEMORY BOARD
Base I/O Address	SW1/switch 7	SW1/switch 8	SW1/switch 9	SW1/switch 10
0208h	closed	closed	closed	closed
0218h 1	open	closed	closed	closed
0258h 2	open	closed	open	closed
0268h	closed	open	open	closed
02A8h	closed	open	closed	open
02B8h	open	open	closed	open
02E8h	closed	open	open	open
Note 1 :This setting is recommended when this is the first FASTram Memory Board installed. Note 2 :This setting is recommended when this is the second FASTram Memory Board installed.

USER CONFIGURABLE SETTINGS FOR ADVANCED FASTRAM MEMORY BOARD
Function		Jumper	Position
»	Factory configured - do not alter	E0-E1	pins 2 & 3 closed
»	Board installed select first FASTram board installed	E2 E4	open closed
	Board installed select second FASTram board installed	E2 E4	closed open
»	Memory installed select as expanded	E3	closed
	Memory installed select as paged	E3	open
Note:Parity, wait states, size, and base I/O address are set using the software configuration utility.

DRAM CONFIGURATION FOR ADVANCED FASTRAM MEMORY BOARD
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