M290-25 (BA08)/M290-30 (BA278) Motherboard Settings and Configuration

Processor	AM286 (M290-30)/80286 (M290-25)
Processor Speed	20MHz
Chip Set	Topcat
Maximum Onboard Memory	17MB
Cache	None
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	Floppy drive interfaces (2), parallel port, PS/2 mouse port, serial port, VGA port, riser slot
NPU Options	80287

CONNECTIONS
Function	Label	Function	Label
PS/2 mouse port	CN1	Floppy drive interface	CN6
Serial port	CN2	Key connector	J1
Parallel port	CN3	Hard drive LED	J2
VGA port	CN4	Riser slot	SL1
Floppy drive interface	CN5

USER CONFIGURABLE SETTINGS
Setting		Label	Position
	Password normal operation	PA	Pins 1 & 2 closed
	Password clear	PA	Pins 2 & 3 closed
	CMOS memory normal operation	P1	Closed
	CMOS memory clear	P1	Open

DRAM
Size	Bank 0	Bank 1	Bank 2
1MB	1MB	None	None
3MB	1MB	(2) 1M x 9	None
5MB	1MB	(2) 1M x 9	(2) 1M x 9
9MB	1MB	(2) 4M x 9	None
17MB	1MB	(2) 4M x 9	(2) 4M x 9
Note: Bank 0 is factory installed and is not configurable.

VIDEO MEMORY

Note: The size and chip types are unidentified.