TOWER486 Motherboard Settings and Configuration

Processor	80486SX
Processor Speed	25/33MHz
Chip Set	Unidentified
Max. Onboard DRAM	64MB (4MB or 8MB installed on board)
Cache	None
BIOS	Unidentified
Dimensions	355mm x 305mm
I/O Options	External memory card, floppy drive interface, IDE interface
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
IDE interface	CN1	External battery	J8
Floppy drive interface	CN2	External memory card	SL1

USER CONFIGURABLE SETTINGS
Function		Switch	Position
»	256KB - 512KB memory override disabled	SW1/1	Off
	256KB - 512KB memory override enabled	SW1/1	On
»	512KB - 640KB memory override disabled	SW1/2	Off
	512KB - 640KB memory override enabled	SW1/2	On
»	Security enabled	SW1/3	Off
	Security disabled	SW1/3	On
»	Factory configured - do not alter	SW1/4	Off

DRAM CONFIGURATION (EXTERNAL CARD)
Size	Bank 0	Bank 1
2MB	(8) 256K x 9	NONE
4MB	(8) 256K x 9	(8) 256K x 9
8MB	(8) 1M x 9	NONE
10MB	(8) 1M x 9	(8) 256K x 9
16MB	(8) 1M x 9	(8) 1M x 9
32MB	(8) 4M x 9	NONE
34MB	(8) 4M x 9	(8) 256K x 9
40MB	(8) 4M x 9	(8) 1M x 9
64MB	(8) 4M x 9	(8) 4M x 9
Note: Board is factory installed with either 4MB or 8MB. The location of the memory is unidentified. If memory card is installed, the on board memory is disabled.