SYSTEM 40XX/XE Motherboard Settings and Configuration

Processor	80486DX/80486DX2
Processor Speed	33/50(internal)/66(internal)MHz
Chip Set	Intel
Video Chip Set	Unidentified
Maximum Onboard Memory	128MB
Maximum Video Memory	1MB
Cache	Unidentified
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), feature connector, VGA port, riser slot, cache slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Feature connector	CN1	External battery	JBAT
PS/2 mouse port	CN2	Front panel connector	JCTRL
Serial port 2	CN3	IDE interface LED	JLED
Serial port 1	CN4	Power staging connector (out)	PROUT
Parallel port	CN5	Power staging connector (in)	PWRIN
VGA port	CN6	Riser slot	SL1
IDE interface	CN7	Cache slot	SL2
Floppy drive interface	CN8

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	30MHZ	Unidentified
»	AT ROM card disabled	ATRM	Open
	AT ROM card enabled	ATRM	Closed
»	System/video BIOS normal operation	CLRB	Open
	System/video BIOS clear	CLRB	Closed
»	Flash BIOS normal operation	CLRE	Open
	Flash BIOS clear	CLRE	Closed
»	Factory configured - do not alter	CN9	Unidentified
»	Flash BIOS upgradable with a diskette	EFLU	Closed
	Flash BIOS not upgradable with a diskette	EFLU	Open
»	Password enabled	EPWD	Closed
	Password disabled	EPWD	Open
»	On board video enabled	EVGA	Closed
	On board video disabled	EVGA	Open
»	I/O controller address select 26Eh - 26Fh	IOALT	Open
	I/O controller address select 398h - 398Fh	IOALT	Closed
»	Factory configured - do not alter	J1	Unidentified
»	Factory configured - do not alter	J2	Unidentified
»	Factory configured - do not alter	J3	Unidentified

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
4MB	(1) 512K x 36	(1) 512K x 36	None	None
6MB	(1) 1M x 36	(1) 512K x 36	None	None
8MB	(1) 1M x 36	(1) 1M x 36	None	None
12MB	(1) 1M x 36	(1) 1M x 36	(1) 512K x 36	(1) 512K x 36
16MB	(1) 2M x 36	(1) 2M x 36	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
20MB	(1) 2M x 36	(1) 2M x 36	(1) 512K x 36	(1) 512K x 36
24MB	(1) 2M x 36	(1) 2M x 36	(1) 1M x 36	(1) 1M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
32MB	(1) 4M x 36	(1) 4M x 36	None	None
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
36MB	(1) 4M x 36	(1) 4M x 36	(1) 512K x 36	(1) 512K x 36
40MB	(1) 4M x 36	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36
48MB	(1) 4M x 36	(1) 4M x 36	(1) 2M x 36	(1) 2M x 36
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	(1) 8M x 36	None	None
68MB	(1) 8M x 36	(1) 8M x 36	(1) 512K x 36	(1) 512K x 36
72MB	(1) 8M x 36	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36
80MB	(1) 8M x 36	(1) 8M x 36	(1) 2M x 36	(1) 2M x 36
96MB	(1) 8M x 36	(1) 8M x 36	(1) 4M x 36	(1) 4M x 36
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
Note: The location of banks 0, 1, 2 & 3 are unidentified.

CACHE CONFIGURATION

Note: The size of the cache modules are unidentified.

VIDEO MEMORY CONFIGURATION
Size	Bank 0	Bank 1
512KB	512KB	None
1MB	512KB	512KB
Note: The location of banks 0 & 1 are unidentified. The size of the chips are unidentified.

CPU SPEED SELECTION
Speed	25MHZ	33MHZ
33MHz	Open	Closed
50iMHz	Closed	Open
66iMHz	Open	Closed