MAXLOGIC 486DX-33 (EV-18193) Motherboard Settings and Configuration

Processor	80486SX/80486DX/80486DX2
Processor Speed	25/33/50(internal)/50/66(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	32MB
Cache	64/128/256/512KB
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker	J1	Reset switch	J4
Chassis fan power	J2	Turbo LED	JP1
Power LED & keylock	J3	External battery	JP5

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	JP2	N/A
»	Factory configured - do not alter	JP3	N/A
»	Factory configured - do not alter	JP4	N/A

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
5MB	(4) 256K x 9	(4) 1M x 9
5MB	(4) 1M x 9	(4) 256K x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
17MB	(4) 256K x 9	(4) 4M x 9
17MB	(4) 4M x 9	(4) 256K x 9
20MB	(4) 1M x 9	(4) 4M x 9
20MB	(4) 4M x 9	(4) 1M x 9
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
64KB	(8) 8K x 8	NONE	(1) 8K x 8
128KB	(8) 8K x 8	(8) 8K x 8	(1) 8K x 8
256KB	(8) 32K x 8	NONE	(1) 32K x 8
512KB	(8) 32K x 8	(8) 32K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP6	JP7	JP8	JP9	JP10
64KB	Open	pins 2 & 3 closed	Open	Open	Open
128KB	Closed	pins 2 & 3 closed	Open	Open	Closed
256KB	Closed	pins 2 & 3 closed	Open	Closed	Closed
512KB	Closed	pins 1 & 2 closed	Closed	Closed	Closed

MISCELLANEOUS TECHNICAL NOTE

Note: The orientation of pin 1 is unidentified.