ECA 4M33 Motherboard Settings and Configuration

Processor	80486SX/80486DX
Processor Speed	20/25/33MHz
Chip Set	UMC
Max. Onboard DRAM	64MB
Cache	64/128/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Power LED & keylock	J22
Turbo LED	J13	Turbo switch	J23
Speaker	J21	Reset switch	J24

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	J5	Open
	Monitor type select monochrome	J5	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(4) 256K x 9	NONE	NONE	NONE
2MB	(4) 256K x 9	(4) 256K x 9	NONE	NONE
3MB	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9	NONE
4MB	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE	NONE	NONE
5MB	(4) 256K x 9	(4) 1M x 9	NONE	NONE
6MB	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	NONE
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE
9MB	(4) 256K x 9	(4) 1M x 9	(4) 1M x 9	NONE
10MB	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	(4) 1M x 9
12MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	NONE
16MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE	NONE	NONE
20MB	(4) 1M x 9	(4) 4M x 9	NONE	NONE
24MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	NONE
32MB	(4) 4M x 9	(4) 4M x 9	NONE	NONE
36MB	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9	NONE
40MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9
48MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	NONE
64MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
64KB	(4) 8K x 8	(4) 8K x 8	(4) 8K x 4
128KB	(4) 32K x 8	NONE	(4) 32K x 4
256KB	(4) 32K x 8	(4) 32K x 8	(4) 32K x 4

CACHE JUMPER CONFIGURATION
Size	J17	J18	J19	J20	J25
64KB	Open	1 & 2	1 & 2	1 & 2	2 & 3
128KB	1 & 2	2 & 3	1 & 2	2 & 3	2 & 3
256KB	2 & 3	1 & 2	2 & 3	2 & 3	2 & 3
Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	J9	J10
80486SX	Closed	pins 2 & 3 closed
80486DX	Open	pins 1 & 2 closed