MB486EISA Motherboard Settings and Configuration

Processor	80486DX
Processor Speed	33/50MHz
Chip Set	Intel
Max. Onboard DRAM	32MB
Cache	64/128KB (on external CPU/SRAM card)
BIOS	Phoenix
Dimensions	330.4mm x 218.4mm
I/O Options	32-bit external CPU/SRAM card slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Reset switch	J3	Speaker	J8
Power LED & keylock	J7	32-bit external CPU/SRAM card	S1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	I/O recovery disabled	J1	Open
	I/O recovery enabled	J1	Closed
»	System bus posted write disabled	J2	Open
	System bus posted write enabled	J2	Closed
»	Monitor type select monochrome	J6	Open
	Monitor type select color	J6	Closed
»	BIOS mode select normal operation (+5VPP)	J10	pins 1 & 2 closed
	BIOS mode select programmable (+12VPP)	J10	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3	Bank 4	Bank 5	Bank 6	Bank 7
1MB	256K x 36	NONE	NONE	NONE	NONE	NONE	NONE	NONE
2MB	256K x 36	256K x 36	NONE	NONE	NONE	NONE	NONE	NONE
3MB	256K x 36	256K x 36	256K x 36	NONE	NONE	NONE	NONE	NONE
4MB	256K x 36	256K x 36	256K x 36	256K x 36	NONE	NONE	NONE	NONE
4MB	1M x 36	NONE	NONE	NONE	NONE	NONE	NONE	NONE
5MB	1M x 36	NONE	NONE	NONE	256K x 36	NONE	NONE	NONE
6MB	1M x 36	NONE	NONE	NONE	256K x 36	256K x 36	NONE	NONE
7MB	1M x 36	NONE	NONE	NONE	256K x 36	256K x 36	256K x 36	NONE
8MB	1M x 36	NONE	NONE	NONE	256K x 36	256K x 36	256K x 36	256K x 36
8MB	1M x 36	1M x 36	NONE	NONE	NONE	NONE	NONE	NONE
9MB	1M x 36	1M x 36	NONE	NONE	256K x 36	NONE	NONE	NONE
10MB	1M x 36	1M x 36	NONE	NONE	256K x 36	256K x 36	NONE	NONE
11MB	1M x 36	1M x 36	NONE	NONE	256K x 36	256K x 36	256K x 36	NONE
12MB	1M x 36	1M x 36	NONE	NONE	256K x 36	256K x 36	256K x 36	256K x 36
12MB	1M x 36	1M x 36	1M x 36	NONE	NONE	NONE	NONE	NONE
13MB	1M x 36	1M x 36	1M x 36	NONE	256K x 36	NONE	NONE	NONE
14MB	1M x 36	1M x 36	1M x 36	NONE	256K x 36	256K x 36	NONE	NONE
15MB	1M x 36	1M x 36	1M x 36	NONE	256K x 36	256K x 36	256K x 36	NONE
16MB	1M x 36	1M x 36	1M x 36	NONE	256K x 36	256K x 36	256K x 36	256K x 36
16MB	1M x 36	1M x 36	1M x 36	1M x 36	NONE	NONE	NONE	NONE
17MB	1M x 36	1M x 36	1M x 36	1M x 36	256K x 36	NONE	NONE	NONE
18MB	1M x 36	1M x 36	1M x 36	1M x 36	256K x 36	256K x 36	NONE	NONE
19MB	1M x 36	1M x 36	1M x 36	1M x 36	256K x 36	256K x 36	256K x 36	NONE
20MB	1M x 36	1M x 36	1M x 36	1M x 36	256K x 36	256K x 36	256K x 36	256K x 36
20MB	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	NONE	NONE	NONE
24MB	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	NONE	NONE
28MB	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	NONE
32MB	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36	1M x 36

SRAM CONFIGURATION
Size	Intel Turbocache part number
64KB	82485MA
128KB	82485MB
Note:Intel Turbocache modules plug into CPU card located in slot S1.