586MI REV. 1.1/1.11/1.12 Motherboard Settings and Configuration

Processor	Pentium Overdrive/Pentium
Processor Speed	50/60/66MHz
Chip Set	Unidentified
Max. Onboard DRAM	128MB
Cache	64/128/256/512KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	32-bit VESA local bus slots (3), floppy drive interface, green PC connector, IDE interface, parallel port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 2	CN1	Turbo LED	J2
Serial port 1	CN2	External battery	J3
IDE interface	CN3	IDE interface LED	J4
Floppy drive interface	CN4	Power LED & keylock	J5
Parallel port	CN5	Speaker	J6
Green PC connector	CN6	Turbo switch	J7
Reset switch	J1	32-bit VESA local bus slots	SL1 - SL3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	JP7	N/A
»	Factory configured - do not alter	JP9	N/A
»	Factory configured - do not alter	JP10	N/A
»	Factory configured - do not alter	JP11	N/A
»	Factory configured - do not alter	JP12	N/A
»	Flash BIOS programming mode select normal operation	JP13	Open
	Flash BIOS programming mode select programming mode	JP13	pins 2 & 3 closed
»	Monitor type select monochrome/EGA/VGA	JP14	Open
	Monitor type select CGA	JP14	Closed
»	CMOS memory normal operation	JP15	pins 2 & 3 closed
	CMOS memory clear	JP15	pins 1 & 2 closed
»	Factory configured - do not alter	JP16	N/A
»	Factory configured - do not alter	JP20	N/A
»	Factory configured - do not alter	JP26	N/A
»	Factory configured - do not alter	JP27	N/A
»	Factory configured - do not alter	JP28	N/A
»	Factory configured - do not alter	JP29	N/A
»	VL-BUS IDE interface enabled	JP30	Open
	VL-BUS IDE interface enabled	JP30	Closed
»	Parallel port IRQ select IRQ7	JP32	pins 1 & 2 closed
	Parallel port IRQ select IRQ5	JP32	pins 2 & 3 closed
»	Factory configured - do not alter	JP33	N/A
»	Factory configured - do not alter	JP34	N/A

DRAM CONFIGURATION
Size	Bank 0	Bank 1
2MB	(2) 256K x 36	NONE
4MB	(2) 256K x 36	(2) 256K x 36
4MB	(2) 512K x 36	NONE
6MB	(2) 256K x 36	(2) 512K x 36
8MB	(2) 512K x 36	(2) 512K x 36
8MB	(2) 1M x 36	NONE
10MB	(2) 256K x 36	(2) 1M x 36
12MB	(2) 512K x 36	(2) 1M x 36
16MB	(2) 1M x 36	(2) 1M x 36
16MB	(2) 2M x 36	NONE
18MB	(2) 256K x 36	(2) 2M x 36
20MB	(2) 512K x 36	(2) 2M x 36
24MB	(2) 1M x 36	(2) 2M x 36
32MB	(2) 2M x 36	(2) 2M x 36
32MB	(2) 4M x 36	NONE
34MB	(2) 256K x 36	(2) 4M x 36
40MB	(2) 1M x 36	(2) 4M x 36

DRAM CONFIGURATION
Size	Bank 0	Bank 1
48MB	(2) 2M x 36	(2) 4M x 36
64MB	(2) 4M x 36	(2) 4M x 36
64MB	(2) 8M x 36	NONE
66MB	(2) 256K x 36	(2) 8M x 36
68MB	(2) 512K x 36	(2) 8M x 36
72MB	(2) 1M x 36	(2) 8M x 36
80MB	(2) 2M x 36	(2) 8M x 36
96MB	(2) 4M x 36	(2) 8M x 36
128MB	(2) 8M x 36	(2) 8M x 36

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

CACHE JUMPER CONFIGURATION
Size	JP1	JP2	JP3	JP4	JP5	JP6
64KB	1 & 2	1 & 2	1 & 2	Open	Open	Open
128KB	2 & 3	2 & 3	2 & 3	Open	Open	Closed
256KB	1 & 2	1 & 2	1 & 2	Open	Closed	Closed
512KB	2 & 3	2 & 3	2 & 3	Closed	Closed	Closed
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed	JO1	JO2	JO3
50MHz	Open	Open	Closed
60MHz	Open	Closed	Open
66MHz	Closed	Closed	Open

VESA WAIT STATE CONFIGURATION
Wait states	JP18
0 wait states	Open
1 wait state	Closed

BUS SPEED CONFIGURATION
CPU speed	JO5	JO6	JO7	JP19
<= 33MHz	Closed	Open	Open	Open
> 33MHz	Open	Open	Open	Closed

IDE RECOVERY TIME CONFIGURATION
Speed	JP21	JP22	JP23
0	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed
1	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 closed
2	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed