586SEM Motherboard Settings and Configuration

Processor	Pentium
Processor Speed	75/90/100/120/133/150MHz
Chip Set	SIS
Max. Onboard DRAM	128MB
Cache	256/512/1024KB
BIOS	Award
Dimensions	275mm x 220mm
I/O Options	Parallel port, serial ports (2), 32-bit PCI slots (4), green PC connector, floppy drive interface, IDE interfaces (2), cache slot, VRM module
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	J4	Power LED & keylock	J13
Serial port 2	J5	Speaker	J15
Floppy drive interface	J6	Reset switch	J16
Parallel port	J7	Turbo LED	J17
IDE interface 1	J8	IDE interface LED	J18
IDE interface 2	J9	32-bit PCI slots	PCI1 - PCI4
Green PC LED	J10	Cache slot	S1
Green PC connector	J11	VRM module	VRM
Turbo switch	J12

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Turbo switch connector select high speed	J12	Open
	Turbo switch connector select low speed	J12	Closed
»	PCI system clock ½	JP8	Open
	PCI system clock 33MHz and 50Mhz	JP8	Closed
»	Cache type select Asynchronous	JP12	pins 1 & 2 closed
	Cache type select Pipeline-Burst	JP12	pins 2 & 3 closed
»	Factory configured - do not alter	VRM	pins 6 & 7, 21 & 22 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
2MB	(2) 256K x 36	NONE
2MB	NONE	(2) 256K x 36
4MB	(2) 256K x 36	(2) 256K x 36
4MB	(2) 512K x 36	NONE
4MB	NONE	(2) 512K x 36
6MB	(2) 256K x 36	(2) 512K x 36
6MB	(2) 512K x 36	(2) 256K x 36
8MB	(2) 1M x 36	NONE
8MB	NONE	(2) 1M x 36
8MB	(2) 512K x 36	(2) 512K x 36
10MB	(2) 256K x 36	(2) 1M x 36
10MB	(2) 1M x 36	(2) 256K x 36
12MB	(2) 1M x 36	(2) 512K 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
16MB	NONE	(2) 2M x 36
18MB	(2) 256K x 36	(2) 2M x 36
18MB	(2) 2M x 36	(2) 256K x 36
20MB	(2) 512K x 36	(2) 2M x 36
20MB	(2) 2M x 36	(2) 512K x 36
24MB	(2) 1M x 36	(2) 2M x 36
24MB	(2) 2M x 36	(2) 1M x 36
32MB	(2) 4M x 36	NONE
34MB	(2) 4M x 36	(2) 256K x 36
32MB	NONE	(2) 4M x 36
32MB	(2) 2M x 36	(2) 2M x 36
34MB	(2) 256K x 36	(2) 4M x 36
36MB	(2) 4M x 36	(2) 512K x 36
36MB	(2) 512K x 36	(2) 4M x 36
40MB	(2) 1M x 36	(2) 4M x 36
40MB	(2) 4M x 36	(2) 1M x 36
48MB	(2) 4M x 36	(2) 2M x 36
48MB	(2) 2M x 36	(2) 4M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
64MB	(2) 4M x 36	(2) 4M x 36
64MB	(2) 8M x 36	NONE
64MB	NONE	(2) 8M x 36
66MB	(2) 256K x 36	(2) 8M x 36
66MB	(2) 8M x 36	(2) 256K x 36
68MB	(2) 512K x 36	(2) 8M x 36
68MB	(2) 8M x 36	(2) 512K x 36
72MB	(2) 1M x 36	(2) 8M x 36
72MB	(2) 8M x 36	(2) 1M x 36
80MB	(2) 2M x 36	(2) 8M x 36
80MB	(2) 8M x 36	(2) 2M x 36
96MB	(2) 4M x 36	(2) 8M x 36
96MB	(2) 8M x 36	(2) 4M x 36
128MB	(2) 8M x 36	(2) 8M x 36

CACHE CONFIGURATION
Size	Bank 0	TAG
256KB	(8) 32K x 8	(1) 8K x 8
512KB	(8) 64K x 8	(1) 32K x 8
1MB	(8) 128K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP13	JP14
256KB	pins 1 & 2 closed	pins 1 & 2 closed
512KB	pins 1 & 2 closed	pins 2 & 3 closed
1MB	pins 2 & 3 closed	pins 2 & 3 closed

CPU SPEED CONFIGURATION
Speed	JP9	JP10
75MHz	Closed	Closed
90MHz	Closed	Open
100MHz	Open	Closed
120MHz	Closed	Open
133MHz	Open	Closed
150MHz	Closed	Open

CPU VOLTAGE CONFIGURATION
Type	JP18/A	JP18/B	JP18/C
3.3v	Closed	Open	Open
3.4v	Open	Closed	Open
3.5v	Open	Open	Closed

SYSTEM CLOCK CONFIGURATION
Setting	JP19	JP20
1.5x	Open	Open
2x	Closed	Open
2.5x	Closed	Closed
3x	Open	Closed

CACHE VOLTAGE CONFIGURATION
Setting	JP11/A	JP11/B	JP11/C	JP11/D
Mix	Closed	Closed	Open	Open
3.3 v	Open	Open	Closed	Closed