SC58P VIO/S Motherboard Settings and Configuration

Processor	CX M1/Pentium
Processor Speed	75/90/100/120/133/150/166MHz
Chip Set	SIS
Video Chip Set	Cirrus Logic
Maximum Onboard Memory	128MB (EDO supported)
Maximum Video Memory	2MB
Cache	256/512KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot, IR connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse port	J2	Turbo LED	J14
Floppy drive interface	J5	Reset switch	J15
VGA feature connector	J6	IR connector	JP1
IDE interface 2	J7	Parallel port	P1
IDE interface 1	J8	Serial port 1	P2
IDE interface LED	J12 pins 1 & 2	Serial port 2	P3
Power LED	J12 pins 3 - 5	VGA port	P4
Chassis fan power	J13	Riser slot	SL1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	J9	Pins 1 & 2 closed
	CMOS memory clear	J9	Pins 2 & 3 closed
»	On board video enabled	JP3	Closed
	On board video disabled	JP3	Open
»	Flash BIOS voltage select 12v	JP11	Pins 1 & 2 closed
	Flash BIOS voltage select 5v	JP11	Pins 2 & 3 closed
»	Floppy drive write protect disabled	JP21	Pins 1 & 2 closed
	Floppy drive write protect enabled	JP21	Pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
8MB	(2) 1M x 36	None
16MB	(2) 2M x 36	None
16MB	(2) 1M x 36	(2) 1M x 36
24MB	(2) 2M x 36	(2) 1M x 36
32MB	(2) 4M x 36	None
32MB	(2) 2M x 36	(2) 2M x 36
40MB	(2) 4M x 36	(2) 1M x 36
48MB	(2) 4M x 36	(2) 2M x 36
64MB	(2) 8M x 36	None
64MB	(2) 4M x 36	(2) 4M x 36
72MB	(2) 8M x 36	(2) 1M x 36
80MB	(2) 8M x 36	(2) 2M x 36
96MB	(2) 8M x 36	(2) 4M x 36
128MB	(2) 8M x 36	(2) 8M x 36
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
None	None	None	(1) 32K x 8
256KB (A)	None	(8) 32K x 8	(1) 32K x 8
256KB (B)	(2) 32K x 32	None	(1) 32K x 8
512KB	None	(8) 64K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP13
None	Pins 1 & 2 closed
256KB (A)	Pins 1 & 2 closed
256KB (B)	Pins 1 & 2 closed
512KB	Pins 2 & 3 closed

VIDEO MEMORY CONFIGURATION
Size	Bank 0	Bank 1
1MB	(2) 256K x 16	None
2MB	(2) 256K x 16	(2) 256K x 16
Note: Bank 0 is factory installed and is not configurable.

CPU SPEED SELECTION (CYRIX)
CPU speed	Clock speed	Multiplier	JP14	JP17
120MHz	50MHz	2x	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP14	JP17
75MHz	50MHz	1.5x	1 & 2	Open
90MHz	60MHz	1.5x	3 & 4	Open
100MHz	66MHz	1.5x	1 & 2, 3 & 4	Open
120MHz	60MHz	2x	3 & 4	1 & 2
133MHz	66MHz	2x	1 & 2, 3 & 4	1 & 2
150MHz	60MHz	2.5x	3 & 4	1 & 2, 3 & 4
166MHz	66MHz	2.5x	1 & 2, 3 & 4	1 & 2, 3 & 4
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION
Type		JP22
	Cyrix	Pins 2 & 3 closed
»	Intel	Pins 1 & 2 closed

CPU VOLTAGE SELECTION
Voltage		JP19
	3.3v	Pins 1 & 2 closed
»	3.525v (VRE)	Pins 3 & 4 closed