SI55P AIO (VER. 1.1) Motherboard Settings and Configuration

ELITEGROUP COMPUTER SYSTEMS, INC.

SI55P AIO (VER. 1.1)

Processor
Pentium
Processor Speed
75/90/100/120/133/150/166MHz
Chip Set
SIS
Video Chip Set
None
Maximum Onboard Memory
128MB (EDO supported)
Maximum Video Memory
None
Cache
256/512/1024KB
BIOS
Award
Dimensions
330mm x 218mm
I/O Options
32-bit PCI slots (2), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2), VRM connector, IR connector
NPU Options
None

CONNECTIONS
Function
Label
Function
Label
Serial port 1
J6
Power LED & keylock
J12 pins 11 - 15
Floppy drive interface
J7
Speaker
J12 pins 17 - 20
Parallel port
J8
IDE interface LED
J13
Serial port 2
J9
VRM connector
J15
IDE interface 2
J10
IR connector
JP2
IDE interface 1
J11
External battery
JP7
Green PC connector
J12 pins 4 & 5
Chassis fan power
JP23
Reset switch
J12 pins 9 & 10
32-bit PCI slots
PC1 - PC4

USER CONFIGURABLE SETTINGS
Setting
Label
Position

On board I/O enabled
JP1
Open

On board I/O disabled
JP1
Closed

Flash BIOS voltage select 12v
JP3
Pins 2 & 3 closed

BIOS voltage select 5v
JP3
Pins 1 & 2 closed

DRAM parity check enabled
JP8
Closed

DRAM parity check disabled
JP8
Open
»
Jumper information unavailable
JP20
Unavailable

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

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
34MB
(2) 4M x 36
(2) 256K 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) 4M x 36
(2) 1M x 36
40MB
(2) 1M x 36
(2) 4M x 36
48MB
(2) 4M x 36
(2) 2M x 36
48MB
(2) 2M x 36
(2) 4M x 36
64MB
(2) 8M x 36
None
64MB
(2) 4M x 36
(2) 4M x 36
66MB
(2) 8M x 36
(2) 256K x 36
66MB
(2) 256K x 36
(2) 8M x 36
68MB
(2) 8M x 36
(2) 512K x 36
68MB
(2) 512K x 36
(2) 8M x 36
72MB
(2) 8M x 36
(2) 1M x 36
72MB
(2) 1M x 36
(2) 8M x 36
80MB
(2) 8M x 36
(2) 2M x 36
80MB
(2) 2M x 36
(2) 8M x 36
96MB
(2) 8M x 36
(2) 4M x 36
96MB
(2) 4M x 36
(2) 8M x 36
128MB
(2) 16M x 36
None
128MB
(2) 8M x 36
(2) 8M x 36
130MB
(2) 16M x 36
(2) 256K x 36
132MB
(2) 16M x 36
(2) 512K x 36
136MB
(2) 16M x 36
(2) 1M x 36
144MB
(2) 16M x 36
(2) 2M x 36
160MB
(2) 16M x 36
(2) 4M x 36
192MB
(2) 16M x 36
(2) 8M x 36
256MB
(2) 16M x 36
(2) 16M x 36
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
TAG
256KB (A)
(4) 32K x 8
(4) 32K x 8
None
(1) 32K x 8
256KB (B)
None
None
(2) 32K x 32
(1) 32K x 8
512KB
(4) 64K x 8
(4) 64K x 8
None
(1) 32K x 8
1MB
(4) 128K x 8
(4) 128K x 8
None
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP18
JP19
256KB (A)
Pins 2 & 3 closed
Pins 2 & 3 closed
256KB (B)
Pins 2 & 3 closed
Pins 2 & 3 closed
512KB
Pins 2 & 3 closed
Pins 1 & 2 closed
1MB
Pins 1 & 2 closed
Pins 1 & 2 closed

CACHE VOLTAGE CONFIGURATION
Setting
JP14
JP15
JP16
Mixed voltage
Pins 1 & 2 closed
Pins 1 & 2 closed
Pins 1 & 2 closed
3.3v
Pins 2 & 3 closed
Pins 2 & 3 closed
Pins 2 & 3 closed

CPU SPEED SELECTION
CPU speed
Clock speed
Multiplier
J15
JP21
JP22
JP25
JP26
75MHz
50MHz
1.5x
6 & 7, 21 & 22
Open
Open
Closed
Open
90MHz
60MHz
1.5x
6 & 7, 21 & 22
Open
Open
Open
Closed
100MHz
66MHz
1.5x
6 & 7, 21 & 22
Open
Open
Closed
Closed
120MHz
60MHz
2x
6 & 7, 21 & 22
Open
Closed
Open
Closed
133MHz
66MHz
2x
6 & 7, 21 & 22
Open
Closed
Closed
Closed
150MHz
60MHz
2.5x
6 & 7, 21 & 22
Closed
Closed
Open
Closed
166MHz
66MHz
2.5x
6 & 7, 21 & 22
Closed
Closed
Closed
Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
JP17
3.3v
Pins 1 & 2 closed
3.385v
Pins 3 & 4 closed
3.525v
Pins 5 & 6 closed

DMA CHANNEL SELECTION
Channel
JP4
JP6
1
Pins 1 & 2 closed
Pins 1 & 2 closed
3
Pins 2 & 3 closed
Pins 2 & 3 closed

SERIAL PORT 2 SELECTION
Setting
JP2
Used as COM2
Pins 5 & 6, 7 & 8 closed
Used as IR connector
Open

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SI55P AIO (VER. 1.1) Motherboard Settings and Configuration

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Processor	Pentium
Processor Speed	75/90/100/120/133/150/166MHz
Chip Set	SIS
Video Chip Set	None
Maximum Onboard Memory	128MB (EDO supported)
Maximum Video Memory	None
Cache	256/512/1024KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	32-bit PCI slots (2), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2), VRM connector, IR connector
NPU Options	None

CONNECTIONS
Function	Label	Function	Label
Serial port 1	J6	Power LED & keylock	J12 pins 11 - 15
Floppy drive interface	J7	Speaker	J12 pins 17 - 20
Parallel port	J8	IDE interface LED	J13
Serial port 2	J9	VRM connector	J15
IDE interface 2	J10	IR connector	JP2
IDE interface 1	J11	External battery	JP7
Green PC connector	J12 pins 4 & 5	Chassis fan power	JP23
Reset switch	J12 pins 9 & 10	32-bit PCI slots	PC1 - PC4

USER CONFIGURABLE SETTINGS
Setting		Label	Position
	On board I/O enabled	JP1	Open
	On board I/O disabled	JP1	Closed
	Flash BIOS voltage select 12v	JP3	Pins 2 & 3 closed
	BIOS voltage select 5v	JP3	Pins 1 & 2 closed
	DRAM parity check enabled	JP8	Closed
	DRAM parity check disabled	JP8	Open
»	Jumper information unavailable	JP20	Unavailable

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

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
34MB	(2) 4M x 36	(2) 256K 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) 4M x 36	(2) 1M x 36
40MB	(2) 1M x 36	(2) 4M x 36
48MB	(2) 4M x 36	(2) 2M x 36
48MB	(2) 2M x 36	(2) 4M x 36
64MB	(2) 8M x 36	None
64MB	(2) 4M x 36	(2) 4M x 36
66MB	(2) 8M x 36	(2) 256K x 36
66MB	(2) 256K x 36	(2) 8M x 36
68MB	(2) 8M x 36	(2) 512K x 36
68MB	(2) 512K x 36	(2) 8M x 36
72MB	(2) 8M x 36	(2) 1M x 36
72MB	(2) 1M x 36	(2) 8M x 36
80MB	(2) 8M x 36	(2) 2M x 36
80MB	(2) 2M x 36	(2) 8M x 36
96MB	(2) 8M x 36	(2) 4M x 36
96MB	(2) 4M x 36	(2) 8M x 36
128MB	(2) 16M x 36	None
128MB	(2) 8M x 36	(2) 8M x 36
130MB	(2) 16M x 36	(2) 256K x 36
132MB	(2) 16M x 36	(2) 512K x 36
136MB	(2) 16M x 36	(2) 1M x 36
144MB	(2) 16M x 36	(2) 2M x 36
160MB	(2) 16M x 36	(2) 4M x 36
192MB	(2) 16M x 36	(2) 8M x 36
256MB	(2) 16M x 36	(2) 16M x 36
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	TAG
256KB (A)	(4) 32K x 8	(4) 32K x 8	None	(1) 32K x 8
256KB (B)	None	None	(2) 32K x 32	(1) 32K x 8
512KB	(4) 64K x 8	(4) 64K x 8	None	(1) 32K x 8
1MB	(4) 128K x 8	(4) 128K x 8	None	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP18	JP19
256KB (A)	Pins 2 & 3 closed	Pins 2 & 3 closed
256KB (B)	Pins 2 & 3 closed	Pins 2 & 3 closed
512KB	Pins 2 & 3 closed	Pins 1 & 2 closed
1MB	Pins 1 & 2 closed	Pins 1 & 2 closed

CACHE VOLTAGE CONFIGURATION
Setting	JP14	JP15	JP16
Mixed voltage	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
3.3v	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

CPU SPEED SELECTION
CPU speed	Clock speed	Multiplier	J15	JP21	JP22	JP25	JP26
75MHz	50MHz	1.5x	6 & 7, 21 & 22	Open	Open	Closed	Open
90MHz	60MHz	1.5x	6 & 7, 21 & 22	Open	Open	Open	Closed
100MHz	66MHz	1.5x	6 & 7, 21 & 22	Open	Open	Closed	Closed
120MHz	60MHz	2x	6 & 7, 21 & 22	Open	Closed	Open	Closed
133MHz	66MHz	2x	6 & 7, 21 & 22	Open	Closed	Closed	Closed
150MHz	60MHz	2.5x	6 & 7, 21 & 22	Closed	Closed	Open	Closed
166MHz	66MHz	2.5x	6 & 7, 21 & 22	Closed	Closed	Closed	Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage	JP17
3.3v	Pins 1 & 2 closed
3.385v	Pins 3 & 4 closed
3.525v	Pins 5 & 6 closed

DMA CHANNEL SELECTION
Channel	JP4	JP6
1	Pins 1 & 2 closed	Pins 1 & 2 closed
3	Pins 2 & 3 closed	Pins 2 & 3 closed

SERIAL PORT 2 SELECTION
Setting	JP2
Used as COM2	Pins 5 & 6, 7 & 8 closed
Used as IR connector	Open