P/I-P55SP4 Motherboard Settings and Configuration

ASUS COMPUTER INTERNATIONAL

P/I-P55SP4

Processor
Pentium
Processor Speed
75/90/100/120/133/150/166MHz
Chip Set
SIS
Max. Onboard DRAM
512MB
Cache
256/512/1024KB
BIOS
Award
Dimensions
330mm x 218mm
I/O Options
Parallel port, serial ports (2), 32-bit PCI slots (4), green PC connector, floppy drive interface, IDE interfaces (2), cache slot, MediaBus slot, infrared connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
PS/2 mouse interface
CN1
Green PC connector
J1 pins 14 & 15
Serial port 2
CN2
Turbo switch
J1 pins 16 & 17
Serial port 1
CN3
Reset switch
J1 pins 19 & 20
Parallel port
CN4
Green PC connector
JP1
Floppy drive interface
CN5
Chassis fan power
JP26
IDE interface 1
CN6
IDE interface LED
JP27
IDE interface 2
CN7
Infrared connector
JP31
Power LED & keylock
J1 pins 1 - 5
32-bit PCI slots
PC1 - PC4
Speaker
J1 pins 7 - 10
MediaBus slot
SL1
Turbo LED
J1 pins 12 & 13
Cache slot
SL2

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
PS/2 mouse port disabled
JP5
pins 1 & 2 closed

PS/2 mouse port enabled
JP5
pins 2 & 3 closed
»
Flash BIOS boot block protected
JP16
pins 1 & 2 closed

Flash BIOS boot block programming enabled
JP16
pins 2 & 3 closed
»
On board I/O enabled
JP1C
pins 1 & 2 closed

On board I/O disabled
JP1C
pins 2 & 3 closed

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
6MB
(2) 512K x 36
(2) 256K 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
10MB
(2) 1M x 36
(2) 256K x 36
12MB
(2) 512K x 36
(2) 1M x 36
12MB
(2) 1M x 36
(2) 512K 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
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) 2M x 36
(2) 2M x 36
32MB
(2) 4M x 36
NONE
34MB
(2) 256K x 36
(2) 4M x 36
34MB
(2) 4M x 36
(2) 256K x 36
36MB
(2) 512K x 36
(2) 4M x 36
36MB
(2) 4M x 36
(2) 512K x 36
40MB
(2) 1M x 36
(2) 4M x 36
40MB
(2) 4M x 36
(2) 1M x 36
48MB
(2) 2M x 36
(2) 4M x 36
48MB
(2) 4M x 36
(2) 2M 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
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

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
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
128MB
(2) 16M x 36
NONE
130MB
(2) 256K x 36
(2) 16M x 36
130MB
(2) 16M x 36
(2) 256K x 36
132MB
(2) 512K x 36
(2) 16M x 36
132MB
(2) 16M x 36
(2) 512K x 36
136MB
(2) 1M x 36
(2) 16M x 36
136MB
(2) 16M x 36
(2) 1M x 36
144MB
(2) 2M x 36
(2) 16M x 36
144MB
(2) 16M x 36
(2) 2M x 36
160MB
(2) 4M x 36
(2) 16M x 36
160MB
(2) 16M x 36
(2) 4M x 36
192MB
(2) 8M x 36
(2) 16M x 36
192MB
(2) 16M x 36
(2) 8M x 36
256MB
(2) 16M x 36
(2) 16M x 36
256MB
(2) 32M x 36
NONE
258MB
(2) 256K x 36
(2) 32M x 36
258MB
(2) 32M x 36
(2) 256K x 36
260MB
(2) 512K x 36
(2) 32M x 36
260MB
(2) 32M x 36
(2) 512K x 36
264MB
(2) 1M x 36
(2) 32M x 36
264MB
(2) 32M x 36
(2) 1M x 36
272MB
(2) 2M x 36
(2) 32M x 36
272MB
(2) 32M x 36
(2) 2M x 36
288MB
(2) 4M x 36
(2) 32M x 36
288MB
(2) 32M x 36
(2) 4M x 36
320MB
(2) 8M x 36
(2) 32M x 36
320MB
(2) 32M x 36
(2) 8M x 36
384MB
(2) 16M x 36
(2) 32M x 36
384MB
(2) 32M x 36
(2) 16M x 36
512MB
(2) 32M x 36
(2) 32M x 36

CACHE CONFIGURATION
Size
Bank 0
Bank 1
TAG
SL2
256KB
(4) 32K x 8
(4) 32K x 8
(1) 8K or (1) 32K x 8
Card not installed
256KB
NONE
NONE
NONE
Card installed
512KB
(4) 64K x 8
(4) 64K x 8
(1) 8K or (1) 32K x 8
Card not installed
512KB
NONE
NONE
NONE
Card installed
1MB
(4) 128K x 8
(4) 128K x 8
(1) 8K or (1) 32K x 8
Card not installed
1MB
NONE
NONE
NONE
Card installed

CACHE JUMPER CONFIGURATION
Size
JP10
JP11
256KB
pins 1 & 2 closed
pins 1 & 2 closed
512KB
pins 2 & 3 closed
pins 1 & 2 closed
1MB
pins 2 & 3 closed
pins 2 & 3 closed

CACHE TYPE CONFIGURATION
Type
JP6
JP7
JP8
JP9
3.3v cache
Open
Open
Closed
Closed
Mixed mode cache
Closed
Closed
Open
Open

CPU SPEED CONFIGURATION
Speed
JP12
JP13
JP14
75MHz
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed
90MHz
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
100MHz
pins 2 & 3 closed
pins 1 & 2 closed
pins 1 & 2 closed
120MHz
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
133MHz
pins 2 & 3 closed
pins 1 & 2 closed
pins 1 & 2 closed
150MHz
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
166MHz
pins 2 & 3 closed
pins 1 & 2 closed
pins 1 & 2 closed

CPU CLOCK SPEED CONFIGURATION
Speed
JP20
JP21
1.5x
Open
Open
2x
Open
Closed
2.5x
Closed
Closed
3x
Closed
Open

VOLTAGE REGULATOR CONFIGURATION
Type
JP22
JP23
JP28
JP29
STD/VR
Closed
Open
Closed
Open
VRE
Open
Closed
Open
Closed

VOLTAGE REGULATOR TYPE CONFIGURATION
Setting
JP32
JP33
JP34
JP35
Not installed
Closed
Closed
Closed
Closed
Installed
Open
Open
Open
Open
Note: The location of the above jumpers are unidentified.

UART/IR CONFIGURATION
Speed
JP1A
JP1B
UART2
pins 1 & 2 closed
pins 1 & 2 closed
IR
pins 2 & 3 closed
pins 2 & 3 closed

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P/I-P55SP4 Motherboard Settings and Configuration

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Processor	Pentium
Processor Speed	75/90/100/120/133/150/166MHz
Chip Set	SIS
Max. Onboard DRAM	512MB
Cache	256/512/1024KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	Parallel port, serial ports (2), 32-bit PCI slots (4), green PC connector, floppy drive interface, IDE interfaces (2), cache slot, MediaBus slot, infrared connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse interface	CN1	Green PC connector	J1 pins 14 & 15
Serial port 2	CN2	Turbo switch	J1 pins 16 & 17
Serial port 1	CN3	Reset switch	J1 pins 19 & 20
Parallel port	CN4	Green PC connector	JP1
Floppy drive interface	CN5	Chassis fan power	JP26
IDE interface 1	CN6	IDE interface LED	JP27
IDE interface 2	CN7	Infrared connector	JP31
Power LED & keylock	J1 pins 1 - 5	32-bit PCI slots	PC1 - PC4
Speaker	J1 pins 7 - 10	MediaBus slot	SL1
Turbo LED	J1 pins 12 & 13	Cache slot	SL2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	PS/2 mouse port disabled	JP5	pins 1 & 2 closed
	PS/2 mouse port enabled	JP5	pins 2 & 3 closed
»	Flash BIOS boot block protected	JP16	pins 1 & 2 closed
	Flash BIOS boot block programming enabled	JP16	pins 2 & 3 closed
»	On board I/O enabled	JP1C	pins 1 & 2 closed
	On board I/O disabled	JP1C	pins 2 & 3 closed

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
6MB	(2) 512K x 36	(2) 256K 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
10MB	(2) 1M x 36	(2) 256K x 36
12MB	(2) 512K x 36	(2) 1M x 36
12MB	(2) 1M x 36	(2) 512K 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
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) 2M x 36	(2) 2M x 36
32MB	(2) 4M x 36	NONE
34MB	(2) 256K x 36	(2) 4M x 36
34MB	(2) 4M x 36	(2) 256K x 36
36MB	(2) 512K x 36	(2) 4M x 36
36MB	(2) 4M x 36	(2) 512K x 36
40MB	(2) 1M x 36	(2) 4M x 36
40MB	(2) 4M x 36	(2) 1M x 36
48MB	(2) 2M x 36	(2) 4M x 36
48MB	(2) 4M x 36	(2) 2M 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
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

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
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
128MB	(2) 16M x 36	NONE
130MB	(2) 256K x 36	(2) 16M x 36
130MB	(2) 16M x 36	(2) 256K x 36
132MB	(2) 512K x 36	(2) 16M x 36
132MB	(2) 16M x 36	(2) 512K x 36
136MB	(2) 1M x 36	(2) 16M x 36
136MB	(2) 16M x 36	(2) 1M x 36
144MB	(2) 2M x 36	(2) 16M x 36
144MB	(2) 16M x 36	(2) 2M x 36
160MB	(2) 4M x 36	(2) 16M x 36
160MB	(2) 16M x 36	(2) 4M x 36
192MB	(2) 8M x 36	(2) 16M x 36
192MB	(2) 16M x 36	(2) 8M x 36
256MB	(2) 16M x 36	(2) 16M x 36
256MB	(2) 32M x 36	NONE
258MB	(2) 256K x 36	(2) 32M x 36
258MB	(2) 32M x 36	(2) 256K x 36
260MB	(2) 512K x 36	(2) 32M x 36
260MB	(2) 32M x 36	(2) 512K x 36
264MB	(2) 1M x 36	(2) 32M x 36
264MB	(2) 32M x 36	(2) 1M x 36
272MB	(2) 2M x 36	(2) 32M x 36
272MB	(2) 32M x 36	(2) 2M x 36
288MB	(2) 4M x 36	(2) 32M x 36
288MB	(2) 32M x 36	(2) 4M x 36
320MB	(2) 8M x 36	(2) 32M x 36
320MB	(2) 32M x 36	(2) 8M x 36
384MB	(2) 16M x 36	(2) 32M x 36
384MB	(2) 32M x 36	(2) 16M x 36
512MB	(2) 32M x 36	(2) 32M x 36

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG	SL2
256KB	(4) 32K x 8	(4) 32K x 8	(1) 8K or (1) 32K x 8	Card not installed
256KB	NONE	NONE	NONE	Card installed
512KB	(4) 64K x 8	(4) 64K x 8	(1) 8K or (1) 32K x 8	Card not installed
512KB	NONE	NONE	NONE	Card installed
1MB	(4) 128K x 8	(4) 128K x 8	(1) 8K or (1) 32K x 8	Card not installed
1MB	NONE	NONE	NONE	Card installed

CACHE JUMPER CONFIGURATION
Size	JP10	JP11
256KB	pins 1 & 2 closed	pins 1 & 2 closed
512KB	pins 2 & 3 closed	pins 1 & 2 closed
1MB	pins 2 & 3 closed	pins 2 & 3 closed

CACHE TYPE CONFIGURATION
Type	JP6	JP7	JP8	JP9
3.3v cache	Open	Open	Closed	Closed
Mixed mode cache	Closed	Closed	Open	Open

CPU SPEED CONFIGURATION
Speed	JP12	JP13	JP14
75MHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
90MHz	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
100MHz	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
120MHz	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
133MHz	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
150MHz	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
166MHz	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed

CPU CLOCK SPEED CONFIGURATION
Speed	JP20	JP21
1.5x	Open	Open
2x	Open	Closed
2.5x	Closed	Closed
3x	Closed	Open

VOLTAGE REGULATOR CONFIGURATION
Type	JP22	JP23	JP28	JP29
STD/VR	Closed	Open	Closed	Open
VRE	Open	Closed	Open	Closed

VOLTAGE REGULATOR TYPE CONFIGURATION
Setting	JP32	JP33	JP34	JP35
Not installed	Closed	Closed	Closed	Closed
Installed	Open	Open	Open	Open
Note: The location of the above jumpers are unidentified.

UART/IR CONFIGURATION
Speed	JP1A	JP1B
UART2	pins 1 & 2 closed	pins 1 & 2 closed
IR	pins 2 & 3 closed	pins 2 & 3 closed