PN5 (REV. 1.4) Motherboard Settings and Configuration

ABIT COMPUTER CORPORATION

PN5 (REV. 1.4)

Processor
CX M1/AM K5/Pentium
Processor Speed
75/90/100/120/133/150/166/200MHz
Chip Set
Intel
Video Chip Set
None
Maximum Onboard Memory
256MB (EDO supported)
Maximum Video Memory
None
Cache
256/512KB
BIOS
Award
Dimensions
330mm x 218mm
I/O Options
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), cache slot, IR connector, USB connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Serial port 2
CN1
Green PC connector
J7 pins 6 & 7
Serial port 1
CN2
Turbo LED
J7 pins 8 & 9
Parallel port
CN3
Speaker
J7 pins 11 - 14
Floppy drive interface
CN4
Power LED & keylock
J7 pins 16 - 20
IDE interface 2
CN5
IR connector
JP2
IDE interface 1
CN6
Chassis fan power
JP21
PS/2 mouse port
J3
USB connector
JP28
IDE interface LED
J6
32-bit PCI slots
PC1 - PC3
Reset switch
J7 pins 1 & 2
Cache slot
SL1

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
On board I/O enabled
JP4
Open

On board I/O disabled
JP4
Closed
»
CMOS memory normal operation
JP26
Open

CMOS memory clear
JP26
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
8MB
(2) 1M x 32
None
16MB
(2) 2M x 32
None
16MB
(2) 1M x 32
(2) 1M x 32
24MB
(2) 2M x 32
(2) 1M x 32
32MB
(2) 4M x 32
None
32MB
(2) 2M x 32
(2) 2M x 32
40MB
(2) 4M x 32
(2) 1M x 32
48MB
(2) 4M x 32
(2) 2M x 32
64MB
(2) 8M x 32
None
64MB
(2) 4M x 32
(2) 4M x 32
72MB
(2) 8M x 32
(2) 1M x 32
80MB
(2) 8M x 32
(2) 2M x 32
96MB
(2) 8M x 32
(2) 4M x 32
128MB
(2) 8M x 32
(2) 8M x 32
128MB
(2) 16M x 32
None
136MB
(2) 16M x 32
(2) 1M x 32
144MB
(2) 16M x 32
(2) 2M x 32
160MB
(2) 16M x 32
(2) 4M x 32
192MB
(2) 16M x 32
(2) 8M x 32
256MB
(2) 16M x 32
(2) 16M x 32
Note: Board accepts EDO memory. Banks are interchangeable.

DRAM REFRESH RATE CONFIGURATION
Setting
DS/6

60MHz
On
»
66MHz
Off

CACHE CONFIGURATION
Size
Bank 0
SL1
TAG
256KB
(2) 32K x 32
Not installed
(1) 32K x 8
512KB
(2) 32K x 32
256KB module installed
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP5
JP6
JP20
256KB
Open
Open
Open
512KB
Closed
Closed
Closed

CPU SPEED SELECTION (CYRIX)
CPU speed
Clock speed
Multiplier
DS/1
DS/2
DS/3
DS/4
120MHz
50MHz
2x
Off
On
On
On
133MHz
55MHz
2x
Off
On
Off
Off
150MHz
60MHz
2x
Off
On
Off
On
166MHz
66MHz
2x
Off
On
On
Off
200MHz
75MHz
2x
Off
On
Off
Off

CPU SPEED SELECTION (CYRIX)
CPU speed
Clock speed
Multiplier
DS/5
DS/7 (normal)
DS/7 (turbo)
120MHz
50MHz
2x
Off
Off
On
133MHz
55MHz
2x
On
Off
N/A
150MHz
60MHz
2x
On
Off
On
166MHz
66MHz
2x
On
Off
On
200MHz
75MHz
2x
On
On
N/A

CPU SPEED SELECTION (AMD)
CPU speed
Clock speed
Multiplier
DS/1
DS/2
DS/3
DS/4
75MHz
50MHz
1.5x
Off
Off
On
On
90MHz
60MHz
1.5x
Off
Off
Off
On
100MHz
66MHz
1.5x
Off
Off
On
Off
120MHz
60MHz
1.5x
Off
Off
Off
On
133MHz
66MHz
1.5x
Off
Off
On
Off
150MHz
60MHz
2x
Off
On
Off
On
166MHz
66MHz
2x
Off
On
On
Off

CPU SPEED SELECTION (AMD, CON’T)
CPU speed
Clock speed
Multiplier
DS/5
DS/7 (normal)
DS/7 (turbo)
75MHz
50MHz
1.5x
Off
Off
On
90MHz
60MHz
1.5x
On
Off
On
100MHz
66MHz
1.5x
On
Off
On
120MHz
60MHz
1.5x
On
Off
On
133MHz
66MHz
1.5x
On
Off
On
150MHz
60MHz
2x
On
Off
On
166MHz
66MHz
2x
On
Off
On

CPU SPEED SELECTION (INTEL)
CPU speed
Clock speed
Multiplier
DS/1
DS/2
DS/3
DS/4
75MHz
50MHz
1.5x
Off
Off
On
On
90MHz
60MHz
1.5x
Off
Off
Off
On
100MHz
66MHz
1.5x
Off
Off
On
Off
120MHz
60MHz
2x
Off
On
Off
On
133MHz
66MHz
2x
Off
On
On
Off
150MHz
60MHz
2.5x
On
On
Off
On
166MHz
66MHz
2.5x
On
On
On
Off
200MHz
66MHz
3x
On
Off
On
Off

CPU SPEED SELECTION (INTEL, CON’T)
CPU speed
Clock speed
Multiplier
DS/5
DS/7 (normal)
DS/7 (turbo)
75MHz
50MHz
1.5x
Off
Off
On
90MHz
60MHz
1.5x
On
Off
On
100MHz
66MHz
1.5x
On
Off
On
120MHz
60MHz
2x
On
Off
On
133MHz
66MHz
2x
On
Off
On
150MHz
60MHz
2.5x
On
Off
On
166MHz
66MHz
2.5x
On
Off
On
200MHz
66MHz
3x
On
Off
On

CPU VOLTAGE SELECTION
Voltage
DSV/1
DSV/2
DSV/3
DSV/4
DSV/5
DSV/6
DSV/7
DSV/8

2.5v
Off
Off
Off
Off
Off
On
On
Off

2.7v
Off
Off
Off
Off
On
Off
On
Off

2.8v
Off
Off
Off
On
Off
Off
On
Off

2.9v
Off
Off
On
Off
Off
Off
On
Off
»
3.38v
Off
On
Off
Off
Off
Off
On
Off

3.52v
On
Off
Off
Off
Off
Off
Off
On

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PN5 (REV. 1.4) Motherboard Settings and Configuration

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Processor	CX M1/AM K5/Pentium
Processor Speed	75/90/100/120/133/150/166/200MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	256MB (EDO supported)
Maximum Video Memory	None
Cache	256/512KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), cache slot, IR connector, USB connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 2	CN1	Green PC connector	J7 pins 6 & 7
Serial port 1	CN2	Turbo LED	J7 pins 8 & 9
Parallel port	CN3	Speaker	J7 pins 11 - 14
Floppy drive interface	CN4	Power LED & keylock	J7 pins 16 - 20
IDE interface 2	CN5	IR connector	JP2
IDE interface 1	CN6	Chassis fan power	JP21
PS/2 mouse port	J3	USB connector	JP28
IDE interface LED	J6	32-bit PCI slots	PC1 - PC3
Reset switch	J7 pins 1 & 2	Cache slot	SL1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	On board I/O enabled	JP4	Open
	On board I/O disabled	JP4	Closed
»	CMOS memory normal operation	JP26	Open
	CMOS memory clear	JP26	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
8MB	(2) 1M x 32	None
16MB	(2) 2M x 32	None
16MB	(2) 1M x 32	(2) 1M x 32
24MB	(2) 2M x 32	(2) 1M x 32
32MB	(2) 4M x 32	None
32MB	(2) 2M x 32	(2) 2M x 32
40MB	(2) 4M x 32	(2) 1M x 32
48MB	(2) 4M x 32	(2) 2M x 32
64MB	(2) 8M x 32	None
64MB	(2) 4M x 32	(2) 4M x 32
72MB	(2) 8M x 32	(2) 1M x 32
80MB	(2) 8M x 32	(2) 2M x 32
96MB	(2) 8M x 32	(2) 4M x 32
128MB	(2) 8M x 32	(2) 8M x 32
128MB	(2) 16M x 32	None
136MB	(2) 16M x 32	(2) 1M x 32
144MB	(2) 16M x 32	(2) 2M x 32
160MB	(2) 16M x 32	(2) 4M x 32
192MB	(2) 16M x 32	(2) 8M x 32
256MB	(2) 16M x 32	(2) 16M x 32
Note: Board accepts EDO memory. Banks are interchangeable.

DRAM REFRESH RATE CONFIGURATION
Setting		DS/6
	60MHz	On
»	66MHz	Off

CACHE CONFIGURATION
Size	Bank 0	SL1	TAG
256KB	(2) 32K x 32	Not installed	(1) 32K x 8
512KB	(2) 32K x 32	256KB module installed	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP5	JP6	JP20
256KB	Open	Open	Open
512KB	Closed	Closed	Closed

CPU SPEED SELECTION (CYRIX)
CPU speed	Clock speed	Multiplier	DS/1	DS/2	DS/3	DS/4
120MHz	50MHz	2x	Off	On	On	On
133MHz	55MHz	2x	Off	On	Off	Off
150MHz	60MHz	2x	Off	On	Off	On
166MHz	66MHz	2x	Off	On	On	Off
200MHz	75MHz	2x	Off	On	Off	Off

CPU SPEED SELECTION (AMD)
CPU speed	Clock speed	Multiplier	DS/1	DS/2	DS/3	DS/4
75MHz	50MHz	1.5x	Off	Off	On	On
90MHz	60MHz	1.5x	Off	Off	Off	On
100MHz	66MHz	1.5x	Off	Off	On	Off
120MHz	60MHz	1.5x	Off	Off	Off	On
133MHz	66MHz	1.5x	Off	Off	On	Off
150MHz	60MHz	2x	Off	On	Off	On
166MHz	66MHz	2x	Off	On	On	Off

CPU SPEED SELECTION (AMD, CON’T)
CPU speed	Clock speed	Multiplier	DS/5	DS/7 (normal)	DS/7 (turbo)
75MHz	50MHz	1.5x	Off	Off	On
90MHz	60MHz	1.5x	On	Off	On
100MHz	66MHz	1.5x	On	Off	On
120MHz	60MHz	1.5x	On	Off	On
133MHz	66MHz	1.5x	On	Off	On
150MHz	60MHz	2x	On	Off	On
166MHz	66MHz	2x	On	Off	On

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	DS/1	DS/2	DS/3	DS/4
75MHz	50MHz	1.5x	Off	Off	On	On
90MHz	60MHz	1.5x	Off	Off	Off	On
100MHz	66MHz	1.5x	Off	Off	On	Off
120MHz	60MHz	2x	Off	On	Off	On
133MHz	66MHz	2x	Off	On	On	Off
150MHz	60MHz	2.5x	On	On	Off	On
166MHz	66MHz	2.5x	On	On	On	Off
200MHz	66MHz	3x	On	Off	On	Off

CPU SPEED SELECTION (INTEL, CON’T)
CPU speed	Clock speed	Multiplier	DS/5	DS/7 (normal)	DS/7 (turbo)
75MHz	50MHz	1.5x	Off	Off	On
90MHz	60MHz	1.5x	On	Off	On
100MHz	66MHz	1.5x	On	Off	On
120MHz	60MHz	2x	On	Off	On
133MHz	66MHz	2x	On	Off	On
150MHz	60MHz	2.5x	On	Off	On
166MHz	66MHz	2.5x	On	Off	On
200MHz	66MHz	3x	On	Off	On

CPU VOLTAGE SELECTION
Voltage		DSV/1	DSV/2	DSV/3	DSV/4	DSV/5	DSV/6	DSV/7	DSV/8
	2.5v	Off	Off	Off	Off	Off	On	On	Off
	2.7v	Off	Off	Off	Off	On	Off	On	Off
	2.8v	Off	Off	Off	On	Off	Off	On	Off
	2.9v	Off	Off	On	Off	Off	Off	On	Off
»	3.38v	Off	On	Off	Off	Off	Off	On	Off
	3.52v	On	Off	Off	Off	Off	Off	Off	On