MEGAPRO Motherboard Settings and Configuration

AMERICAN MEGATRENDS, INC.

MEGAPRO

Processor
Pentium Pro
Processor Speed
133/150/166/180/200MHz
Chip Set
Unidentified
Video Chip Set
None
Maximum Onboard Memory
512MB (EDO supported)
Maximum Video Memory
None
Cache
256/512KB (located on Pentium Pro CPU)
BIOS
AMI
Dimensions
355mm x 304mm
I/O Options
32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), VGA interface, IR connector, VRM connectors (2), USB connectors (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
CPU fan
J2
PS/2 mouse interface
P8
CPU fan
J3
Floppy drive interface
P10
Chassis door connector
J12
IDE interface 1
P11
IDE interface LED
J13
Parallel port
P12
Speaker
J16
IDE interface 2
P13
Chassis fan power
J18
USB connector 1
P14
Green PC connector
J21
USB connector 2
P15
Power LED & keylock
J23
VGA connector
P20
Turbo LED
J26
32-bit PCI slots
PC1 - PC4
Reset switch
J28
VRM connector 1
VRM1
Serial port 1
P4
VRM connector 2
VRM2
Serial port 2
P5

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
Factory configured - do not alter
J11
Open
»
Factory configured - do not alter
J14
Pins 1 & 2 closed

PS/2 mouse IRQ12 enabled
J15
Pins 2 & 3 closed

PS/2 mouse IRQ12 disabled
J15
Pins 1 & 2 closed
»
On board PCI VGA enabled
J19
Open

On board PCI VGA disabled
J19
Closed
»
PCI IRQ disabled
J20
Closed

PCI IRQ enabled
J20
Open
»
Server management SMI disabled
J22
Open

Server management SMI enabled
J22
Closed
»
External SMI disabled
J25
Open

External SMI enabled
J25
Closed
»
Factory configured - do not alter
J27
Open
»
CMOS memory normal operation
J29
Open

CMOS memory clear
J29
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
8MB
(2) 1M x 36
None
None
None
16MB
(2) 1M x 36
(2) 1M x 36
None
None
16MB
(2) 2M x 36
None
None
None
24MB
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
None
24MB
(2) 1M x 36
(2) 2M x 36
None
None
24MB
(2) 2M x 36
(2) 1M x 36
None
None
32MB
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
32MB
(2) 2M x 36
(2) 1M x 36
(2) 1M x 36
None
32MB
(2) 2M x 36
(2) 2M x 36
None
None

DRAM CONFIGURATION (CON'T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
32MB
(2) 4M x 36
None
None
None
40MB
(2) 1M x 36
(2) 2M x 36
(2) 2M x 36
None
40MB
(2) 1M x 36
(2) 4M x 36
None
None
40MB
(2) 2M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
40MB
(2) 4M x 36
(2) 1M x 36
None
None
48MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
None
48MB
(2) 2M x 36
(2) 4M x 36
None
None
48MB
(2) 4M x 36
(2) 1M x 36
(2) 1M x 36
None
56MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
(2) 1M x 36
56MB
(2) 4M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
64MB
(2) 4M x 36
(2) 2M x 36
(2) 2M x 36
None
64MB
(2) 4M x 36
(2) 4M x 36
None
None
64MB
(2) 8M x 36
None
None
None
72MB
(2) 4M x 36
(2) 4M x 36
(2) 1M x 36
None
72MB
(2) 8M x 36
(2) 1M x 36
None
None
80MB
(2) 2M x 36
(2) 8M x 36
None
None
80MB
(2) 4M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
80MB
(2) 8M x 36
(2) 1M x 36
(2) 1M x 36
None
88MB
(2) 8M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
96MB
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
None
96MB
(2) 4M x 36
(2) 8M x 36
None
None
96MB
(2) 8M x 36
(2) 2M x 36
(2) 2M x 36
None
112MB
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
(2) 2M x 36
112MB
(2) 8M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
128MB
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
128MB
(2) 8M x 36
(2) 4M x 36
(2) 4M x 36
None
128MB
(2) 8M x 36
(2) 8M x 36
None
None
128MB
(2) 16M x 36
None
None
None
136MB
(2) 16M x 36
(2) 1M x 36
None
None
144MB
(2) 16M x 36
(2) 2M x 36
None
None
144MB
(2) 16M x 36
(2) 1M x 36
(2) 1M x 36
None
152MB
(2) 16M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
160MB
(2) 16M x 36
(2) 4M x 36
None
None
160MB
(2) 8M x 36
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
160MB
(2) 16M x 36
(2) 2M x 36
(2) 2M x 36
None
176MB
(2) 16M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
192MB
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
None
192MB
(2) 16M x 36
(2) 4M x 36
(2) 4M x 36
None
192MB
(2) 16M x 36
(2) 8M x 36
None
None
200MB
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
(2) 1M x 36

DRAM CONFIGURATION (CON'T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
208MB
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
(2) 2M x 36
224MB
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
(2) 4M x 36
224MB
(2) 16M x 36
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
256MB
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
256MB
(2) 16M x 36
(2) 8M x 36
(2) 8M x 36
None
256MB
(2) 16M x 36
(2) 16M x 36
None
None
264MB
(2) 16M x 36
(2) 16M x 36
(2) 1M x 36
None
288MB
(2) 16M x 36
(2) 16M x 36
(2) 4M x 36
None
320MB
(2) 16M x 36
(2) 16M x 36
(2) 8M x 36
None
320MB
(2) 16M x 36
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
384MB
(2) 16M x 36
(2) 16M x 36
(2) 16M x 36
None
400MB
(2) 16M x 36
(2) 16M x 36
(2) 16M x 36
(2) 2M x 36
416MB
(2) 16M x 36
(2) 16M x 36
(2) 16M x 36
(2) 4M x 36
512MB
(2) 16M x 36
(2) 16M x 36
(2) 16M x 36
(2) 16M x 36
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Note: 256KB/512KB cache is located on the Pentium Pro CPU.

CPU SPEED SELECTION
CPU speed
Clock speed
Multiplier
J7
J8
J9
133MHz
66MHz
2x
Open
Closed
Open
150MHz
60MHz
2.5x
Closed
Open
Closed
166MHz
66MHz
2.5x
Open
Closed
Open
180MHz
60MHz
3x
Closed
Open
Closed
200MHz
66MHz
3x
Open
Closed
Open

CPU SPEED SELECTION
CPU speed
Clock speed
Multiplier
J10
J17
J24
133MHz
66MHz
2x
Closed
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2
150MHz
60MHz
2.5x
Open
3 & 4, 5 & 6, 7 & 8
1 & 2
166MHz
66MHz
2.5x
Closed
3 & 4, 5 & 6, 7 & 8
1 & 2
180MHz
60MHz
3x
Open
1 & 2, 5 & 6, 7 & 8
1 & 2
200MHz
66MHz
3x
Closed
1 & 2, 5 & 6, 7 & 8
1 & 2
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
J4
J5

None
Open
Open

2.1v
7 & 8
7 & 8

2.2v
5 & 6
5 & 6

2.3v
5 & 6, 7 & 8
5 & 6, 7 & 8

2.4v
3 & 4
3 & 4

2.5v
3 & 4, 7 & 8
3 & 4, 7 & 8

2.6v
3 & 4, 5 & 6
3 & 4, 5 & 6

2.7v
3 & 4, 5 & 6, 7 & 8
3 & 4, 5 & 6, 7 & 8

2.8v
1 & 2
1 & 2

2.9v
1 & 2, 7 & 8
1 & 2, 7 & 8

3.0v
1 & 2, 5 & 6
1 & 2, 5 & 6

3.1v
1 & 2, 5 & 6, 7 & 8
1 & 2, 5 & 6, 7 & 8

3.2v
1 & 2, 3 & 4
1 & 2, 3 & 4
»
3.3v
1 & 2, 3 & 4, 7 & 8
1 & 2, 3 & 4, 7 & 8

3.4v
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6

3.5v
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
Note: Pins designated should be in the closed position.

3.3V POWER SELECTION
Setting
J1
J6
From voltage regulator
Open
1 & 2, 3 & 4, 5 & 6
From power supply
1 & 2, 3 & 4, 5 & 6
Open
Note: Pins designated should be in the closed position.

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Processor	Pentium Pro
Processor Speed	133/150/166/180/200MHz
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	512MB (EDO supported)
Maximum Video Memory	None
Cache	256/512KB (located on Pentium Pro CPU)
BIOS	AMI
Dimensions	355mm x 304mm
I/O Options	32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), VGA interface, IR connector, VRM connectors (2), USB connectors (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
CPU fan	J2	PS/2 mouse interface	P8
CPU fan	J3	Floppy drive interface	P10
Chassis door connector	J12	IDE interface 1	P11
IDE interface LED	J13	Parallel port	P12
Speaker	J16	IDE interface 2	P13
Chassis fan power	J18	USB connector 1	P14
Green PC connector	J21	USB connector 2	P15
Power LED & keylock	J23	VGA connector	P20
Turbo LED	J26	32-bit PCI slots	PC1 - PC4
Reset switch	J28	VRM connector 1	VRM1
Serial port 1	P4	VRM connector 2	VRM2
Serial port 2	P5

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	J11	Open
»	Factory configured - do not alter	J14	Pins 1 & 2 closed
	PS/2 mouse IRQ12 enabled	J15	Pins 2 & 3 closed
	PS/2 mouse IRQ12 disabled	J15	Pins 1 & 2 closed
»	On board PCI VGA enabled	J19	Open
	On board PCI VGA disabled	J19	Closed
»	PCI IRQ disabled	J20	Closed
	PCI IRQ enabled	J20	Open
»	Server management SMI disabled	J22	Open
	Server management SMI enabled	J22	Closed
»	External SMI disabled	J25	Open
	External SMI enabled	J25	Closed
»	Factory configured - do not alter	J27	Open
»	CMOS memory normal operation	J29	Open
	CMOS memory clear	J29	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
8MB	(2) 1M x 36	None	None	None
16MB	(2) 1M x 36	(2) 1M x 36	None	None
16MB	(2) 2M x 36	None	None	None
24MB	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36	None
24MB	(2) 1M x 36	(2) 2M x 36	None	None
24MB	(2) 2M x 36	(2) 1M x 36	None	None
32MB	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
32MB	(2) 2M x 36	(2) 1M x 36	(2) 1M x 36	None
32MB	(2) 2M x 36	(2) 2M x 36	None	None

DRAM CONFIGURATION (CON'T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
32MB	(2) 4M x 36	None	None	None
40MB	(2) 1M x 36	(2) 2M x 36	(2) 2M x 36	None
40MB	(2) 1M x 36	(2) 4M x 36	None	None
40MB	(2) 2M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
40MB	(2) 4M x 36	(2) 1M x 36	None	None
48MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	None
48MB	(2) 2M x 36	(2) 4M x 36	None	None
48MB	(2) 4M x 36	(2) 1M x 36	(2) 1M x 36	None
56MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	(2) 1M x 36
56MB	(2) 4M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
64MB	(2) 4M x 36	(2) 2M x 36	(2) 2M x 36	None
64MB	(2) 4M x 36	(2) 4M x 36	None	None
64MB	(2) 8M x 36	None	None	None
72MB	(2) 4M x 36	(2) 4M x 36	(2) 1M x 36	None
72MB	(2) 8M x 36	(2) 1M x 36	None	None
80MB	(2) 2M x 36	(2) 8M x 36	None	None
80MB	(2) 4M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36
80MB	(2) 8M x 36	(2) 1M x 36	(2) 1M x 36	None
88MB	(2) 8M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
96MB	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36	None
96MB	(2) 4M x 36	(2) 8M x 36	None	None
96MB	(2) 8M x 36	(2) 2M x 36	(2) 2M x 36	None
112MB	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36	(2) 2M x 36
112MB	(2) 8M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36
128MB	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36
128MB	(2) 8M x 36	(2) 4M x 36	(2) 4M x 36	None
128MB	(2) 8M x 36	(2) 8M x 36	None	None
128MB	(2) 16M x 36	None	None	None
136MB	(2) 16M x 36	(2) 1M x 36	None	None
144MB	(2) 16M x 36	(2) 2M x 36	None	None
144MB	(2) 16M x 36	(2) 1M x 36	(2) 1M x 36	None
152MB	(2) 16M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
160MB	(2) 16M x 36	(2) 4M x 36	None	None
160MB	(2) 8M x 36	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36
160MB	(2) 16M x 36	(2) 2M x 36	(2) 2M x 36	None
176MB	(2) 16M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36
192MB	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36	None
192MB	(2) 16M x 36	(2) 4M x 36	(2) 4M x 36	None
192MB	(2) 16M x 36	(2) 8M x 36	None	None
200MB	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36	(2) 1M x 36

CPU SPEED SELECTION
CPU speed	Clock speed	Multiplier	J7	J8	J9
133MHz	66MHz	2x	Open	Closed	Open
150MHz	60MHz	2.5x	Closed	Open	Closed
166MHz	66MHz	2.5x	Open	Closed	Open
180MHz	60MHz	3x	Closed	Open	Closed
200MHz	66MHz	3x	Open	Closed	Open

CPU VOLTAGE SELECTION
Voltage		J4	J5
	None	Open	Open
	2.1v	7 & 8	7 & 8
	2.2v	5 & 6	5 & 6
	2.3v	5 & 6, 7 & 8	5 & 6, 7 & 8
	2.4v	3 & 4	3 & 4
	2.5v	3 & 4, 7 & 8	3 & 4, 7 & 8
	2.6v	3 & 4, 5 & 6	3 & 4, 5 & 6
	2.7v	3 & 4, 5 & 6, 7 & 8	3 & 4, 5 & 6, 7 & 8
	2.8v	1 & 2	1 & 2
	2.9v	1 & 2, 7 & 8	1 & 2, 7 & 8
	3.0v	1 & 2, 5 & 6	1 & 2, 5 & 6
	3.1v	1 & 2, 5 & 6, 7 & 8	1 & 2, 5 & 6, 7 & 8
	3.2v	1 & 2, 3 & 4	1 & 2, 3 & 4
»	3.3v	1 & 2, 3 & 4, 7 & 8	1 & 2, 3 & 4, 7 & 8
	3.4v	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6
	3.5v	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
Note: Pins designated should be in the closed position.

3.3V POWER SELECTION
Setting	J1	J6
From voltage regulator	Open	1 & 2, 3 & 4, 5 & 6
From power supply	1 & 2, 3 & 4, 5 & 6	Open
Note: Pins designated should be in the closed position.