APOLLO IV Motherboard Settings and Configuration

AMERICAN MEGATRENDS, INC.

APOLLO IV

Device Type
Mainboard
Processor
AM K5/AM K6/Pentium
Processor Speed
90/100/120/133/150/166/200/233MHz
Chip Set
Intel
Video Chip Set
None
Maximum Onboard Memory
256MB (EDO supported)
Maximum Video Memory
None
Cache
512KB
BIOS
AMI
Dimensions
254mm x 218mm
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), IR connector, USB connectors (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Power LED & keylock
C1
Serial port 1
CN4
Turbo LED
C2
IDE interface 2
CN5
Green PC connector
C3
IDE interface 1
CN6
Green PC LED
C4
CPU fan power
CPU
Speaker
C5
Chassis fan power
FAN
IDE interface LED
C6
IR connector
IR1
Remote power switch
C7
32-bit PCI slots
PC1 – PC4
Reset switch
C8
PS/2 mouse interface
PS2
Parallel port
CN1
Soft off power supply
RPW
Floppy drive interface
CN2
USB connector 1
USB1
Serial port 2
CN3
USB connector 2
USB2

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
CPW
Open

CMOS memory clear
CPW
Closed
»
Power supply type select AT
PWR1
Pins 1 & 2 closed

Power supply type select remote power
PWR1
Pins 2 & 3 closed

SIMM 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
128MB
(2) 16M x 36
None
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.

DIMM CONFIGURATION
Size
Bank 2
Bank 3
8MB
(1) 1M x 64
None
16MB
(1) 2M x 64
None
16MB
(1) 1M x 64
(1) 1M x 64
24MB
(1) 2M x 64
(1) 1M x 64
32MB
(1) 4M x 64
None
32MB
(1) 2M x 64
(1) 2M x 64
40MB
(1) 4M x 64
(1) 1M x 64
48MB
(1) 4M x 64
(1) 2M x 64
64MB
(1) 8M x 64
None
64MB
(1) 4M x 64
(1) 4M x 64
72MB
(1) 8M x 64
(1) 1M x 64
80MB
(1) 8M x 64
(1) 2M x 64
96MB
(1) 8M x 64
(1) 4M x 64
128MB
(1) 16M x 64
None
128MB
(1) 8M x 64
(1) 8M x 64
136MB
(1) 16M x 64
(1) 1M x 64
144MB
(1) 16M x 64
(1) 2M x 64
160MB
(1) 16M x 64
(1) 4M x 64
192MB
(1) 16M x 64
(1) 8M x 64
256MB
(1) 16M x 64
(1) 16M x 64

CACHE CONFIGURATION
Size
Bank 0
512KB
(2) 64K x 32
Note: The size of the TAG is unidentified.

CPU SPEED SELECTION (AM K5, IMI 652)
CPU speed
Clock speed
Multiplier
CLK1
CLK2
CLK3
FREQ1
FREQ2
FREQ3
90MHz
60MHz
1.5x
2 & 3
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
100MHz
66MHz
1.5x
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
120MHz
60MHz
1.5x
2 & 3
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
133MHz
66MHz
1.5x
2 & 3
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
150MHz
60MHz
1.75x
2 & 3
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
166MHz
66MHz
1.75x
1 & 2
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
200MHz
66MHz
2x
1 & 2
1 & 2
2 & 3
1 & 2
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5, OCS 9147)
CPU speed
Clock speed
Multiplier
CLK1
CLK2
CLK3
FREQ1
FREQ2
FREQ3
90MHz
60MHz
1.5x
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
100MHz
66MHz
1.5x
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
120MHz
60MHz
1.5x
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
133MHz
66MHz
1.5x
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
150MHz
60MHz
1.75x
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
166MHz
66MHz
1.75x
1 & 2
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
200MHz
66MHz
2x
1 & 2
2 & 3
2 & 3
1 & 2
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6, IMI 652)
CPU speed
Clock speed
Multiplier
CLK1
CLK2
CLK3
FREQ1
FREQ2
FREQ3
166MHz
66MHz
2.5x
1 & 2
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
200MHz
66MHz
3x
1 & 2
1 & 2
2 & 3
1 & 2
2 & 3
1 & 2
233MHz
66MHz
3.5x
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6, OCS 9147)
CPU speed
Clock speed
Multiplier
CLK1
CLK2
CLK3
FREQ1
FREQ2
FREQ3
166MHz
66MHz
2.5x
1 & 2
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
200MHz
66MHz
3x
1 & 2
2 & 3
2 & 3
1 & 2
2 & 3
1 & 2
233MHz
66MHz
3.5x
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL, IMI 652)
CPU speed
Clock speed
Multiplier
CLK1
CLK2
CLK3
FREQ1
FREQ2
FREQ3
90MHz
60MHz
1.5x
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
100MHz
66MHz
1.5x
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
120MHz
60MHz
2x
2 & 3
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
133MHz
66MHz
2x
1 & 2
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
150MHz
60MHz
2.5x
2 & 3
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
166MHz
66MHz
2.5x
1 & 2
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
200MHz
66MHz
3x
1 & 2
1 & 2
2 & 3
1 & 2
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL, OCS 9147)
CPU speed
Clock speed
Multiplier
CLK1
CLK2
CLK3
FREQ1
FREQ2
FREQ3
90MHz
60MHz
1.5x
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
100MHz
66MHz
1.5x
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
120MHz
60MHz
2x
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
133MHz
66MHz
2x
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
150MHz
60MHz
2.5x
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
166MHz
66MHz
2.5x
1 & 2
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
200MHz
66MHz
3x
1 & 2
2 & 3
2 & 3
1 & 2
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX, IMI 652)
CPU speed
Clock speed
Multiplier
CLK1
CLK2
CLK3
FREQ1
FREQ2
FREQ3
166MHz
66MHz
2.5x
1 & 2
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
200MHz
66MHz
3x
1 & 2
1 & 2
2 & 3
1 & 2
2 & 3
1 & 2
233MHz
66MHz
3.5x
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX, OCS 9147)
CPU speed
Clock speed
Multiplier
CLK1
CLK2
CLK3
FREQ1
FREQ2
FREQ3
166MHz
66MHz
2.5x
1 & 2
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
200MHz
66MHz
3x
1 & 2
2 & 3
2 & 3
1 & 2
2 & 3
1 & 2
233MHz
66MHz
3.5x
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)
Voltage
VR1
3.3v
Pins 3 & 4 closed
3.5v
Pins 1 & 2 closed

CPU VOLTAGE SELECTION (DUAL)
Voltage
V core
VR1
3.3v
2.8v
Pins 9 & 10 closed
3.3v
2.9v
Pins 7 & 8 closed
3.3v
3.2v
Pins 5 & 6 closed

FLASH BIOS SELECTION
Type
EP1
EP2
AMD 28F020
Pins 1 & 2 closed
Pins 2 & 3 closed
ATMEL AT29C020
Open
Pins 2 & 3 closed
Intel 28F001
Pins 2 & 3 closed
Pins 1 & 2 closed
MXIC MX28F200
Pins 2 & 3 closed
Pins 2 & 3 closed
SST 29EE010
Open
Pins 2 & 3 closed
SST 29EE020
Open
Pins 2 & 3 closed

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APOLLO IV Motherboard Settings and Configuration

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Device Type	Mainboard
Processor	AM K5/AM K6/Pentium
Processor Speed	90/100/120/133/150/166/200/233MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	256MB (EDO supported)
Maximum Video Memory	None
Cache	512KB
BIOS	AMI
Dimensions	254mm x 218mm
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), IR connector, USB connectors (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	C1	Serial port 1	CN4
Turbo LED	C2	IDE interface 2	CN5
Green PC connector	C3	IDE interface 1	CN6
Green PC LED	C4	CPU fan power	CPU
Speaker	C5	Chassis fan power	FAN
IDE interface LED	C6	IR connector	IR1
Remote power switch	C7	32-bit PCI slots	PC1 – PC4
Reset switch	C8	PS/2 mouse interface	PS2
Parallel port	CN1	Soft off power supply	RPW
Floppy drive interface	CN2	USB connector 1	USB1
Serial port 2	CN3	USB connector 2	USB2

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	CPW	Open
	CMOS memory clear	CPW	Closed
»	Power supply type select AT	PWR1	Pins 1 & 2 closed
	Power supply type select remote power	PWR1	Pins 2 & 3 closed

SIMM 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
128MB	(2) 16M x 36	None
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.

DIMM CONFIGURATION
Size	Bank 2	Bank 3
8MB	(1) 1M x 64	None
16MB	(1) 2M x 64	None
16MB	(1) 1M x 64	(1) 1M x 64
24MB	(1) 2M x 64	(1) 1M x 64
32MB	(1) 4M x 64	None
32MB	(1) 2M x 64	(1) 2M x 64
40MB	(1) 4M x 64	(1) 1M x 64
48MB	(1) 4M x 64	(1) 2M x 64
64MB	(1) 8M x 64	None
64MB	(1) 4M x 64	(1) 4M x 64
72MB	(1) 8M x 64	(1) 1M x 64
80MB	(1) 8M x 64	(1) 2M x 64
96MB	(1) 8M x 64	(1) 4M x 64
128MB	(1) 16M x 64	None
128MB	(1) 8M x 64	(1) 8M x 64
136MB	(1) 16M x 64	(1) 1M x 64
144MB	(1) 16M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 4M x 64
192MB	(1) 16M x 64	(1) 8M x 64
256MB	(1) 16M x 64	(1) 16M x 64

CACHE CONFIGURATION
Size	Bank 0
512KB	(2) 64K x 32
Note: The size of the TAG is unidentified.

CPU SPEED SELECTION (AM K5, IMI 652)
CPU speed	Clock speed	Multiplier	CLK1	CLK2	CLK3	FREQ1	FREQ2	FREQ3
90MHz	60MHz	1.5x	2 & 3	1 & 2	2 & 3	1 & 2	1 & 2	1 & 2
100MHz	66MHz	1.5x	1 & 2	1 & 2	2 & 3	1 & 2	1 & 2	1 & 2
120MHz	60MHz	1.5x	2 & 3	1 & 2	2 & 3	1 & 2	1 & 2	1 & 2
133MHz	66MHz	1.5x	2 & 3	1 & 2	2 & 3	1 & 2	1 & 2	1 & 2
150MHz	60MHz	1.75x	2 & 3	1 & 2	2 & 3	2 & 3	2 & 3	1 & 2
166MHz	66MHz	1.75x	1 & 2	1 & 2	2 & 3	2 & 3	2 & 3	1 & 2
200MHz	66MHz	2x	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3	1 & 2
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)
Voltage	VR1
3.3v	Pins 3 & 4 closed
3.5v	Pins 1 & 2 closed

CPU VOLTAGE SELECTION (DUAL)
Voltage	V core	VR1
3.3v	2.8v	Pins 9 & 10 closed
3.3v	2.9v	Pins 7 & 8 closed
3.3v	3.2v	Pins 5 & 6 closed

FLASH BIOS SELECTION
Type	EP1	EP2
AMD 28F020	Pins 1 & 2 closed	Pins 2 & 3 closed
ATMEL AT29C020	Open	Pins 2 & 3 closed
Intel 28F001	Pins 2 & 3 closed	Pins 1 & 2 closed
MXIC MX28F200	Pins 2 & 3 closed	Pins 2 & 3 closed
SST 29EE010	Open	Pins 2 & 3 closed
SST 29EE020	Open	Pins 2 & 3 closed