PREMIUM HARD TO FIND PC ITEMS:
VINTAGE AMERICA MEGATRENDS APOLLO IV PENTIUM MMX K5 K6 AT MOTHERBOARD MXMB54. MANUAL AND CD DRIVER NOT INCLUDED. CPU NOT INCLUDED. MOTHERBOARD ONLY.
Only 1 at this price!THE ONLY LISTING ON !
PLEASE GOOGLE "American MegatrendMAN-772Apollo IV Motherboard Layout" FOR PDF MANUAL
** USA Seller **
FLAT USPS GROUND ADVANTAGE (Formerly First Class) SHIPPING
US-MXMB54-0000
SPECS:
AMERICAN MEGATRENDS, INC.
APOLLO IV
Device Type
Mainboard
Processor
AM K5/AM K6/Pentium
Processor Speed
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
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
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