ANTEC, INC.
MB557
|
Processor |
CX M1/IBM/AM K5/AM K6/Pentium |
|
Processor Speed |
75/90/100/120/125/133/150/166/200MHz |
|
Chip Set |
Intel |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB (EDO supported) |
|
Maximum Video Memory |
1MB |
|
Cache |
256/512KB |
|
BIOS |
Award |
|
Dimensions |
280mm x 220mm |
|
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), cache slot, IR connector, USB connectors (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Floppy drive interface |
CN1 |
PS/2 mouse interface |
J99 |
|
Serial port 1 |
CN2 |
Chassis fan power |
JP1 |
|
Serial port 2 |
CN3 |
IR connector |
JP3 |
|
Parallel port |
CN4 |
Reset switch |
JP12 |
|
IDE interface 1 |
J6 |
Green PC connector |
JP15 |
|
IDE interface 2 |
J7 |
IDE interface LED |
JP22 |
|
USB connector |
J10 |
Green PC LED |
JP33 |
|
USB connector |
J11 |
32-bit PCI slots |
PC1 – PC4 |
|
Speaker |
J12 |
Cache slot |
SL1 |
|
Power LED & keylock |
J14 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Monitor type select CGA40/CGA80 |
JP7 |
Closed | |
|
Monitor type select monochrome |
JP7 |
Open | |
|
Monitor type select color |
JP7 |
Any setting | |
|
» |
Password normal operation |
JP9 |
Open |
|
Password clear |
JP9 |
Closed | |
|
Flash BIOS voltage select 12v |
JP19 |
Pins 1 & 2 closed | |
|
Flash BIOS voltage select 5v |
JP19 |
Pins 2 & 3 closed | |
|
» |
CMOS memory normal operation |
JP21 |
Open |
|
CMOS memory clear |
JP21 |
Closed | |
|
» |
Factory configured - do not alter |
JP39 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
JP43 |
Closed |
|
» |
Factory configured - do not alter |
JP44 |
Open |
|
Note: If Cyrix 6x86 or AMD K5 processor is installed, JP9 is not available. | |||
|
DRAM 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 |
|
DRAM CONFIGURATION (CON’T) | ||
|
Size |
Bank 0 |
Bank 1 |
|
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 |
|
Note: Board accepts EDO memory. Banks are interchangeable. Do not install SIMMs & DIMMs at the same time. | ||
|
DIMM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
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) 4M x 64 |
(1) 4M x 64 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
SL1 |
|
256KB |
(2) 32K x 32 |
Not installed |
|
512KB |
(2) 32K x 32 |
256KB module installed |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JP29 |
JP30 |
|
256KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
512KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
CPU SPEED SELECTION (CYRIX) | |||||
|
CPU speed |
Clock speed |
Multiplier |
JP23 |
JP24 |
JP36 |
|
120MHz |
50MHz |
2x |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4, 5 & 6 |
|
133MHz |
55MHz |
2x |
1 & 2 |
2 & 3 |
1 & 2, 5 & 6 |
|
150MHz |
60MHz |
2x |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4 |
|
166MHz |
66MHz |
2x |
1 & 2 |
2 & 3 |
3 & 4, 5 & 6 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU SPEED SELECTION (IBM) | |||||
|
CPU speed |
Clock speed |
Multiplier |
JP23 |
JP24 |
JP36 |
|
120MHz |
50MHz |
2x |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4, 5 & 6 |
|
133MHz |
55MHz |
2x |
1 & 2 |
2 & 3 |
1 & 2, 5 & 6 |
|
150MHz |
60MHz |
2x |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4 |
|
166MHz |
66MHz |
2x |
1 & 2 |
2 & 3 |
3 & 4, 5 & 6 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU SPEED SELECTION (AMD) | |||||
|
CPU speed |
Clock speed |
Multiplier |
JP23 |
JP24 |
JP36 |
|
75MHz |
50MHz |
1.5x |
2 & 3 |
2 & 3 |
1 & 2, 3 & 4, 5 & 6 |
|
90MHz |
60MHz |
1.5x |
2 & 3 |
2 & 3 |
1 & 2, 3 & 4 |
|
100MHz |
66MHz |
1.5x |
2 & 3 |
2 & 3 |
3 & 4, 5 & 6 |
|
120MHz |
60MHz |
1.5x |
2 & 3 |
2 & 3 |
1 & 2, 3 & 4 |
|
133MHz |
66MHz |
1.5x |
2 & 3 |
2 & 3 |
3 & 4, 5 & 6 |
|
150MHz |
60MHz |
1.75x |
1 & 2 |
1 & 2 |
1 & 2, 3 & 4 |
|
166MHz |
66MHz |
1.75x |
1 & 2 |
1 & 2 |
3 & 4, 5 & 6 |
|
166MHz |
66MHz |
2.5x |
1 & 2 |
1 & 2 |
3 & 4, 5 & 6 |
|
200MHz |
66MHz |
3x |
2 & 3 |
1 & 2 |
3 & 4, 5 & 6 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU SPEED SELECTION (INTEL) | |||||
|
CPU speed |
Clock speed |
Multiplier |
JP23 |
JP24 |
JP36 |
|
75MHz |
50MHz |
1.5x |
2 & 3 |
2 & 3 |
1 & 2, 3 & 4, 5 & 6 |
|
90MHz |
60MHz |
1.5x |
2 & 3 |
2 & 3 |
1 & 2, 3 & 4 |
|
100MHz |
66MHz |
1.5x |
2 & 3 |
2 & 3 |
3 & 4, 5 & 6 |
|
120MHz |
60MHz |
2x |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4 |
|
125MHz |
50MHz |
2.5x |
1 & 2 |
1 & 2 |
1 & 2, 3 & 4, 5 & 6 |
|
133MHz |
66MHz |
2x |
1 & 2 |
2 & 3 |
3 & 4, 5 & 6 |
|
150MHz |
60MHz |
2.5x |
1 & 2 |
1 & 2 |
1 & 2, 3 & 4 |
|
166MHz |
66MHz |
2.5x |
1 & 2 |
1 & 2 |
3 & 4, 5 & 6 |
|
200MHz |
66MHz |
3x |
2 & 3 |
1 & 2 |
3 & 4, 5 & 6 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU VOLTAGE SELECTION (SINGLE) | ||||
|
Voltage |
J100 |
J105 |
J107 |
J108 |
|
2.82v |
Open |
3 & 4 |
Open |
1 & 3, 2 & 4 |
|
2.94v |
2 & 4 |
3 & 4 |
Open |
1 & 3, 2 & 4 |
|
3.10v |
3 & 4 |
3 & 4 |
Open |
1 & 3, 2 & 4 |
|
3.33v |
1 & 3 |
3 & 4 |
Open |
1 & 3, 2 & 4 |
|
3.53v |
1 & 3, 2 & 4 |
3 & 4 |
Open |
1 & 3, 2 & 4 |
|
Note: Pins designated should be in the closed position. | ||||
|
CPU VOLTAGE SELECTION (DUAL) | |||||
|
Voltage |
V core |
J100 |
J105 |
J107 |
J108 |
|
3.33v |
2.82v |
Open |
3 & 4 |
1 & 3, 2 & 4 |
Open |
|
3.33v |
2.94v |
2 & 4 |
3 & 4 |
1 & 3, 2 & 4 |
Open |
|
3.33v |
3.10v |
3 & 4 |
3 & 4 |
1 & 3, 2 & 4 |
Open |
|
3.44v |
2.82v |
Open |
2 & 4 |
1 & 3, 2 & 4 |
Open |
|
3.44v |
2.94v |
2 & 4 |
2 & 4 |
1 & 3, 2 & 4 |
Open |
|
3.44v |
3.10v |
3 & 4 |
2 & 4 |
1 & 3, 2 & 4 |
Open |
|
Note: Pins designated should be in the closed position. | |||||