M TECHNOLOGY, INC.
R548 MUSTANG-ULTRA
| Device Type | Mainboard |
| Processor | CX 6X86/IBM 6X86/CX 6X86L/IBM
6X86L/CX 686MX/IBM 6X86MX/ AM K5/AM K6/Pentium/Pentium MMX |
| Processor Speed | 90/100/120/133/150/166/180/200/233/266MHz |
| Chip Set | SIS |
| Video Chip Set | None |
| Maximum Onboard Memory | 384MB (EDO & SDRAM supported) |
| Maximum Video Memory | None |
| Cache | 512KB |
| BIOS | Award |
| Dimensions | 280mm x 220mm |
| I/O Options | 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connectors (2) |
| NPU Options | None |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| Power LED & keylock | C1 |
Floppy drive interface | CN4 |
| Speaker | C2 |
IDE interface 2 | CN5 |
| Turbo switch | C3 |
IDE interface 1 | CN6 |
| Turbo LED | C4 |
IR connector | IR1 |
| Reset switch | C5 |
PS/2 mouse interface | J1 |
| IDE interface LED | C6 |
32-bit PCI slots | PC1 – PC4 |
| Serial port 2 | CN1 |
USB connector 1 | USB1 |
| Serial port 1 | CN2 |
USB connector 2 | USB2 |
| Parallel port | CN3 |
||
USER CONFIGURABLE SETTINGS |
|||
Function |
Label |
Position |
|
» |
Factory configured - do not alter | JP10 |
Open |
» |
CMOS memory normal operation | JP18 |
Pins 1 & 2 closed |
| CMOS memory clear | JP18 |
Pins 2 & 3 closed |
|
SIMM CONFIGURATION |
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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 |
| Note: Board accepts EDO memory. | ||
DIMM CONFIGURATION |
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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) 8M x 64 |
(1) 8M x 64 |
| Note: Board accepts EDO & SDRAM memory. | ||
DIMM VOLTAGE CONFIGURATION |
|
Voltage |
JP1 |
3.3v |
Pins 5 & 6, 7 & 8 closed |
5v |
Pins 1 & 2, 3 & 4 closed |
CACHE CONFIGURATION |
|
Size |
Bank 0 |
512KB |
(2) 64K x 32 |
CPU SPEED SELECTION (CX 6X86) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
150MHz |
60MHz |
2x |
Closed |
Open |
Open |
Closed |
Open |
166MHz |
66MHz |
2x |
Open |
Open |
Open |
Closed |
Open |
200MHz |
75MHz |
2x |
Open |
Closed |
Closed |
Closed |
Open |
CPU SPEED SELECTION (IBM 6X86) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
150MHz |
60MHz |
2x |
Closed |
Open |
Open |
Closed |
Open |
166MHz |
66MHz |
2x |
Open |
Open |
Open |
Closed |
Open |
200MHz |
75MHz |
2x |
Open |
Closed |
Closed |
Closed |
Open |
CPU SPEED SELECTION (CX 6X86L) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
150MHz |
60MHz |
2x |
Closed |
Open |
Open |
Closed |
Open |
166MHz |
66MHz |
2x |
Open |
Open |
Open |
Closed |
Open |
200MHz |
75MHz |
2x |
Open |
Closed |
Closed |
Closed |
Open |
CPU SPEED SELECTION (IBM 6X86L) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
150MHz |
60MHz |
2x |
Closed |
Open |
Open |
Closed |
Open |
166MHz |
66MHz |
2x |
Open |
Open |
Open |
Closed |
Open |
200MHz |
75MHz |
2x |
Open |
Closed |
Closed |
Closed |
Open |
CPU SPEED SELECTION (CX 6X86MX) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
166MHz |
60MHz |
2.5x |
Closed |
Open |
Open |
Closed |
Closed |
200MHz |
66MHz |
2.5x |
Open |
Open |
Open |
Closed |
Closed |
200MHz |
75MHz |
3x |
Open |
Open |
Closed |
Closed |
Open |
233MHz |
66MHz |
3x |
Open |
Open |
Open |
Closed |
Open |
233MHz |
75MHz |
2.5x |
Open |
Closed |
Closed |
Closed |
Closed |
266MHz |
66MHz |
3.5x |
Open |
Open |
Open |
Closed |
Open |
266MHz |
75MHz |
3x |
Open |
Closed |
Closed |
Closed |
Closed |
CPU SPEED SELECTION (IBM 6X86MX) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
166MHz |
60MHz |
2.5x |
Closed |
Open |
Open |
Closed |
Closed |
200MHz |
66MHz |
2.5x |
Open |
Open |
Open |
Closed |
Closed |
200MHz |
75MHz |
3x |
Open |
Open |
Closed |
Closed |
Open |
233MHz |
66MHz |
3x |
Open |
Open |
Open |
Closed |
Open |
233MHz |
75MHz |
2.5x |
Open |
Closed |
Closed |
Closed |
Closed |
266MHz |
66MHz |
3.5x |
Open |
Open |
Open |
Closed |
Open |
266MHz |
75MHz |
3x |
Open |
Closed |
Closed |
Closed |
Closed |
CPU SPEED SELECTION (AM K5) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
90MHz |
60MHz |
1.5x |
Closed |
Open |
Open |
Open |
Open |
100MHz |
66MHz |
1.5x |
Open |
Open |
Open |
Open |
Open |
166MHz |
66MHz |
2.5x |
Open |
Open |
Open |
Closed |
Open |
CPU SPEED SELECTION (AM K6) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
166MHz |
66MHz |
2.5x |
Open |
Open |
Open |
Closed |
Closed |
200MHz |
66MHz |
3x |
Open |
Open |
Open |
Open |
Closed |
233MHz |
66MHz |
3.5x |
Open |
Open |
Open |
Open |
Open |
CPU SPEED SELECTION (INTEL) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
90MHz |
60MHz |
1.5x |
Closed |
Open |
Open |
Open |
Open |
100MHz |
66MHz |
1.5x |
Open |
Open |
Open |
Open |
Open |
120MHz |
60MHz |
2x |
Closed |
Open |
Open |
Closed |
Open |
133MHz |
66MHz |
2x |
Open |
Open |
Open |
Closed |
Open |
150MHz |
60MHz |
2.5x |
Closed |
Open |
Open |
Closed |
Closed |
166MHz |
66MHz |
2.5x |
Open |
Open |
Open |
Closed |
Closed |
180MHz |
60MHz |
3x |
Closed |
Open |
Open |
Open |
Closed |
200MHz |
66MHz |
3x |
Open |
Open |
Open |
Open |
Closed |
CPU SPEED SELECTION (INTEL MMX) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
JP8 |
JP9 |
166MHz |
66MHz |
2.5x |
Open |
Open |
Open |
Closed |
Closed |
200MHz |
66MHz |
3x |
Open |
Open |
Open |
Open |
Closed |
233MHz |
66MHz |
3.5x |
Open |
Open |
Open |
Open |
Open |
CPU VOLTAGE SELECTION (SINGLE) |
||
Voltage |
JP6 |
JP12 |
3.4v |
Pins 3 & 5, 4 & 6 closed |
Pins 3 & 4 closed |
3.5v |
Pins 3 & 5, 4 & 6 closed |
Pins 1 & 2 closed |
CPU VOLTAGE SELECTION (DUAL) |
|||
Voltage |
V core |
JP6 |
JP12 |
3.4v |
2.1v |
Pins 1 & 3, 2 & 4 closed |
Pins 11 & 12 closed |
3.4v |
2.8v |
Pins 1 & 3, 2 & 4 closed |
Pins 9 & 10 closed |
3.4v |
2.9v |
Pins 1 & 3, 2 & 4 closed |
Pins 7 & 8 closed |
3.4v |
3.2v |
Pins 1 & 3, 2 & 4 closed |
Pins 5 & 6 closed |
BIOS SELECTION |
||
Type |
JP16 |
JP17 |
1M/12v |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
1M/5v |
Pins 1 & 2 closed |
Pins 2 & 3 closed |