American Megatrends Pegasus Settings Manual

Jumper Settings

Pegasus
(Series 759)

CPU Speed

J-16
200 MHz x
233 MHz x
266 MHz x
300 MHz x
333 MHz x
x = short pins

MUL

Pins 1 - 2
3x
3.5x
4x
4.5x
5x
x = short pins

Core Voltages for J-12

Voltage 1 - 6
3.50 Volts
3.40 Volts
3.3 Volts
3.1 Volts
3.0 Volts
2.9 Volts
2.8 Volts
2.7 Volts
2.6 Volts
2.4 Volts
2.3 Volts
2.2 Volts
2.1 Volts
2.05 Volts x
2.0 Volts x
1.95 Volts x
1.90 Volts x
1.85 Volts x
1.8 Volts x
None None
J-12 - CPU Core Voltage may not be on all boards
x = short pins

CMOS Drain

J29 - Clear CMOS, Erase Password
Open = Normal operation (factory setting)
J-17 J-18
x
x
x
x
x
J-22
Pins 3 - 4
x
x
x
x
2 - 7 3 - 8
x x
x x
x x
x
x
x
x
x
x
x
x x
x x
x x
x x
x
x
Shorted = The contents of CMOS Ram are destroyed
J-19 J-21
1 * 2
1 * 2
1 * 2
1 * 2
1 * 2
Pins 5 - 6 Pins 7 - 8
X x
x x
x x
x
x x
4 - 9 5 - 10
x x
x
x
x x
x
x
x x
x
x x
x
x
x x
x
x
x x
x
J-22
3x
3.5x
4x
4.5x
5x