DTK PAM-0057V, User Manual

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Jumpe r Settings
13
2.5 CPU TO BUS FREQUENCY RATIO (S7,S8,S9)
These jumpers set the frequency ratio between the Internal frequency of the CPU and
the External frequency (called the Bus clock) within the CPU. These must be set
together with the below jumpers CPU External (Bus) Frequency Selection.
2.6 CPU EXTERNAL (BUS) FREQUENCY
SELECTION (S10,S11,S12)
These switches tell the clock generator what frequency to send to the CPU. The Bus
clock times the Bus Ratio equals the CPU’s Internal frequency.
2.7 CPU SPEED (S7 - S12)
CPU Type Freq. Ratio Bus Ratio Setting Bus Freq. Setting
Freq. S7 S8 S9 S10 S11 S12
Pentium 90MHz 1.5x 60MHz open open open close open open
Pentium 100MHz 1.5x 66MHz open open open open open open
Pentium 120MHz 2.0x 60MHz close open open close open open
Pentium 133MHz 2.0x 66MHz close open open open open open
Pentium 150MHz 2.5x 60MHz close close open close open open
Pentium 166MHz 2.5x 66MHz close close open open open open
Pentium 200MHz 3.0x 66MHz open close open open open open
Pentium w/MMX 166MHz 2.5x 66MHz close close open open open open
Pentium w/MMX 200MHz 3.0x 66MHz open close open open open open
Pentium w/MMX 233MHz 3.5x 66MHz open open open open open open
AMD-K5-PR166 166MHz 2.5x 66MHz close close open open open open
AMD-K5-PR133 133MHz 2.0x 66MHz close open open open open open
AMD-K5-PR120 120MHz 2.0x 60MHz close open open close open open
AMD-K6/300 300MHz 4.5x 66MHz close close close open open open
AMD-K6/266 266MHz 4.0x 66MHz close open close open open open
AMD-K6-2/266 266MHz 4.0x 66MHz close open close open open open
AMD-K6/233 233MHz 3.5x 66MHz open open open open open open
AMD-K6/200 200MHz 3.0x 66MHz open close open open open open
To be continued.....
Table 1a