Shuttle HOT-597, User Manual

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System Clock and CPU Multiplier Manual Setting
- SW1 & JA26
For whom like to set up system manually, listed tables show all the System Clock and CPU Multi-
plier that HOT-597 can offer. Pin header 1~3 of SW1 and JA26 are used to adjust System Clock
from 60 MHz to 100 MHz. Pin header 4~6 of SW1 are used to adjust CPU core multiplier from
1.5X to 5.5X.
Table 2-11 shows the System Clock from 66 MHz to 100 MHz.
Table 2-12 shows CPU Multiplier from 1.5X to 5.5X.
Multiplier SW1(4-6) Multiplier SW1(4-6)
1.5 X / 3.5 X 4 X
2 X 4.5 X
2.5 X 5 X
3 X 5.5 X
CPU External CLK
CPU AGP PCI
SW1(1-3)
/ JA26
66MHz 66MHz 33MHz
68MHz 68MHz 34MHz
75MHz 75MHz 37MHz
83MHz 55MHz 27MHz
95MHz 63MHz 31MHz
100MHz 66MHz 33MHz
Table 2-11
Table 2-12
Figure 2-2