12
System Clock and CPU Multiplier Setting Manually - JP1
For whom like to set up system manually, listed tables show all the System Clock and CPU
Multiplier that HOT-591 can offer. Pin header 1~6 are used to adjust System Clock from
50MHz to 83 MHz. Pin header 7~12 are used to adjust CPU core multiplier from 1.5X to
5.5X.
Table 2-7 shows the System Clock from 50 MHz to 83 MHz.
Table 2-8 shows CPU Multiplier from 1.5X to 5.5X.
Note:
On HOT-591 75 and 83 MHz is for over-clock usage, it is not a recommended
general practice.
Multiplier
1.5 X
2 X
2.5 X
3 X
3.5 X
JP1
P7 ~ P12
Multiplier
4 X
4.5 X
5 X
5.5 X
JP1
P7 ~ P12
Table 2-8
System
Clock
50MHz
60MHz
66MHz
75MHz
83MHz
PCI
Clock
25MHz
30MHz
33MHz
37.5MHz
41.5MHz
JP1
P1 ~ P6
Table 2-7
Figure 2-2 : JP1 Jumper location
