15
Figure 2-26
Jumpers
HOT-641/P mainboard provides Jumpers JP11, JP12, JP13 and JP14 to figure the CPU core
clock multiplier. By inserting mini jumpers on these jumpers, the user can figure the Host Bus
Clock/CPU Core Clock ratio (multiplier) from 2.5X to 5X.
Figure 2-26 shows the position of JP11, JP12, JP13, JP14 and J201 on the mainboard.
Several hardware settings are made through the use of jumper caps to connect jumper pins on
the main board. The jumper's pin 1 on main board will be on the top or on the left when hold-
ing the main board with the keyboard connector away from yourself.
Jumpers with two pins will be shown as for Close (On) and for Open (Off).
To connect the pins, simply place a plastic jumper cap over the two pins.
Jumpers with three pins will be shown as for Pin 1-2 Close (On) and for Pin 2-3
Close (On). To connect the pins, simply place a plastic jumper cap over the two pins.
CPU External Clock (System Clock) Setting
HOT-641/P support System Clock (CPU External Clock) adjust from 66MHz to 112MHz.
System Clock 66, 68, 75, 83 MHz (for 66MHz based Pentium II/Celeron Processor) and 100,
103, 112 MHz (for 100MHz based Pentium II processor) configure on BIOS
"
Chipset Features
Setup".
Note:
1. For 66MHz based Pentium II/Celeron processors, 68, 75 and 83
MHz are for over-clock usage, it is not a recommended general practice.
2. For 100MHz based Pentium II processors, 103, 112 MHz is for over-clock
usage, it is not a recommended general practice.
CPU Multiplier and System Frequency Setting - JP11 ~ JP14 and J201
