2-8.1 Jp 4: Cpu Clock Select - SOLTEK SL-85MR2 Manual

How to tackle with Jumpers:
• Do not remove the jumper when power is on. Always make sure the
power is off before changing any jumper settings. Otherwise, main-
board could be damaged.
• In the Jumper setting diagram, all jumper pins covered with black
marks stand for closed pins by jumper caps.

2-8.1 Jp 4: CPU Clock Select

Jp 4 is designed to select 100/133MHz CPU
clock for the system. Setting Jp 4 to 1-2 closed
will allow CPU on board to autodetect its own
frequency and apply it to the System Bus.
Setting Jp 4 to 2-3 closed will manually config-
ure a 100MHz CPU to 133MHz.
However, overclocking should always take the
whole mainboard into account. There is no 100%
guaranty of success. In case overclocking fails,
system boot will fail. You should then take the
Autodetect setting to boot system. Even more,
you should clear CMOS before booting system
( See JBat 1 Clear CMOS ).
Note on CPU Overclocking:
1. If you have successfully booted system with or without CPU overclock,
you still can do another CPU overclock in BIOS Setup. Please enter
BIOS Setup, choose "Frequency/Voltage Control" menu, and take
the "Use Linear" option of the "Use CPU Linear Frequency". Then
configure the "CPU Clock" item to raise your CPU clock.
2. CPU overclocking should take all components on board into account.
If you fail in BIOS overclocking, you will not be able to restart system.
In such case, Power off system and clear CMOS by JBAT1 as stated
in next section and then restart your system. And remember
reconfigure whatever should be reconfigured.
3. If your system is already fixed in a cabinet or case, you may not like
to take the trouble to clear CMOS. Then power on your system with
the power button on the cabinet and simultaneously press down the
"Insert" key of the keyboard until you see the initial bootup screen
appear. And remember you should also enter CMOS BIOS Setup
and choose "Load Optimized Defaults" to restore default BIOS .
Chapter 2 Hardware Setup
CPU Clock Select
1
1
27
Jp 4:
(Default)
1-2 closed
CPU Autodetect
2-3 closed
for 133MHz CPU
Clock