2-8.3 Jp8: Cpu Clock/Overclock Select - SOLTEK 85LIR2 Manual

85LIR2 / 85LIR2-L

2-8.3 Jp8: CPU Clock/Overclock Select

Jp8 is designed on board as a jumper for CPU clock select and 100MHz
to 133MHz CPU overclocking. With Jp8, user can choose the way for a
100MHz CPU to run an overclock on board.
1. Before setting the CPU clock, read the Identification Legend on the
CPU, find the Max FSB and divide it by two. The result is the default
CPU clock of your CPU.
2. If Jp8 is set to 1-2 closed, CPU clock will
be autodetected by BIOS, indicating that
overclock is not desired. The CPU will boot
system with the default CPU clock on the
CPU you use.
3. If Jp8 is set to 2-3 closed, CPU is set to
133MHz CPU clock, indicating that 133MHz
overclock is desired. The CPU will try to
boot system with 133MHz even if a 100MHz
CPU is used.
However, if overclok fails, system will fail
to boot. In such case, restore Jp8 to default
setting and clear CMOS by jumper before
restarting system.
Notes 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
below and then restart your system. And remember to 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 case and simultaneously press down the
"Insert" key on 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 .
CPU Clock Select
1-2 closed
1 CPU Autodetect
2-3 closed
133MHz CPU
1
Clock Selected
28
Jp8
(Default)