2-8.1 How To Tackle The Jumpers; 2-8.2 Jclk1: Cpu Clock Select - SOLTEK K8AV2-R Manual

2-8.1 How to tackle the Jumpers:

1 2
If a pin-header (of 2 or more pins) is
designed in such a way that its pins
can be closed or linked together to
set up a specific function, this header
is called a jumper in this manual.
• A Jumper is usually but not necessarily denoted by "Jp( )" .
• In the Jumper setting diagram, all jumper pins covered with
black marks stand for closed pins with jumper cap.
1
Jp (X)
Jumper with
Pin 2-3 closed
• Do not remove any jumper cap when power is on. Always
make sure the power is off before changing any jumper settings.
Otherwise, mainboard could be damaged.

2-8.2 JCLK1: CPU Clock Select

JCLK1 is designed on board as an 8-pin jumper for CPU clock select.
1. Select the CPU clock you want from 200/233/266/270MHz and set
JCLK1 to match your choice.
2. If you select a CPU clock which is higher than your default CPU
clock, it may fail to boot system. You should restore the default setting
and then clear CMOS to reboot your system. (See Clear CMOS in
next paragraph.)
(default)
200MHz
7-8 closed
1 3 5 7
3
A 3-pin Jumper
3 1
Jumper with
all pins open
JCLK1: CPU Clock Select
233MHz
3-4 closed
1 3 5 7
25
Chapter 2 Hardware Setup
A 2-pin
Jumper
Cap
The conductor inside the cap
links two header-pins together.
3 1
Jumper with
Pin 1-2 closed
266MHz 270MHz
1-2 closed
1-2 closed
3-4 closed
1 3 5 7
1 3 5 7
3