INSTALLATION
Installation Guide
11
Setting the Jumpers
Jumpers are used on this mainboard to select various settings and features. A 2-pin
jumper has two settings: Open and Short (or Closed). The jumper is closed by
placing the Jumper Cap across the two pins, thereby connecting them. 3-pin
jumpers can be set to pins 1-2 or 2-3 connected. Pin-1 is labeled on the circuit
board.
3-pin Jumper
2-pin Jumper
Pin 1-2
Open
Pin 2-3
Short
CPU Clock Selection Jumper (JP5)
After installing the CPU, you must set the clock selection jumper to match the
frequency of the CPU. Find the Jumper Blocks labeled JP5 on the mainboard. Set
the jumper according to the table below and the figure next page for the CPU
frequency you are using.
CPU Clock
Ratio
Bus Clock
233MHz
x3.5
66MHz
266MHz
x4.0
66MHz
300MHz
x4.5
66MHz
333MHz
x5.0
66MHz
366MHz
x5.5
66MHz
350MHz
x3.5
100MHz
400MHz
x4.0
100MHz
450MHz
x4.5
100MHz
500MHz
x5.0
100MHz
550MHz
x5.5
100MHz
600MHz
x6.0
100MHz
650MHz
x6.5
100MHz
700MHz
x7.0
100MHz
533MHz
x4.0
133MHz
600MHz
x4.5
133MHz
667MHz
x5.0
133MHz
733MHz
x5.5
133MHz
§
The CPU Clock corresponds to the
number marked on the CPU. The
Bus Clock when multiplied with
the Ratio gives the CPU Clock.
§
If you are uncertain about the speed
requirements of your particular
CPU, you should obtain Technical
Documentation from the CPU
manufacturer.
§
New settings may be available for
new CPU products.
§
Such information is available via
the Intel WWW site.
