DFI P5BTX/L User Manual page 19

2.2.2.1 Jumper Settings of the Processors
A processor' s internal clock speed is the actual internal operating
clock of the processor. Its frequency ratio differs from one processor
to another. An Intel
the frequency ratio to become the internal clock speed. Internal clock
speed is the commonly known speed of Intel
market and is the actual operating clock of the processor (external
bus clock x frequency ratio = internal clock speed). Cyrix
®
AMD processors use the PR-rating system which is the overall
processor performance rating.
The voltage of the processors are divided into Single voltage and
Dual voltage processors. Single voltage processors include Intel
® ®
Pentium , Cyrix
processors include Intel Pentium
®
Cyrix 6x86L and 6x86MX, and AMD
all jumpers are set correctly before applying power or you may
damage the processor or system board. Use a needle-nosed plier to
move the jumpers if necessary.
The table below shows the External System Bus Clock of the
processors supported by the system board and their corresponding
PCI Clock and ISA Bus Clock.
Ext. System Bus Clock
60MHz
66MHz
J P6
J P7
Hardware Installation
®
processor will multiply the external bus clock by
®
6x86 and AMD K5 processors. Dual voltage
®
processors with MMX technology,
®
K6 processors. Make sure
PCI CLK
30MHz
33MHz
J P 1
J P 2
J P3
®
processors in the
®
and
ISA Bus CLK
7.5MHz
8.25MHz
J P8
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