
PCI/ISA System Board
Jumper Settings for CPU
ISA
ISA
ISA
ISA
PCI 4
VL82C592
VL82C592
VL82C593
VL82C591
PC87334
Socket 5
(ZIF Socket)
Socket 5
(ZIF Socket)
Primary CPU
Secondary CPU
Cache Module Slot
PCI 3
PCI 2
PCI 1
Locations of Jumpers J1, JP3, JP11, JP12 and JP14
on the G586VPM System Board
JP3
JP12
JP11
J1
CMD 646
JP14
2-19
u
Installation Overview
Jumpers J1, JP11 and JP12
CPU External Clock Speed and CPU Internal/External Speed Ratio
To allow optimum performance of your Pentium proces-
sors, the CPUs’ external clock speed and its internal/
external speed ratio must be set accordingly. For example,
if you are using a 100MHz Pentium processor, set the
external clock speed (J1) to 50MHz and the internal/
external speed ratio (JP11 and JP12) to 1.5, which is the
recommended speed ratio of a 100MHz processor.