16
CPU Internal
Speed
75MHz
90MHz
100MHz
100MHz
110MHz
120MHz
133MHz
150MHz
166MHz
180MHz
200MHz
CPU External
Speed
50MHz
60MHz
50MHz
66MHz
55MHz
60MHz
66MHz
60MHz
66MHz
60MHz
66MHz
Pins 1-2
On
On
On
On
On
On
On
On
On
On
On
Pins 3-4
Off
Off
Off
On
On
Off
On
Off
On
Off
On
Pins 5-6
Off
On
Off
On
Off
On
On
On
On
On
On
Jumper J1
CPU Installation
The G586VPM/T is equipped with a 320-pin Zero Insertion Force
(ZIF) socket at location U5 of the system board. The ZIF socket al-
lows for easy installation of upgrade CPUs. Make sure all jumpers are
set correctly before applying power, or you may damage the CPU or
system board. Refer to page 12 for the location of the ZIF socket.
Jumper Settings for CPU
Jumpers J1, JP11 and JP12
CPU External Clock Speed and CPU Internal/External Speed Ratio
To allow optimum performance of your CPU, the CPU’s external clock
speed and its internal/external speed ratio must be set accordingly. For
example, if you are using 100MHz Cyrix P120+ CPU, set external
clock speed to 50MHz (J1) and set JP11/JP12 frequency ratio to 2,
which is the recommended speed ratio of a Cyrix 100MHz processor.
For a 100MHz Intel CPU, set the external clock speed to 66MHz and
set the frequency ratio to 1.5x.
CPU Brand
Intel, AMD
Intel, AMD
Cyrix
Intel
Cyrix
Intel, Cyrix
Intel, Cyrix
Intel
Intel
Intel
Intel
The Cyrix P200+ CPU is not supported on this system board, because
this CPU has 75MHz bus speed that is not available on this system
board. Please use a different model of system board to run this CPU.
Please contact your sales person or dealer for the availability of this
board.
