18
Jumper JP3
CPU Voltage Select
Set Jumper JP3 according to the voltage of the CPU installed on the
G586VPM/T system board.
1-2 On: 3.45V - 3.6V
(Default)
2-3 On: 3.3V - 3.45V
3
2
1
3
2
1
Installing Upgrade CPUs
The G586VPM/T is equipped with a 320-pin Zero Insertion Force
(ZIF) socket at location U5 of the system board. This socket is de-
signed for easy removal of an old CPU and easy insertion of an up-
grade CPU. The socket allows you to carefully place the new CPU
into its position. If you need to apply excessive force to insert the CPU,
you are not installing the CPU correctly.
Warning:
Open the socket only if you are actually installing a CPU. The warranty
on the original CPU will be voided if the S/N seal is broken.
Before proceeding with the upgrade, take note of the following. The mi-
croprocessor and heat sink may be hot if the system has been running.
To avoid the possibility of a burn, power the system off and let the
processor and heat sink cool for 20 minutes.
The 320-pin ZIF socket consists of five rows of pin holes on each side.
To prevent improper CPU installation, the ZIF socket has a Plug/Keying
mechanism. Several holes in the socket are plugged so that CPUs will
go in only one way. If you cannot easily insert the CPU, verify that pin 1
of the CPU is aligned with pin 1 of the socket. A warning note — be
extremely careful to match pin 1 of the CPU with pin 1 of the socket.
Usually pin 1 of the CPU is marked by a dot or a cut corner.
