Foxconn P31A Series User Manual
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Chapter 1 Main Features
GMCH_FSBSEL Jumper: GMCH_FSBSEL 1/2
This series of motherboard have jumpers on-board,
which may be used to overclock by adjusting the jumper
setting. You can also overclock by configuring BIOS or
combining the jumper and BIOS settings. In default status,
the 2 jumpers are set to pins 1-2, and the frequency is the
actual frequency of CPU and memory. For overclocking,
you may set the jumpers as the following state in chart,
and the related parameters are for your reference, then
you can choose to enter the BIOS setup during POST to
configure the settings of “CPU Clock”. The frequency of
CPU and memory will increase by the same percentage.
Default
1
1
1
No Jumper Cap
1. Make sure your PC is turned off before adjusting the jumper settings.
2. The actual overclocking frequency is determined by your CPU, Memory and
Graphics card.
3. A very high frequency may cause the system to become unstable.
Attention
GMCH_FSBSEL 1/2
G M C H_
F S B S E L 1
GM C H_
F S B S E L 2
C P U Typ e
M em o ry
Type
A ctual
M em ory
F req uency
3 33/13 33
800
8 00
667
6 67
2 66/10 66
800
6 40
667
5 33
20 0/800
800
4 80
667
4 00
3 33/13 33
800
10 00
667
8 35
2 66/10 66
800
8 00
667
6 67
20 0/800
800
601
667
5 00
3 33/13 33
800
13 33
667
111 0
2 66/10 66
800
10 64
667
8 87
20 0/800
800
8 00
667
6 67
1
1
1
1
1
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