Gigabyte GA-6WMMC7 User Manual page 4

I. Quick Installation Guide :
CPU SPEED SETUP
The system bus frequency can be switched at 66MHz / 100MHz / 133MHz
and Auto by adjusting JP5,JP23. The CPU ratio is control by BIOS.
The CPU speed must match with the frequency ratio. It will cause
system hanging up if the frequency ratio is higher than that of CPU.
Note: Please set the CPU host frequency in accordance with your
processor's specifications. We don't recommend you to set the
system bus frequency over the CPU's specification because these
specific bus frequencies are not the standard specifications for
CPU, chipset and most of the peripherals. Whether your system can
run under these specific bus frequencies properly will depend on
your hardware configurations, including CPU, Chipsets, SDRAM,
Cards....etc.
JP5 / JP23 : Set System Bus Speed (For GMCH Intel 82810E)
(See Figure-1)
GMCH Intel 82810E
1
JP23
1-2 Auto
1
JP5
1-2 Auto
ICH/
82801
FWH32
Note: JP23 is only available when the motherboard use 82810E chipset.
AC97
1
2-3 66/100
133
1
2-3 66 100/133
GMCH
82810
810E
Figure-1
2
Quick Installation Guide
1
INTEL CPU CLK SET
JP5 JP23
Auto 1-2 1-2
66 2-3 2-3
1
100 NC 2-3
CPU
133 NC NC