IEI Integration IMBA-9454 v1.00 - Manual (Page 167)

IMBA-9454 Motherboard
Page 149
Spread Spectrum Clock [Disabled]
Use the Spread Spectrum Clock option to reduce the EMI. Excess EMI is generated
when the system clock generator pulses have extreme values. Spreading the pulse
spectrum modulates changes in the extreme values from spikes to flat curves, thus
reducing the EMI. This benefit may in some cases be outweighed by problems with
timing-critical devices, such as a clock-sensitive SCSI device.
Disabled D EFAULT EMI not reduced
Enabled EMI reduced
Onboard LAN1 [Enabled]
The Onboard LAN1 option enables or disables the on-board LAN1.
Enabled D EFAULT The on-board LAN1 controller is manually enabled
Disabled The on-board LAN1 controller is manually disabled
Onboard LAN2 [Enabled]
The Onboard LAN2 option enables or disables the on-board LAN2.
Enabled D EFAULT The on-board LAN2 controller is manually enabled
Disabled The on-board LAN2 controller is manually disabled