6. BIOS Setup
72
SPI-8150-LVA, SPI-8151-LVA
Function description Choices
Shutdown Temperature
Enables you to set the maximum
temperature the system can reach before
powering down.
6.9. Frequency/Voltage Control
Function description Choices
Auto Detect DIMM / PCI CLK
To reduce the occurrence of
electromagnetic interference (EMI), the
BIOS detects the presence or absence of
components in DIMM and PCI slots and
turns off system clock generator pulses to
empty slots.
Spread Spectrum
When the system clock generator pulses,
the extreme values of the pulse generate
excess EMI. Enabling pulse spectrum
spread modulation changes the extreme
values from spikes to flat curves, thus
reducing EMI. This benefit may in some
cases be outweighed by problems with
timing-critical devices, such as a clock-
sensitive SCSI device.
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