Acer Aspire M5620 Service Manual page 39

Parameter
Spread When the system clock generator pulses, the
Spectrum 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 case be
outweighed by problems with timing-critical
devices, such as a clock-sensitive SCSI
device.
HT Spread Enables or Disables HT Spread Spectrum.
Spectrum HT is Hyper Transport between CPU and
North Bridge.
SSE/SSE2 This feature controls the availability of the
Instructions processor's SSE and SSE2 instruction sets.
When enabled, the processor's SSE and
SSE2 instruction sets are enabled. Software
applications can make use of those
instructions to better process large amounts
of data quickly.
When disabled, the processor's SSE and
SSE2 instruction sets are disabled. Software
applications will not be able to use those
instructions to process multiple data
elements simultaneously. However, the
processor's MMX instruction set will still be
available for use. It is highly recommended
that you leave this BIOS feature at the
default setting.
Description Options
[Enabled],
[Disabled]
[Enabled],
[Disabled]
[Enabled],
[Disabled]
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