Acer M5640, M1640 manual SSE/SSE2

Parameter	Description	Options
Spread	When the system clock generator pulses,	[Enabled], [Disabled]
Spectrum	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
	case be outweighed by problems with
	timing-critical devices, such as a
	clock-sensitive SCSI device.
HT Spread	Enables or Disables HT Spread Spectrum.	[Enabled], [Disabled]
Spectrum	HT is Hyper Transport between CPU and
	North Bridge.
SSE/SSE2	This feature controls the availability of the	[Enabled], [Disabled]
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.

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