A7N8X Deluxe, 1003 bios versus 1005

[me]

I found that bios 1003 will not allow disabling of "Spread Spectrum" and
with 1005 it allows it. I guess there are alot more differences in the
versions than what Asus lists.

 

[stanmc]

I found that bios 1003 will not allow disabling of "Spread Spectrum" and
with 1005 it allows it. I guess there are alot more differences in the
versions than what Asus lists.

How much extra computing performance will we get if we disable Spread
Spectrum?

 

[bp]

How much extra computing performance will we get if we disable Spread
Spectrum?

Better question:
What the heck is Spread Spectrum?

 

[edde]

FSB Spread Spectrum varies the FSB speed by set amount (.50% or 1.0%).
Before this bios, it was stuck at .50%, so my cpu speed would vary by +/-
..50% at every boot. Sometimes it would 2090mhz, sometimes 2075mhz.
From what I understand this is done because of EMF interference or
something.
However, for stability, and sometimes performance, it's best to keep this
disabled.