SSC Spread Spectrum Clocking – Hard Drives

A little known feature on many new hard drives called SSC has caused a lot of people to wonder if they should turn it on.

wpid-screenshot2011-07-07at10-46-14am-2011-08-4-11-252.png

The answer is NO unless you are working as an electrical engineer and are using an oscilloscope nearby, or if you are working on the large hadron collider and can’t have any interference. (If you are working on the large hadron collider please contact me because you are my new best friend).

wpid-sprdspclk-2011-08-4-11-252.gif

A default hard drive emits electrical radiation similar to the green line

A hard drive with SSC enabled would look more like the red line.

I can’t verify this, however supposedly enabling SSC slows down the spin up times of the hard drive thus making it a fraction slower in tests.

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About spuder
spuder is a "super computer" support engineer by day, and tinkerer / hobbyist by night.

One Response to SSC Spread Spectrum Clocking – Hard Drives

  1. I agree you are good spuder! Just fantastic! Your penning style is admirable and the way you addressed the topic with grace is commendable. Since i am intrigued, I presume you are an expert on this subject. I am subscribing to your incoming updates from now on.

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