What the heck is a Ferrite core?

[Xidus]

Just got an ATI radeon 8500. With it came a card to mail in for a free ferrite core kit if I need one. What the hell is a ferrite core? The picture shows a bulge on the monitor cable saying that's a ferrite core. Well my monitor cable doesn't have any buldges. I am perplexed.

 

[Akira13]

Ferrite = Iron.
I'm not sure what that has to do with a monitor cable though. You should mail in and get one, then let us know what it is/does.

 

[LordEdmond]

its a single turn choke
it stops the rf from traveling along the scrren of the monitor cable ( into the the pc or out )

 

[Gosharkss]

They prevent the video cable shield from acting like an antenna for radio frequencies generated by the video card. If your system is interfering your TV or radio reception you should use it.

 

[DougK62]

ATI will send you that for free and all it can do is help your situation - so go ahead and get it and use it. My monitor has one already, but I sent in the card anyway - I couldn't pass up the deal for only $.34