Chosen Solution
So about two months ago my iMac’s hard drive dies so I replace it; no problems, easy enough. Been using it for the past two months or maybe more perfectly fine; still no problems. And today I look at the old one sitting on my desk and see the EMI foam is still on it. Is this important? What purpose does it really serve. I know about EMI but I’ve never herd of a computer needing one little tiny square of foam on it’s hard drive to protect it. I’ve only ever seen a problem from having 50+ computers all with open cases next to each other, and space heaters. So is it really worth taking it all apart again to stick the foam on the new HDD? Thanks in advance
That foam is used to help hold the heat sensor in place. If you have it well secured you probably don’t need it. If your fans start racing, I would replace it.
Thank you much. My iMac is not shaking and bouncing around, or even lightly vibrating at all. It just rocks :p I’ll keep that foam in case I’m back into it then I’ll stick it on. It seems fine to leave it off to me if it’s just for vibration and not really EMI protection. The iMac’s hard drive is pretty secure within it’s cradle. Thanks again
the foam pad with the shiny outer edges is grounding. they say it in their take-apart video for replacing hard drive.
