I can't imagine why any modern computer would need this. Back in the old athlon days, (P2 thru P4 for IBMers) I could understand, I tweaked my services and optimized what I could, but now? I have enough power to run, what?, 10, 20, 30 or more apps and not slow foobar down. If you taken the time to isolate your power cables, your not getting any interference unless something is wrong or you've really gone cheap.
Still, fix the things you've been asked to, or don't. It's really up to you, but you will get more bees with honey. And who knows, betting against me has netted some really good gains at times.