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Does your magsafe do this?

V

vbman213

macrumors 6502
Original poster
Well the first thing, if you press it up against your ear, can you hear a buzz. And second, when the computer is on, does the tone of that "buzz" change when you move you hand on the trackpad?

I'm experiencing some very weird stuff here.
 
Sorry, I personally never felt a need to press the magsafe connector against my ear. Were you particularly bored today? 😎
 
Jaro65 said:
Sorry, I personally never felt a need to press the magsafe connector against my ear. Were you particularly bored today? 😎
Click to expand...

No, my computer was sleeping and I was reading a book at my desk. And I was hearing a buzz that sounded like AM radio hiss at very low volume.
 
The PSU on my new MBP does this.

It's normal, though it could have been designed out by Apple.

The change in noise when you do something on the computer is the PSU adapting the amount of power being delivered.
 
Jaro65 said:
Sorry, I personally never felt a need to press the magsafe connector against my ear.
Click to expand...

Really? Mine tells me all sorts of stuff...that I should burn things and that everyone I know is against me.

To be fair, its hard to hear over the leprechaun at times...
 
I have the same problem.

To get to the point: Don't bother, you can't do much about it 😉

I already brought it in to an Apple Store, and they built in a new logic board and magsafe connector.
The first weeks after that repair, it was completely quiet, but it suddenly reappeared. It's the same with my girlfriend's macbook, so seems to be normal.
 
Hello-

I have an older MacBook Pro and 2 AC Adapters.

I have 1 Older Style (White Tip) & 1 Newer (Silver) AC Adapter

The older Adapter does not make this noise, however the newer silver one does. I think it's something with the different design that causes the issue.

As long as it's not dangerous it doesnt bother me, and I usually have a ceiling fan on that drowns it out. 🙂
 
Strange. I have an 07 MacBook, an 08 MacBook and a new 2010 MBP. None of them have made any noise like described here.
 
ive had this with many many power adapters.

This is because the power adapter is adapting the power output of your power socket to fit your computers needs. that hiss youre hearing is the resistance inside the adapter at work. Its perfectly normal.

what isnt normal is the fact that your power outlet is having variances on power output. This happens regularly in Turkey and is a major douche for the life expectancy of your battery.

if youre kinda still prickly on the subject i suggest you get a extender with a fuse inside it. That way if your power outputs go up where your adapter cand adapt and fail the actual power socket will fail instead of your AC adapter which costs 200 euros in Turkey.
 
The buzz is the processor idling at a frequency slow enough for you to hear. When you use the cursor with the trackpad it ups the frequency out of audible range.


I just pulled that out of my ass, but I've heard something about processors buzzing.


nOw2 said:
The PSU on my new MBP does this.

It's normal, though it could have been designed out by Apple.

The change in noise when you do something on the computer is the PSU adapting the amount of power being delivered.
Click to expand...
EDIT: This makes so much more sense than what I said.
 
Syonidism said:
if youre kinda still prickly on the subject i suggest you get a extender with a fuse inside it. That way if your power outputs go up where your adapter cand adapt and fail the actual power socket will fail instead of your AC adapter which costs 200 euros in Turkey.
Click to expand...

Please tell me you meant to write TL200 and not €200 😱
They recently went on sale here for £28 each at Play.com (now back at normal price).
 
vbman213 said:
Well the first thing, if you press it up against your ear, can you hear a buzz. And second, when the computer is on, does the tone of that "buzz" change when you move you hand on the trackpad?

I'm experiencing some very weird stuff here.
Click to expand...

Check your electric-socket earth connection. The buzz is because, a low voltage is passing through your body for earthing.

Immediately check your earth connection. Otherwise, when you not discharged, because of static electricity small components may get damaged.

One tip: Get discharged frequently. (you are statically being charged dude!) 😱 😀
 
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