MacBook Pro :: Static Electricity - Is This Normal?
Aug 31, 2007
I recently purchased the latest iteration of the MBP 2.2 ghz. When plugged into a wall socket (220v here in HK), if I touch the lid I can feel a light electrical current in my hand - similar to the feeling of electric massagers, a light vibrating feeling. I didn't notice this while plugged in in the States (though I bought the comp here in HK). It doesn't hurt, but is this normal, or something I should be concerned about?
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Jan 24, 2010
Not familiar with the mac at all, as this post will demonstrate On the desktop, the background is now expanded and when you move the cursor, it navigates by an annoying combination moving the cursor and moving the background until an icon is under the arrow. I screwed around with the display and some other preferences, but i cant figure out which setting I need to modify to get it back to a static background (of normal size) and a cursor that moves to an icon.
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Apr 23, 2012
macbook pro leakage of electricity when i insert magsafe connector, the light become green. but i touch pro, i find leakage of electricity. then i touch the iphone which is charging by pro , i find leakage of electricity too. now , i am happy i still alive , and i try to insert magsafe connector again , leakage of electricity is not exist. i afraid to hits by leakage
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Jul 28, 2010
Haven't found anything relevant on this. Basically my 2010 15" MBP just emptied its battery and is almost fully charged now. All this while it was plugged into electricity. Why?
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Mar 22, 2009
I have the aluminum MacBook (<3) and it is often found on my desk, in front of my aluminum desk lamp. I was writing a paper and had one hand on my touchpad and touched my (off, but plugged in) light with my other hand. My screen dimmed just a little bit, approx the brightness between the two highest lighting levels. Even when not touching my touchpad, just touching my light, my screen did the same thing. Depending on WHERE on the lamp I touch, it affects the brightness... but only on the bell surrounding the light bulb, no other components of the light.
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Jul 8, 2009
I bought one of these: [URL] and decided to do an experiment, now on standby (Laptop cover closed) it consumes 1.432 per night (8 hours). Laptop on standby, Cover Open but Display in Sleep mode for 8 hours costs 4.731 per day. So that means per month on standby at night, my Macbook costs 44.392. This can't be right? Because if it is, I might have to turn it off at night from now on.
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Sep 29, 2009
(Electricity as in AC power.) I've been using the brightness controls (F keys) to turn off the screen at night and leave my computer running. I just assumed it uses less AC power that way and I'm saving some electricity but I don't know a lot about electricals to confirm my theory. Does anyone know?
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Jun 26, 2012
charger exploded due to electricity surge, Does the apple care warranty cover the charger
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May 18, 2012
My MacBook Pro recently started to make strange noises like an electricity cable was sparkling. Today I closed the screen to move it and started to make a greater sound like an old ventilator when I opened back then it went into sleeping,?
Info:
MacBook Pro, Mac OS X (10.6.7)
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Feb 9, 2010
I bought this item from ebay:
[URL]
(item number: 360222254116)
When I run my finger anywhere over the aluminium chassis my finger feels like either the laptop is vibrating, or there is a tiny grain of sand under my finger tip.
I know these are both untrue as when my finger is stationary it doesnt do it, and also I can use any finger or even my wrist as i type this.
Then, when I unplug the magsafe, it ceases to do it!
Am I barking up the wrong tree, and also why does it do it only when my finger is moving?
Is this a new issue or has anyone else had their replacement charger causing a funny feeling under the fingers?
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Apr 5, 2012
Like two months ago, my MBP started to work really slow when not plugged to electricity, but as soon as I plug it in, my MBP works perfectly. I already sent it to apple for they to fix it, but they solved other issued except for that one. Please, any idea what could it be.
Info:
MacBook Pro
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Mar 31, 2012
The iMac having a maximum wattage of 350w, would it be better to plug it in a 110v outlet or a 220v outlet. Which outlet has cleaner electricity/less noise and which will make the iMac work better, last longer or operate better. Which will save money? I heard 220v is better for hight powered gadgets and appliances, at 350w, is this iMac a high powered or a low powered machine?
Info:
iMac, Mac OS X (10.7.3), iMac Late 2009
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Dec 17, 2010
its all in the title. Im using a netgear wpn824
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Dec 22, 2008
This has been driving me nuts for a few months now. My macbook keeps emitting a sound very much like static. Only today, I realized that this sound goes away when the processor is working. So if I scroll down in Safari, open a New Folder, etc, the sound briefly pauses before resuming again. Almost sounds like a refrigerator. It bugs me a lot lot. Anybody else having this issue? Or has Apple been able to fix this for anyone?
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Jul 3, 2009
I keep getting zapped - I think its when I touch the trackpad with my palm bzap. 15" uMBP. Anyone else noticed the same thing happening?
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Jul 29, 2009
I connected my MacBook Pro to my TV (non-HD) using a 3.5 to L/R composite for audio (from headset hole) and an Apple DVI to S-Video/composite for video. I'm using the S-video part of the adapter. I get good sound out of both channels, but when I connect the S-video cable, I immediately get static feedback from the stereo speakers (the L/R composites are connected directly into my stereo receiver and the S-video goes into my TV).
The video quality is fine when it's connected...
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Aug 14, 2009
I bought this in hopes of connecting my Macbook to my tv: [URL]
So I connected it, but all I get is a very static-y image... no matter what resolution it is, it still has static/distortion.
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Aug 17, 2009
I'm trying to connect my Macbook to my work internet via an ethernet connection- I do not have access to the main router, just a ethernet jack. Currently, I have a desktop PC at work that works fine and when I plug in my Macbook, the machine does not recognize the internet. I spoke with my IT department who said that I need a static IP address but they do not support Apple so I'm on my own. I tried typing ipconfig in the command window and got 3 numbers : IP address, subnet mask and gatewy address. In the system prefs I typed in the IP number, subnet mask but am not sure where to put the gateway address - Still can't connect to internet -
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Oct 8, 2009
I just walked in the door and shook my mouse to wake up the screen. My Macbook Pro's display came up instantly (and normally) but the second monitor... a SyncMaster 220WM hooked up via mini displayport to DVI, showed nothing but snow... like exactly what you'd see if a TV station wasn't getting reception.
I'm running on the 9600m GT at the moment. 2.66Ghz C2D mid-2009 MBP unibody.
I waited about two minutes... and the image of my second desktop came back to normal in an instant. No excessive fan or heat... no need to restart, no kernel panic... nothing of that sort. And the kind of static that showed up again reminded me of either a TV channel with no reception... or the static you see when you boot into a PS3 game via HDMI... you get a momentary bit of static when it negotiates the HDCP signal.
I never encountered this issue using the same cable connected to my SR MBP with DVI.
Is this a graphics card issue? or an issue with the mini-displayport DVI adapter? Was it having a hard time negotiating HDCP?
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Jan 7, 2010
Twice this week I?ve been shocked by Static electricity as I touch my MacBook Pro. It?s cold so I get shocked a lot lately. Is the MacBook Pros internal circuits safe from static shock? Is the outer shell protecting the CPU?
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Jan 13, 2010
So I'm at a client tooling around with my late 2008 Aluminum MacBook. Carpet. Cold, dry weather. Are you getting scared yet? Go to pick it up off a table and zt! Shocked the hell outa myself and apparently my MacBook. I grabbed it on the right hand side and the static charge must have discharged through the slot loading cd rom drive. Now it won't charge. Battery and Mag Safe brick tested fine at the Apple store. They're going to swap out the Mag Safe port for $110 first and then the flat rate repair for around $380 if needed. Note to all Aluminum MacBook/Pro owners. Ground yourself, or plug in the grounded PSU brick.
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Jun 5, 2010
17" i7 500GB 7200rpm MBP machine a few days ago... it's great.
However, my internal mic is having some major problems. The sound quality from it is just awful.
It sounds like it is barely picking up my voice and it is just getting static and other strange sounds.?
Do you think I should contact Apple?
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Jun 23, 2014
Last week my macbook froze and when I force restart the screen started up like the picture attached, It started normally one time but then froze and it's been like this for about five days, what could be the cause of this? Could it be a virus/software or is it a hardware issue? All my systems and stuff ar up to date as well.
Also, another issue I've been having with my iphone I couldn't sync any music to the device and I couldn't delete any of the songs from my phone via my mac could that have something to do with it?
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Aug 31, 2014
I've had a late 2010 Macbook Air for over 3 years (February 2011). About a week or two ago I started hearing a strange popping noise every now and then while I was using headphones. I thought it was a problem with the headphones but then discovered the same thing when I used different external speakers. Almost simultaneously the internal speakers started periodically having no sound at all, even though it wasn't on mute. This was previously fixed by restarting the computer, but now the problem is permanent. The popping noise when using headphones has also rapidly worsened, and now crackles constantly and sometimes there is even very loud white noise. This occurs with any program on my computer - web browsers, spotify, itunes etc. I'm using Mavericks but the problem started some time after I installed it. After doing some googling to try to fix it I've tried:
- Turning it off and on again
- Installing AntiPop
- PRAM reset
- SMC reset
- Disabling and reinstalling Adobe on google chrome
- Resetting the sound card with terminal
Info:
MacBook Air, OS X Mavericks (10.9.4)
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Sep 26, 2007
Just got my 15 LED SR Macbook Pro. When I plug my bose speakers in at my desk and listen to itunes, I am getting a static pop sound. Should I take it back or is it fixable? By the way, LG panel and no yellow 1/3 of screen. Initially thought it was yellow, but I calibrated it, and now it only looks yellow if viewed from the side. Head on, white. One thing I have noticed, when I watch movies on it in the dark with the brightness turned down (cause this thing is a torch), I am getting quick flashes when a screen has high contrast light and dark. I am very sensative to LCD flat panel TVs that use a colorwheel. Like a JVC dilila, I see rainbows! Is that normal for an led flat panel to see "quick white flashes of light"?
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Dec 22, 2008
I just got one of the new aluminum Macbooks and everything works great... except when I plugged in some headphones. Whenever audio of any sort starts I get an almost silent static like noise in the background... be it sound from a Youtube video, Ventrillo, iTunes... anything. After a couple minutes the static goes away. But if any sound occurs the static returns. Most of the time you can't notice it because the audio that is playing is louder. But when its silent you can hear the quiet static like noise. I have some Sony In-Ear Earbuds. I tried plugging in the gross default iPod earbuds and I couldn't hear the static with those but that may of just been because I can't fit the damn things in my ears. I don't know if its my Macbook or the headphones just don't like the Macbook.
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Apr 22, 2009
I have a less than 1 month old White MB. I have become aware of an electronic noise emanating from below the upper left portion of the keyboard, under the q,w,e keys. The noise can be best described as a mechanical mosquito; it is a constant high-pitched buzz that starts once the computer has fully booted up, and doesn't stop until it has been shut down. Although it is quiet, if you get your head anywhere near the keyboard it is readily apparent and obnoxious. It does NOT appear to be fan related, as I can hear those going as well. I have listened to other Mac laptops with equal scrutiny, and this noise is not present.
A simple Google or Apple forum search indicates that people have been noticing this problem for years. Indeed Apple appears to have acknowledged it recently with MB Pros: (URL) I believe it indicates a faulty logic board.
- Have others noticed this with their MBs or MBPs?
- Does anyone know the true source?
- Most importantly can anyone give me some tips with how to deal with Apple on this?
They have suggested I go talk to the store I bought it from. Those guys claim not to hear it (a common theme from what I have read). However, this is highly dependent on the level of ambient noise and hearing ability of the individual. I already had to return one MB that was DOA, and now I have this one. Given the expense of this purchase and the age of the machine I feel that I am entitled to a new one that does not display these issues. How can I effectively communicate this to Apple or my retailer, neither of which will likely want to comply?
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May 16, 2009
I need to purchase some of the orange anti-static tape that Apple uses to cover the connections on logic boards. I recently fixed a MBP (2.4GHz SR 15") and need to find some tape for the board. I know it isn't a completely crucial component, however, I would like to make my computer look as if it were new. If anyone knows where to buy this tape, the exact tape, not another version, please post a reply or email me. Thank you.
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May 29, 2009
Whenever an application uses the internet, such as Opera, Safari or aMSNn the speakers create a static, crackling sound thats incredibly annoying. The only way to get rid of it is to shut down the app that makes it (usually aMSN or Safari) but it may start again soon. It must be an issue wtih the speakers as it doesn't have any effect on headphones.
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Jul 7, 2009
So thanks to the info on this forum, I think I'm going to take the plunge with a new internal HD. My question: what do you use for a static free surface when you actually open the thing up and do the upgrade? I'd hate to zap my machine in the process of improving it. I've upgraded the RAM with no problem just on a table top and I've also upgraded the hell out of an old G5, but this is the first time I'm really going inside the notebook.
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