Two MagSafe adapters died

A couple weeks ago, in the middle of using my MBP, I suddenly discovered I was on battery. Investigation showed that the MagSafe was still connected, but the LED on the plug was out. I tried several different outlets, no luck. Pulled out my other adapter, it worked fine. Today, same thing happened with the second one. Neither works now. I had been using them with the same outlet for over a year with no problems. Anyone know what might be causing this?
3-4 years ago, I had almost exactly the same problem with my PowerBook G4... it also went through two adapters in under a month, suddenly and unexpectedly. Same room, same circuit, different outlet.
Weird thing is, in the same room & same circuit, we've got a large plasma TV, Blu-Ray player, cable box, stereo & iPod dock, and none of those have exhibited problems. Even stranger, my wife's Windows laptop is usually plugged in to the same power strip as my MBP and hasn't had problems.
The most the Genius at the Apple Store was able to tell me was to try using the three-prong extension cord with the adapter instead of the two-prong attachment, since that ensures a good ground. I'm doing that now with my new adapter, but I'm concerned it will happen again.

It seems unusual / an odd co-incidence that two adapters would fail in the same way but it's possible there's been a surge or dip that's affected them but not the other hardware. Possibly just two dodgy adapters I guess ...
I've only had one MagSafe fail and that went off with a loud bang and puff of acrid smoke one morning (only a few weeks old and replaced right away by the store I bought it from)

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MacBook Pro power adapters dying, keys frying, mysterious heat problem

I've got a very frustrating and mysterious major situation going on with my MBPro. I'm living in Peru in the jungle. I've got a basic electric hookup that's caused no problems for the few electrical devices I've got: small dorm-size fridge, a lightbulb, speaker system, iPhone, iPod, and, until recently a MacBook I had borrowed temporarily from a friend here. I recently visited the states and returned with my MacBook Pro which I need for work down here. Thusly my troubles began.
I noticed pretty quickly the power adapter got super hot, could easily fry an egg on it sometimes. One night I unplugged the Magsafe adapter from the MBP for safekeeping, slept, and in the a.m., the adapter (unplugged from the Mac but still plugged into the wall outlet) was terribly hot. Does this make any sense? It gets stranger & worse...
I used the Mac later that day and within a couple hours two of the keyboard keys stopped working for good (I was later able to remap these keys using a 3rd party program). The next day the Magsafe adapter stopped working. Certainly heat had something to do with it, despite the fact that MagSafes have built-in safeguards whereby they (should) shut down temporarily if overheated. But this sucker was dead.
A friend from the states visited me 3 weeks later and brought two more adapters ordered from Amazon.com, each a different generic brand that had good customer reviews.
The first, which looks just like a MagSafe, worked fine but died in a week. Again, it would get superhot not even plugged into the MBP (like the other one). I should note the MBP also was always hot to super hot. Also the large plastic square power hub of the adapter, even after it died, would get hot if plugged in, it just wouldn't power the Mac.
The other (3rd) adapter worked for awhile, and its rectangular power bar hub would only get a little hot. But the Mac would still get insanely hot, as did the very top of the adapter plug - the part with the teeth that go into the MBP. Within 2 weeks, the adapter wouldn't work unless I applied pressure on it against the Mac. Then it stopped working even with pressure applied.
Here's where it gets even stranger:
What I noticed was that the two outermost of the five teeth on the plug had been somehow pushed further in, such that they couldn't make contact with the MBP (I guess the pressure I was manually applying helped this for awhile until the teeth sank even much further in). How and why in the world did this happen?
Desperate, I brought the two adapters to an electrician, and had him combine the good teeth end piece from the previous generic Magsafe with the adapter whose teeth caved in. Viola, it worked...but just for three days. Amazingly the two outer teeth of the new hybrid plug ALSO retreated and couldn't make contact. Furthermore, I noticed some dried plastic juice gunk around them and concluded that the heat of the connection to the Mac was somehow mysteriously melting the glue around these teeth and also causing them to push further into the adapter more. I know: sounds almost impossible. But this is what happened, TWICE.
Obviously there is an overall problem here, one which concerns heat, among whatever else. It's hot here in the jungle. While my other appliances have had no problem, I've certainly noticed the fridge and speaker subwoofer system run hot. But the electricity reading is normal, and I have a current regulator stabilizing the electrical flow. And the previous MacBook (not Pro) had no problems. And yes the fans on the MBP work. And in general the electricity here works fine to run people's electronics, including some very large freezer units and plasma TVs.
I'm at a loss as to what to do and to how to identify the problem beyond "heat". If I don't get the MBP working normally I can, in effect, no longer be here as it's essential to my work. Therefore any help would be most awesome and greatly appreciated. Thanks.

Oglethorpe,
I do have a current regulator or "stabilazador" here. The LED changes often from green (normal) to yellow (low). I don't understand why it indicates these changes in voltage if it's its job to stabilize them anyway. But anyway I bought it on suggestion amidst this crisis but it hasn't helped none, and even it gets hot sometimes, even when nothings plugged into it.
These generic adapters I bought both had a plethora of rather detailed good reviews (and a few bad) that seemed beyond the ambitions of counterfeiters.
In any case, I'm pretty sure the adopters are not at issue within my problem here. I'm starting to really think the electrical hookup is at fault, but thanks much for your input.

MacBook Pro power adapters dying, keys frying, strange heat problem

I've got a very frustrating and mysterious major situation going on with my MBPro. I'm living in Peru in the jungle. I've got a basic electric hookup that's caused no problems for the few electrical devices I've got: small dorm-size fridge, a lightbulb, speaker system, iPhone, iPod, and, until recently a MacBook I had borrowed temporarily from a friend here. I recently visited the states and returned with my MacBook Pro which I need for work down here. Thusly my troubles began.
I noticed pretty quickly the power adapter got super hot, could easily fry an egg on it sometimes. One night I unplugged the Magsafe adapter from the MBP for safekeeping, slept, and in the a.m., the adapter (unplugged from the Mac but still plugged into the wall outlet) was terribly hot. Does this make any sense? It gets stranger & worse...
I used the Mac later that day and within a couple hours two of the keyboard keys stopped working for good (I was later able to remap these keys using a 3rd party program). The next day the Magsafe adapter stopped working. Certainly heat had something to do with it, despite the fact that MagSafes have built-in safeguards whereby they (should) shut down temporarily if overheated. But this sucker was dead.
A friend from the states visited me 3 weeks later and brought two more adapters ordered from Amazon.com, each a different generic brand that had good customer reviews.
The first, which looks just like a MagSafe, worked fine but died in a week. Again, it would get superhot not even plugged into the MBP (like the other one). I should note the MBP also was always hot to super hot. Also the large plastic square power hub of the adapter, even after it died, would get hot if plugged in, it just wouldn't power the Mac.
The other (3rd) adapter worked for awhile, and its rectangular power bar hub would only get a little hot. But the Mac would still get insanely hot, as did the very top of the adapter plug - the part with the teeth that go into the MBP. Within 2 weeks, the adapter wouldn't work unless I applied pressure on it against the Mac. Then it stopped working even with pressure applied.
Here's where it gets even stranger:
What I noticed was that the two outermost of the five teeth on the plug had been somehow pushed further in, such that they couldn't make contact with the MBP (I guess the pressure I was manually applying helped this for awhile until the teeth sank even much further in). How and why in the world did this happen?
Desperate, I brought the two adapters to an electrician, and had him combine the good teeth end piece from the previous generic Magsafe with the adapter whose teeth caved in. Viola, it worked...but just for three days. Amazingly the two outer teeth of the new hybrid plug ALSO retreated and couldn't make contact. Furthermore, I noticed some dried plastic juice gunk around them and concluded that the heat of the connection to the Mac was somehow mysteriously melting the glue around these teeth and also causing them to push further into the adapter more. I know: sounds almost impossible. But this is what happened, TWICE.
Obviously there is an overall problem here, one which concerns heat, among whatever else. It's hot here in the jungle. While my other appliances have had no problem, I've certainly noticed the fridge and speaker subwoofer system run hot. But the electricity reading is normal, and I have a current regulator stabilizing the electrical flow. And the previous MacBook (not Pro) had no problems. And yes the fans on the MBP work. And in general the electricity here works fine to run people's electronics, including some very large freezer units and plasma TVs.
I'm at a loss as to what to do and to how to identify the problem beyond "heat". If I don't get the MBP working normally I can, in effect, no longer be here as it's essential to my work. Therefore any help would be most awesome and greatly appreciated. Thanks.

1) Make sure you have the right adapter type for your model of MacBook. There are 45w, 60w, and 85w adapters. Pro's either take the 60 or 85 watt.
2) Most 3rd party adapters I have tried are junk, junk, junk. They quit working, have melted, have fried my macbook, and even caught on fire.
Now what it sounds like to me is maybe your are having an issue with a loose magsafe board. This was a big problem with the white macbooks( I realize that is not what yours is). The MagSafe board (part where your charger plugs into the computer) gets pushed in ever so slightly and if the connection between your adapter and the board is not precise it can cause issues of anything from overcharging and shutting off the adapter, overheating, damaging your Magsafe board, and making the adapter useless. The best way to tell if it is this is if you have to wiggle your adapter to get it to charge correctly. (Note I have never seen the happen with the T-shaped MagSafe 1.0 but I wouldn't doubt it, but I know it happens with the MagSafe 2.0 L shaped adapters.)

Multiple magsafe adapters not working with multiple mbps

I have two retina macbook pro 13" laptops, the more recent one being a late 2013 model. Neither one of them seems to respond to magsafe adapters consistently anymore (i've used four magsafe2 adapters and both machines). light doesn't come on or sometimes comes on. currently, i can sometimes get power but in the "not charging" state. But if i pull the adapter and reseat it doesn't always even do that. i've reset the SMC and also reset the PRAM. Neither one has changed this. Any thoughts?

I'm having a similar issue, but cannot see anything to do with airplay in the SysPref > Sound menu. My mac is too old to run Yosemite, so looking to find another way to get this fixed. Any ideas?

Dynamic Configuration for two file adapters communication channels

Hello Experts!!!!!!
     In one of the interface in my landscape, I am using two file adapters for creating two files with different names and at two different destination on F.T.P.
However the receiver service for both the communication channel are same.
In message mapping I am using multi mapping to create two files out a single message.
Now i have a requirement of changing file path and file name using dynamic configuration for both the comm channel.
When i doing dynamic coniguration for both the comm. channel. My interface is creating two files but with same name and on same destination which is set for second communication channel through dynamic configuration.
Here, I guess the second dynamic configuration is over writing the first dynamic configuration and hence creating two files with same name and at same destination.
Please suggest, if separate dynamic configuration for separate communication channel of same receiver service can be done?
Thanks & Regards,
Amol

Thanks for your prompt responses!!!!!
    Is there any way, By which in dynamic configuration I can find out the communication channel name and then change its parameter.
I mean if iam using say comm. channel A and B.
Then in dynamic configuration for A, I will first take communication channel A by calling it and then change its path/file name.
and then do samething for comm. channel B in its dynamic conf.
Regards,
Amol

Two Bluetooth Adapters on Mac Mini

Is it possible to use two bluetooth adapters with the Mac Mini?
If not, is it possible to disable the internal adapter and use an external USB bluetooth adapter?
If you're curious, here is what I'm trying to set up.
upstairs: Mac Mini with keyboard, mouse, monitor, a dual SATA dock and one end of a USB over cat 5e system
cables running downstairs: VGA, speaker wire, cat 5e
downstairs: VGA projector, amp & speakers, USB dock, USB bluetooth adapter, bluetooth controls (probably the ProMini wireless keyboard with trackpad)

Kris Brown wrote:
Is it possible to use two bluetooth adapters with the Mac Mini?
It is possible to use multiple Bluetooth adapters on a single Mac. I have a d-Link USB Bluetooth adapter on my Mini.
If not, is it possible to disable the internal adapter and use an external USB bluetooth adapter?
I don't know if it's possible to disable the internal Bluetooth, but why bother? Bluetooth has a range of 33ft, so anything downstairs is likely out of range of the Mini's internal Bluetooth, and the materials in the building is further reducing the signal strength of Bluetooth. 33ft is an optimistic number and I've found that I often have trouble going to the next room, depending on the device.
If you're curious, here is what I'm trying to set up.
upstairs: Mac Mini with keyboard, mouse, monitor, a dual SATA dock and one end of a USB over cat 5e system cables running downstairs: VGA, speaker wire, cat 5e downstairs: VGA projector, amp & speakers, USB dock, USB bluetooth adapter, bluetooth controls (probably the ProMini wireless keyboard with trackpad)
Otherwise, since you already have USB heading downstairs, then a USB keyboard and mouse would obviously work. Or a wireless keyboard/mouse, but non-Bluetooth. (i.e.: a wireless keyboard/mouse that comes with it's own USB dongle.)

Using two bluetooth adapters (not devices) together in OSX?

I was wondering if its possible to allow OSX to use two bluetooth adapters at the same time? In windows, when you plug in two adapters, it places two bluetooth icons in the system tray. It seems when I try this with OSX, the main adapter is used, and the secondary adapter gets listed as a keyboard im guessing, as a window pops up saying it doesnt recognise my keyboard (even though i own no bluetooth keyboards), and it shows up with an improper mac address with the main bluetooth adapter, but not as its own. Is there any way to make OSX notice the second adapter?
EDIT: I guess I should specify my reasoning for this. on windows, because of the way bluetooth works, ps3 controllers need to isolate the bluetooth adapter, rendering a bluetooth adapter solely for the ps3 controller. obviously this works in osx without isolation, but I noticed that since the ps3 controller pairs by mac address, using the same adapter results in only having to pair the controller to osx and windows once, rather than having to pair each time i switched between systems. Also, I would still like to use the second adapter as its own for pairing other devices.
Message was edited by: unvaluablespace

Hi,
Thank for posting in Microsoft TechNet Forum.
Based on my research, two Bluetooth adaptors can work at same time.
In your case, the major problem is the dongle can’t start. I suggest you could test if the new Bluetooth adapter could work in another computer?
Meanwhile, the Code 10 error pertains mainly to hardware and device driver issues or to compatibility issues between hardware drivers and additional software
that is installed in Windows. Therefore, we recommend that you troubleshoot these issues by focusing on device drivers, on device configuration issues, and on hardware compatibility issues.
I recommend you could refer to:
Description of Code 10-related errors that Device Manager generates in Windows-based computers
Hope it helps.
Regards,
Alex Zhao
TechNet
Subscriber Support in forum. If you have any feedback on our support, please contact
[email protected]
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Two ethernet adapters = troubleshooting

We are developning an application in LabVIEW 6.02 which controls a Logic Analyzer (HP1670D) via telnet and ftp. The medium between the HP and our PC(NT-4) is a TP- or a coaxial-cable.
In our PC we have two ethernet adapters, one that is talking with the LAN and one that is suppose to talk with the HP throw our LabView-application. However we are not able to use the secondary ethernet-adapter with LabView. It seams like that LabView is not able to handle two ethernet-adapters, some kind of conflict or delay is raised during the communication.
Other applications (i.e ftp-programs) handle the communication with the HP without any problems.
The LabView-application works great against the HP if we only use one ethern
et-adapter.
Do you know how to solve or where to find any solutions to this issue ?
Best regards Joachim Osbeck and Tore Svensson
Ericsson Mircowave Systems Sweden/Mölndal

I'm not sure if I can help, but I can tell you that I use 2 NICs with LabVIEW all of the time and have no problems. We configure the card on the LAN to get its IP from a DHCP server and we specify the IP of the second NIC. We generally use something like 192.168.xxx.xxx and make sure that the subnet (third set of numbers) is different from our LAN. The products that I test have and ethernet connection and I ping and telnet to them. Our configuration is Win NT 4 and LabVIEW 6 and LabVIEW 5.

MacBook 13" White Model: All MagSafe Adapters Not Working

Greetings!
I've recenlty received a second-hand MacBook 13" White laptop. It was a gift from a friend and said that he wouldn't be needing it anymore.
The problem that came with the laptop was that it had no HDD since it was already taken out due to damage about a year ago. So after receiving the MacBook, I quickly went to get it fixed and had the HDD replaced, or rather put a new one in since it was already empty. Afterwhich, I installed Mac OS 10.6 Snow Leopard and I was good to go. This happened in less than a week ago.
But now, just a few hours before I made this post, a new problem came into view. Now my MacBook 13" White laptop won't charge at all. As in the battery is working, but when I used both MagSafe adapters that I have, none of them would light up and the particular laptop wouldn't charge. I double checked three (3) times, used both adapters, but nothing. I even tried restarting, removing the battery, putting it back in, but NOTHING.
I'm sure the issue isn't with the MagSafe adapters nor the outlets because both adapters work perfectly with the MacBook Pro 17" 2011 and MacBook Black 13" 2008 laptops that I have.
Could the issue be due to it not being used for a long time?
Could the issue have started when I had it fixed? If so, why the lag in time-frame before the problem occured?
Any good and related suggestions would really be of great help. Thank you and more power to all of you!

HI,
Boot from your install disk.
Insert the installer disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu (Panther and earlier) or Utilities menu (Tiger and later) and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
*(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)*
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
Try resetting the SMC. http://support.apple.com/kb/HT1411
Troubleshooting Startup and Login Items
Carolyn
Message was edited by: Carolyn Samit

Two network adapters and Real Application Cluster

Hello
I have got one problem. I have got 2 computers and each of them has got only 1 network adapter. Is it possible to make Cluster having only 1 network adapter on each node?
Do 2 adapters are needed (they must be)? I know that I can add two different IP addresses to one network adapter. Another question is: is it possible to make two networks (private and public in Oracle 10g )on one adapter to create cluster? If it is ,please expalin how to do it or give a link,please . I will be happy then :)
user502165

You need two network adapter which is separate from creating two VIPs for the same adapter

Two AC adapters broken in one week (S510P)

After one year, suddenly my ac adapter stopped working... the pc stopped to get the charge from it, the power led on the pc was off. The adapter emitted a constant, rythmic buzz, which wasnt normal.
So i bought a new one, and the pc startes working again.
After exacly one week the new charger is not excepted again.
But this time it does not emit strange noises, just a very low constant buzzing but i guess that could be normal.
What can i do?
I openes my pc to its bones, and removed the DC IN jack, because im starting to think he is the cause, but i ask here before buying a new jack...
I mean, if it was the problem i would expect it or to work sporadically and inconsitwntly, or to stop working completly... this all "week extra" i gained changing the charger makes no sense, i dont know... please help

Heatmiser: This is something of a long shot, but then any other possibility that's occurred to you or occurs to me is at least as long a shot, so humor me and see whether this gets you anywhere.
Apple AC adapters shut down completely when the AC power supply they're connected to is "dirty." The ringlight goes off and no power is delivered to the computer, for any purpose. When that happens, the remedy is to unplug the adapter from the wall outlet for a minute or so, then plug it back in again. This resets the adapter and it usually starts working normally again, until the next time the AC supply gets dirty and the adapter shuts down again. You can read about this in this article (see #2 in the article).
If the ringlight went out on either of your adapters for this reason, and you then connected that adapter to the other laptop without first unplugging it from the wall for a minute, the adapter was still shut down when you plugged it into the second computer, and it obviously wouldn't have behaved any differently with that computer until you unplugged it and plugged it back in again. It seems improbable that you carried out all your tests in just such a way as to insure, purely by chance that both adapters had been shut down by dirty line power and not reactivated before testing with the other computer. But I guess it's possible, and the other explanations that come to mind (both adapters or both computers failing simultaneously, in the same way) are all about equally improbable.

HT5234 Is there something additional I should know other than what I already figure here re: What is the difference and/or benefit between the two power adapters (one with AC cord, one without) that come with the MacBook Air 11"? TY

As per question, TY.

One is longer and one is shorter. Depending on your location one may have a grounding port whereas the other doesn't. Otherwise no real difference.

TWO NETWORK ADAPTERS

O.K. here is what I have done. There are 2 questions.
First, tell me if it is serviceable. My desktop PC only has an ethernet PCI b/g/n card in it. I also wanted to be able to get 5ghz on my dual band EA6500 router. I bought an EW-7822UAC 1200AC adapter (based on PC Mag's review of it).
1. I have it connected via a UBS 3.0 cable to my PC's UBS 3.0 socket.
2. I assigned my 5GHZ band of the router a different name from the 2.4ghz side.
3. I set the mode of the EW-7822 to a-mode only (I did this in hope that only this adapter would pick up the 5ghz and my ethernet adapter would pick up all the 2.4ghz. .
Second, I have Miraki W-FI Stumbler on my cell phone. I have an EA4500 setup as a bridge. Miraki shows both the 2.4ghz routers and their channels (1 and 11), but the 5ghz SSID only shows a channel 0. Does Miraki show 5ghz channels. I have them set up as channel 161 on the main router and 153 on the bridge. It does shows the signal strength of the 2 routers.
Solved!
Go to Solution.

InSSIDer was showing on my 5GHz band a max Mbps of 450 on the EA4500 bridge router and only 54Mbps on my primary router EA6500. After 4 hours of chatting with 3 different techs at Linksys and being disconnected after a firmware update (which I had already an hour before) and hung up on once because the case ID had not been entered in the system yet, the last tech said to change the mode to n-only. I had tried to do this in Device Manager before, but it did not have that option. I got off the chat line and then discovered it needs to be done in the Smart WIFI router settings. Both routers are now showing a max rate of 450, but I don't know it this is the optimum setup or not. Why would it not work in the a/n/ac mode?

Power oscillates between 99% and 100% every two seconds;

The MagSafe adapator flashes from green to orange and back 30 time a minute. The menubar percentages changes in sync from 99% to 100% and back. This has been going on for a couple of weeks. No other unusual behavior has been noted.
I have done an SMC reset and calibrated the battery (charge completely for two hours then discharge completely and allow to rest for over five hours then charge completely again). Flashing behavior is still there with both of my two MagSafe adapters.
What's going on?

I had some kind of weird issue going on with charging and computers getting hot and turning off, etc., and I did the re-sync thing with the battery...it seemed to fix it and I haven't had an issue yet. I don't know if you said you already tried this or not, but this was handy:
1. Calibrating the battery: http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh2339.html
2. Re-setting the SMC (only do if restarting doesn't help--read the article) http://support.apple.com/kb/HT1411

Do Apple MagSafe 2 power adapters break easily?

I was about to order a Magsafe 2 power adapter for my rMBP so I could keep one at home and one at work. But there are hundreds of reviews at store.apple.com saying they break easily, the wires fray, etc. but I've seen very few complaints about them on this or other user forums, and none of the five I've owned for various MacBooks since 2010 have ever broke.
Are Macbook power adapters really so unreliable and prone to breaking? Or is it possible that the reviews at Store.apple.com are so dominated by trolls as to be unreliable?

People don't often write reviews about things as mundane as power adapters unless they have something to complain about. I have one that's only recently started to fray. It's four years old. I have many others as old, or older, and they're fine. Treat them carefully and they ought to last the life of your Mac.
Troubleshooting MagSafe adapters
Using and maintaining your Apple MagSafe Adapter
Reducing cable strain on your MagSafe power adapter

Two MagSafe adapters died

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