HP/Compaq :: HP Dv6-1235cl AC Power (brick) Adapter Buzzing Noises- Normal Or Faulty
Aug 10, 2009
I have been looking online and getting mixed results regarding buzzing noises from ac power adapters. My old hp dv6000 laptop powerbrick did not make buzzing noises as loud as my new dv6-1235cl from costco.
I noticed that a lot of people now hear buzzing noises from their ac adapter. Then I came onto this website.
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Is this a bunch of bs or are they for real?
I can hear the buzzing noise when I put my ac adapter on the table, but almost non existent when its on the ground. I want to know if this will be a fire safety hazard in the future? I dont want my house burning down even when this thing is plugged in.
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Jan 15, 2014
2 days ago I was given a new work laptop - the E7440 (its brand new).
Straight away I noticed some loud buzzing noises which a fellow colleague said was the fan. It's quite annoying. I soon noticed however when my laptop was idle these noises would stop, and when I clicked they would start again. Whenever I ask the Laptop to do anything these noises start up, and considering im active on the machine all day.
There are high pitched, buzzing noises. And as mentioned are aligned to when the laptop is processing something. They also make sounds when I scroll the mouse for example.
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Nov 22, 2009
Just got one of these, and the power brick is well erm.. a brick!
I need / want to get a third party one that is hopefully smaller, so does anyone know of one suitable? or, if not.. know of what i should be looking at to try and find one?
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Feb 20, 2010
Is it normal for the power brick to get hot? When I say hot I mean, it's so hot I'm afraid to leave it plugged in and go anywhere. I just got my system the other day but really haven't messed with it so far (except for making sure everything was up to par.) Today I started getting into everything, clean install, etc and I noticed like after 10 minutes of it being plugged in (120 watt brick) the brick was so hot it felt like my heating pad on high. I've never experienced this before, is this normal?
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Feb 4, 2010
my xps m1330's power adapter recently became faulty, so I ordered another one from eBay.
It just arrived today, but the problem is when the adapter is plugged in to the computer and a power source,
the green LED light flashes. Does anybody know what this means and how I can fix it?
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Dec 28, 2009
i have a studio 1555 i purchased back in july that's been working swimmingly except for one problem. the ac adapter has always made these clicking noises but i have managed to ignore it because
i don't want to deal with the problem. now however, the blue ring light around the plug is flickering on and off as well as the clicking noises still coming from the ac adapter brick.
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Oct 15, 2009
I was wondering why, on occasion, my AC adapter has a little buzzing noise (sporadic) coming from it?
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Mar 22, 2010
I would like to bring this to attention for the community, as it recently happened to my SXPS1647. This happens with the 90w brick and only on certain firmwares. The proc in my system is the core i7 620m.
One night just before bed i closed the lid on my laptop to put it to sleep and then turned off the TV, but then i heard a strange high pitched sound coming from the laptop area. I went back and investigated and there was a strange sound coming from the power brick. The best way I can describe it is the sound of electricity moving, a wave like sound that gets higher and lower pitched. Very concerning, so I call Dell and tell them the problem they send a new motherboard and ac adapter.
The dell tech comes to my house and says that's the strangest thing he has ever seen/heard. So he tries the new ac adapter and same sound so he replaces the mobo. With the new mobo the sound is not present, so im happy. But the computer was throttling really bad so i decided to check the bios with CPUZ and it was A01. I decide to update the bios to get rid of the throttling issues, A05 update went nicely but as soon as I restart the system the magic high pitch sound has returned. The previous mobo had the A04 bios when it was making the sound.
I recently read the whole 90w vs 130w ac adapter and wonder if that has anything to do with this issue?
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Sep 17, 2009
If your battery is mostly drained and you plug the thing in, within minutes the brick gets so hot that I'm afraid to let it sit on any surface, much less touch it.
I thought it might just be a defective piece so I got a replacement power adapter and it gets just as hot as the other one. Has anyone else noticed this?
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Apr 7, 2010
So I'm about to get my XPS 1647 today. I don't plan on gaming too much, so I don't know if I'll hit these throttling issues, but..
How do I know if my system is throttling or if its just running as fast as it can? Does the 90W power brick heat up? Is there some system monitor I can check?
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Jan 27, 2008
Well many people seem to suffer from the dreaded brick Failure, I have had a few go crap, and many of those failures usually were traced back to a broken wire in the DC cable assemly. If you wiggle the cable in the area if the strain relief you can usually hear the crackling sound.
I usually find it breaks in the strain relief - See attached Picture.
Fixing this can be easily done with a few items, there are a few little challanges as well.
1. Soldering Iron & Solder
2. Solder Sucker (removing tool) or Solder Wick
3. Wire Cutters
4. pliers, Small Screw drivers
5. Volt Meter (DVM)
6. Electrical tape
If you see Picture 1 of the plug, I just wanted to point out the typical barrel type connector used in the Dell laptops 6000/6400/9400/M1710 Etc.
There are 3 wires to connect here, The Out side Barrel is the Negative supply, The inside Barrel is Postive, and the inside Tip is a Voltage Sense.
I have added some new Pictures to show the inside of the PA-13 brick.
You can see the three connectoins on the bottom side of the board. The spacing is tight, and you can easily solder across two pads, checking for solder bridges is important
Please note, the spaces are small, and you require good eyes, a magnifying glass would help, and some soldering skills.
After your soldered the new connections careful inspection to check for any solder bridges is required.....
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Sep 13, 2009
Had the Studio since Wednesday and its great!
However, the power brick has started to make noises? A series of about 10 clicks in quick sucession repeated twice in a couple of seconds.
It will then go quiet for a while then do it again?
Its also pretty hot, too hot to touch for a while and its hot quickly - in about 10mins from cold.
Should I get a replacement or is this normal?
How do I go about getting it replacd? Sounds like its shorting or something?
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Jun 30, 2009
The power supply they sent is not only the wrong wattage rating, it also won't even FIT into my laptop's power input.
I emailed them, and they won't even replace the thing.
"I reviewed your order details and I see that 65 Watt power supply is listed on your order details therefore we are unable to send you the 90 Watt power supply as per
Dell's Exchange guidelines, an exchange could be done for like to like items only."
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Jan 27, 2010
my power brick making a clicking noise and the LED light sort of flickering in conjunction with the noise. Does anyone else have this issue? I'm not sure it's a problem, but I'm worried that it might be.
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Dec 8, 2012
I have a Dell Studio 1558 and I have some concern about my power brick. The brick itself makes a light sizzling, buzzing or light crunchy noise which isn't continuous, but is causing me concern. The computer itself, also makes a similar noise when doing stuff like scrolling down a page in an internet browser. Every time I press the down arrow and it loads new images, it makes a brief sizzling noise.
When my computer was brand new I brought this up with tech-support and they gave me a new power brick but the noise never went away. I took a day off work to stay at home and waited for a tech to come to my house so I haven't complained about it since then. It seems to be an intermittent issue, some days its worse than others, and I've had this computer for about 2-3 years now.
Have there been any recalls on the power supplies for my computer? Aside from making a noise, I haven't noticed any decline in my computers performance, I'm just worried about it shocking me or frying some of the components inside the computer!
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Apr 25, 2010
so just what the title says,
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May 18, 2010
I've been thinking about buying a new power adapter to replace el-giganto that came with it. I understand that there is at least one Kensington power adapter that works (model 33197). That one, IMO is a bit too large. Curiously, that adapter is not directly visible on Kensington's website for Laptop Power Adapters, but is searchable (by part number).
So my question is whether there are any people out there that have used, for example, the model 38066 or the model 38067 successfully? Those two models are smaller (physically) than the 33197, but they don't actually list the Wattage they provide (they're listed by Voltage and Amperage - which kind of makes Wattage, but not exactly). It seems as though they might be 90W adapters (as the product pages make continual reference to their power efficiency over "other 90W adapters" which leads me to believe that they're probably around 90W adapters.
Or whether the model 38031 or 38030 will fit? These adapters are a bit larger, but appear to offer more input amperage. Though they also say "Up to 90W output" so ...
From what I understand, the HP Envy 15 will throttle the machine with less than 120W of input wattage.
Also, the 33197 is apparently an "old model".
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Mar 29, 2010
I am in need of a new AC adapter for my HP Envy 15. Can any of you veteran owners recommend me a reliable and quality one (and hopefully under $100), preferably with a decently long cord?
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Mar 6, 2009
I have a problem with my XPS 1730 laptop, this started probably 4 months ago. (second laptop that has screwed up after the warranty ended). I'm hopeless at explaining stuff, so i'll do it in point forms.
* First sign of trouble started when i booted up my comp one day and it beeped before loading windows and paused saying something like
"AC power adaptor not recognised, press F1 to continue F2 to enter setup, system will run slower"
If i continued then it did run really slow (even though power option was set on high performance) and the battery didnt charge.
* Every time i turned on my computer i had to keep putting the power cable in and out, adjusting it as i did so, until the battery light on the top right (near the lcd screen) flashed. If that didnt flash and i turned it on then the unknown power adaptor message would come up.
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Aug 19, 2009
I received my 1555 today and am absolutely over the moon. Trying to installing Windows 7 RC on at the moment and apart from some small hiccups - due to user erroor everything is going smoothly. BUT
From the moment I plugged in the a/c power adaptor I noticed that every so often it produces a buzzing noise? It happens every 20sec to 1min or so and last between 1sec to 10sec each time. Does anyone's do that? Not only that, it gets pretty hot as well, when I put my hand on it(on the label side) it feels really hot, in fact so hot that I have to take my hand off unless I 'made' myself stay there. Is this normal?
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Feb 22, 2009
I am trying to find a power adapter for my HP dock XB3000, however, everywhere I look, the power adapter seem to be the same. My laptop uses the newer smart pin connection, however the dock uses a smaller plug. When I look on ebay, I see they list practically all hp laptops to be compatable with their power adapters. I was just wondering if the power adapters are practically universal, other than the difference between the 65W and the 90W adapters.
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Feb 25, 2010
So while I was getting a blu-ray burner and HD upgrade for my DV5t, I got a promo advert in the mail from HP and it mentioned their Slim Travel Power Adapter (with USB charging port). I travel about 4000 miles by plane every 4-6 weeks, and I carry my Dv5t with me in a shoulder bag. After putting my laptop in a neoprene sleeve before putting it in the bag next to my paper file, there is not much room left in the bag for the power supply, wireless mouse, and misc cables, much less a bottle a water for the 4-hour plane trips.
On top of that, the charging port on my phone doesn't work anymore (I know, I need to change it, but I'm waiting for summer when I'm out of contract and can switch carriers and phones), but it still charges via the USB sync cable.
So the slim travel charger was looking pretty good - less space used in a very tight bag, and a way to charge my phone when my laptop is off. So I ordered it excitedly.
And I was quite let down.
The first issue I've had with it, is that although the transformer block it is slimmer in height that the one the that came with my laptop, it's just as long, and wider. At it's tallest, around the AC-in port, where it bulges out, it looks be just under a 1/4-inch in height savings. while being about 3/8th-inch wider and 1/8th-inch shorter (the long axis).
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Feb 22, 2009
I have HP DV5Z-1000 laptop. The other day my AC adapter stopped working and won't charge my laptop. I know it is the adapter because when I have it plugged into the wall, and not even plugged into the laptop, it beeps.
I got my laptop in the US, but I am currently living in a small town in Canada and can't easily get replacement parts. I am not sure if HP will ship the same adapter to Canada.
My question is, can I buy any old adapter or would I need the same one it came with? If I need to buy a third party adapter what one can i get?
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Sep 29, 2009
if this has happened to any notebook user:
for a week now, my ac adapter/power cord has been making crackling noises when i unplug it...at first i thought it was static electricity, then today, I saw smoke coming from it
it won't work for awhile, then it will magically start charging my notebook
it seems really dangerous & i'm afraid it's gonna catch fire or burn me.
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Nov 9, 2009
I have a Dell Inspiron 1520 and my friend has a Latitude D820.
Tonight she accidentally plugged my power adapter into her laptop. A few hours later, she noticed that her laptop indicated that it wasn't plugged in, and that's when we realized that she had accidentally used my adapter instead of hers.
Now my adapter doesn't work at all. We've tried the adapter with both our laptops with different outlets with the same problem, so we know it's the adapter. The green light also doesn't come on when it's plugged in anymore.
Did plugging my adapter into her laptop somehow screw up my adapter, or could this just be a coincidence? Is there any way to fix the adapter or at least figure out what the problem is? And if I have to purchase a new adapter, do the universal ones they sell at retail electronics stores work OK? I would order one from Dell but I'm working on a project now and I don't have time to wait for it to ship.
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Apr 20, 2009
just wondering if hearing a spark like noise is normal from these power supplies? it reminds me of listening to a hard drive tick
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Oct 23, 2013
I have just installed an i7 2670Qm on my T420 today.The machine will crash pretty soon after booting up, with the screen having colorful vertical and horizontal lines before it restarts itself and give the memory error beeping pattern (1 beep-pause-3 beeps-3 beeps-pause-1 beep).So then I took out one RAM from the bottom, and the machine appears to work normally again, more or less.
In the OS (Win7 64), The power manager alerts me that the 65w AC adapter is giving not enough power, so the laptop is running on battery. I thought I just need a 90W AC brick so the laptop will work as it should, so I am arranging a 90w one to come in later. But on a second thought, if the battery cannot start the laptop with 8GB of RAM properly.
Is it the CPU or RAM or Mobo or something else? Where should I look?The machine works fine with the previous CPU i3-2310m and 8GB of RAM.The RAM modules I have are 2 x 4GB Samsung 2Rx8 PC3-12800S-11-11-F3.The BIOS version is updated to the latest 1.46.
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Jan 27, 2013
Our Studio 1749 will retain a solid connection when the power adapter is plugged into the power board along the side of my laptop. I am unsure if the pins residing in the power board are pushed toward each other so as to not retain connection when the adpater in plugged into the laptop.
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Jan 13, 2009
I've got an HP dv9685eo. Recently the fan has started to make strange noises. Kind of like a drilling noise - I'm not sure how to explain it. Kind of like it's hitting something when spinning. I once had a desktop computer which started to make fan noises as well. I resolved that by cleaning the fan. That computer's warranty had expired, however, and I am reluctant to open my laptop because it still has warranty. I need my computer every day and my laptop is my only one, so I don't like the idea about sending it in for repair. Can they see if I open the case and take a look inside it? There aren't any stickers on it (at least not on the outside). Will opening it even void warranty or is it only if I start to remove/add/replace hardware in it?
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Jan 9, 2009
I have a one year old DV9774ca which suddenly overnight started a slight brrrrr sound from the cooling fan. Its definately the fan because if I watch it and the fan stops for a while then the noise coming from it stops.
At first I thought it sucked up something. I can't see anything, so I blew it out with compressed air, through the fan and through the vents, and it never helped.
I can only assume its the bearings in the fan. Theres no wires or anything sticking down.
I had a similar burrring fan noise once on a computer and if i tapped on the top of the cpu cooler fan the noise went away for a while.
My question is if theres bearings actually at all in these tiny little fans? Or what else it could be. I ask this in case anyone has had experience with these noises and have you either pushed/pulled on the fan blades and it stopped?
I have no issues changing the HSF myself as I build computers for myself and family. So its nothng new to me to pull things to pieces. I have been perusing ebay, etc, for a hsf model 434678-001, as I gather thats the correct one. I can't stand HP's prices so I will source it any where else!
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