Intermittent Buzzing with HP Pavilion dv7

Just a couple of months ago I got a new HP Pavilion dv7 laptop with beats audio. For a while it worked fine, but recently I'm having a problem with the sound. Whenever I watch videos, listen to music, play games, anything with sound, I get an intermittent buzz that lasts maybe half a second. The video seems to slow down just for that split second as well.
I don't know if this is relevant, but the sound of the buzz seems to be a little different depending on the sound actually playing. For example if the music if soft and low-pitched (the music itself, not the speaker settings), then the buzz is also. If the music is loud and high-pitched, then so is the buzz. It's as if that split second of audio is repeating like a skipping record.
Usually it happens maybe 1-3 times per hour. It happens more often (like once every few minutes) if I am charging a device like an iPhone from a USB port. However, it doesn't seem to happen when running on battery power, only when using the AC Adapter. I tried a different AC adapter, but it doesn't really help.

Would you please elaborate on the process of "removing HP drivers"? Which drivers? Then do you lose functionality?
I also have had the described problem, intermittent quiet buzzing that goes away when the power cord is unplugged, for a while now, and I have tried everything everyone has posted, except having the motherboard re-soldered, with no success in solving the audio problem. BTW, this would not matter if I weren't a professional musician using the computer for music. But I am willing to trade in my DV7 for another HP computer that doesn't have the problem. Does HP take trade-ins?
Has anyone here had their motherboard re-soldered? Did it work?
Is there any real hope of fixing the problem? I haven't seen one.

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Hello,
I've a problem with a Pavilion dv7 wich is not booting.
When I turn on the PC the F12 key (Wireless) is fix and red and Capslock is blinking.
After search on the forum, I try several things, turn on PC without its battery, turn on without RAM module (2 module with no module, only on,...) but each time I obtain the same F12 red and Capslock Blinking continuously (1 per second).
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Thanks In Advance,
Cyrille

Hi Visruth,
I've clean the laptop with a compressed air bomb, so i don't think it's a overheating problem.
When I take out the hard drive I obtain the same symptoms, F12 LED Orange fix and Caplock LED flashes continuously (every 2 or 3 secondes). I did not find this combination (F12 Red + Caplock Continusly blinking) ?
For the record, this is the laptop of my stepmother and I am sure she did not make BIOS update ...
Anything else to help you to make the good diag ? A tools to boot with ? A hardware test to do ?
Regards
Cyrille

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Hello,
I'm experiencing a bit of trouble with my 2 W S X keys. They only seem to work when they want to and when one stops working, the other stop working too.
The laptop in question is a HP Pavilion dv7 running windows 7 64bit. I can't think of any changes that have occured before the change but was working fine this time last week. Not dropped it or anything.
A note i saw elsewhere said to check if the keys work works in the BIOS. I opened the BIOS and tried the keys in there upon startup. Didn't work. Logged in left it for a bit and then as if by magic it was then working again (enough so to enable me to write this).
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Adam

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So this is how I solved it: I had Microsoft Security Essentials and it was up-to-date. However, it does not find it by itself. Spybot finds something but is unable to fix it - even upon a reboot. I installed Trend free atHome(?) virus scan - it does not find it. I installed AVG full Internet Protection - it does not find it. However, while AVG was running (a few hours) Security Essential found it - just like that! So, it appears that when the malware was adjusting itself to avoid being detected, that it was discovered by MS Security Essentials. I fixed it while AVG was running, and tested my keyboard right away. At first the x worked, then the other keys.
This is malware - not hardware, so please stop telling people to clean or replace their keyboards.

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Due to another issue (not hardware related) I decided to do a clean install of W8 which would also let me clean things up and to re-partition my disk.
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If I need to do a re-install of W8 again and then get stuck into the driver installations I'm good with that, but would like to do it in a manner that will let me resolve these issues in the future without too much hassle.
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Thanks!

Hello AttackofZaq....
Thanks firstly for your reply. I re-installed W8 to start from scratch.
OK, so I thought the AMD driver worked. I had installed it before I posted to the forum but then the problem seemed to have returned. I'll have to play with the settings because just as I type this the fan has started for no reason, same problem as before. Is there any chance Windows Updates in interfering?
Regarding the fingerprint reader - it hasn't helped. In Device Manager I now see Biometric Devices > Validity Sensors (WBF) (PID=0018). Is there some further software I require in order to use the device. I'm going to install SimplePass to see if that's needed.
I'll be back with an update.
chemus79

Sound issues with a Pavilion dv7 laptop, please help!

Hi everyone!
I have the Pavilion dv7 laptop and LOVE IT! It's a great machine and has amazing features, especially some quality sound, when it works. I'm looking for some help with this problem. I can fire it up and have sound. And then the sound will cut our and when I go down to the volume and open up the sound properties, my speakers are missing and it says it's using an HP dock, which I don't even have. Sometimes, it will say that it's using headphones. But the option for my speakers does not show up.
I can reboot and sometimes that will help and it will fire back up with sound, sometimes not. I'm looking for suggestions on what to do to keep my sound from going out.
Thanks in advance!
-Sean :-)

Likely the AC power jack has gone bad and needs to be replaced. Not sure why or how it can work if you remove ACPI support but the jack does have a pin that carries data to the motherboard and I suspect yours is bad. This is the part and what it looks like. It is a middle-difficulty replacement, at worst.
Part:
http://www.ebay.com/itm/HP-DV7-3000-DV7-3100-Series-DC-Power-Jack-Cable-/220895749025?pt=LH_DefaultD...
Manual:
Service Guide

Why am I getting an intermittent buzz with preamp and studio monitors?

I've just gotten rid of my desktop computer speakers which plug into the mini-headphone audio out on my Macbook Pro (i7, 2.66, mid 2010). Instead, I've connected via firewire 800 to an older 8 ch Presonus Firestudio Project preamp, and have connected a new pair Fostex powered studio monitors to that for my audio (and scratch recording). When I first start playing music in iTunes it all sounds great. But after a while, I'l start to get these periodic loud electronic buzzes. It's not just in the background, it actually will cut off the song to make the loud sound for a brief second. Over time it will become more frequent, and at one point it got to the point that it was just a constant buzz, no audio at all. Unplugging firewire stops it. Since there are a number of components, I'm not sure what is causing the problem. Can anyone help?

The update didn't apply correctly, which will be typically due to an interuption within your setup. You will have to connect to iTunes via micro usb to restore.
http://support.apple.com/kb/HT4367?viewlocale=en_US&locale=en_US

Desperate needing help with HP Pavilion DV7-1450us HDMI audio output

I have tried a lot of different things to get audio output to my tv with no luck. I get video output fine. I notice when right-clicking the speaker on my taskbar there is no option to enable HDMI audio output any help is greatly appreciated as we are waiting to watch a movie <_< thanks.

Hi Sez,
Try using Recovery Manager to reinstall your AMD Graphics Driver package as this will also reinstall the AMD HDMI Audio driver- the procedure for using recovery manager to reinstall Software and Drivers is detailed in the relevant document on the link below.
Recovery Manager - Windows 8.
Recovery Manager - Windows 7
Recovery Manager - Windows Vista
After the reinstallation has completed, restart the notebook.
Regards,
DP-K
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Pavilion dv7-1245dx loads apps slowly, freezes w white screen, hangs with rotating icon

I have dv7-1245dx, less than 1 year, running Windows 7, Norton, Microsoft Office apps, esp Outlook, use several real estate apps that are web-based. I'm trying to run my business with this machine, but am having constant performance problems: loads apps very slowly (1-2 minutes), freezes at random times (no pattern I can detect) and the screen turns white, or system just hangs and displays the rotating icon endlessly. Usually, my only resort is a hard shutdown (ctr-alt-del doesn't work as it won't take any input). Have run optimization/maintenance tools, had repair person and geek squad look at it, but either it seems fixed then starts these behaviors again in a week or so, or they say they can't diagnose any problems with the maintenance tools. Can anyone help me? Thx!

I have the same issue with a Pavilion DV7 19xx running vista home premium, it freezes every 20 seconds for a minute, so that it appears that the programs are not responding, however after a minute or so it starts to run normally., only to freeze 20 seconds later again, something impossible to fix,I tried to run a chcdisk, with no positive result, and the restore point seems to have been lost or deemed invalid...
This even happens in all fail safe modes
So I downloaded the service manual, as the warranty has expired on this particular model that was a replacement model for another model that went bust and was given to us instead of very severely mal-designed laptop, that either was a Monday model, or was bad from the design out...
I opened it(the new model), and the cooling ribs was full of dust, and this on a model that is less than a year old(however without warranty due to specific circumstances). A PC requires service, just like a car, but not in less than a year...
in regard to heat problems..
This model as the former, got so hot that it was to hot to sit on my wifes lap, I would even state that it is a fire hazard, and that HP should look into this NOW before it ignites a fire somewhere and a law suit drops in and they would have to recall PCs like auto mobiles sometimes get recalled..
there is an open space, just behind the cooling ribs where a fan draws in air (and dust), however the ribs spacing is so small that any dust will get caught there, after a while there is so much dust that the heat sinking performance is lost and the PC starts to shut down, due to overheat.. however, it can stall, and just keep on heating, until it reaches some critical point.
I am generally getting very tired of these issues with HP laptops, and will most certainly not buy one, the next time my wife needs an Upgrade due to my experiences with not 1 but 2 different laptops, that is not up to the job, they claim to be...
In fact, I'm speculating in submitting a complaint, to my countries "ombudsman", that takes care of these issues and can invoke certain penalties on companies who are breaking certain marketing laws such as supplying products that continuously keeps breaking down... due to mal design.. a mal design is for example when a speeder in a car jams.
I would still be great-full for any advice on how to fix the freezing problem..
I cannot recommend though to open your laptops without you being a skilled technician, and you will need the service manual to do it..
Any advice/recommendation is welcomed, although I'm not optimistic..
I'm 36 years old and have been working with computers since I was 12, so I'm not some kid that is just mad, in fact I do understand that sometimes in order to earn money in these days, things are getting rushed, and when they do, errors happen as we are all humans..

HP Pavilion dv7-3069wm touch controls not working

Above the keyboard, next to the power button there was a lit up mute, volume control, and wireless control. At one point the wireless and mute button stayed amber until I did a hard reset. Now they are completely gone. The volume control and DVD controls are lit up white, but don't work. The Quick Launch icon is also gone.
The HP Quick Launch software has been update, but still nothing. I've installed the latest BIOS, but that didn't help either.
Does anyone have any suggestions? The laptop is out of warranty.

I have a diferent problem but its also with a Pavilion dv7-3079wm. I bought it in february 9 of 2010 and today when i check the warranty i discovered that was allready finished.
When i have like an hour or hour and a half using the internet or word or just listen music, suddenly the laptop stop working and the image on the screen gets frozen. Anything works and i have to shut down by the power button.
It takes like 15 minutes to restart again.
But if i just started to use it and open a videogame (age of empires) or a program which needs more graphic memory (archicad 12) the computer stop working at 5 minutes.
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Atte: Zombi

Pavilion DV7-3100eb

I have a problem with a Pavilion DV7-3100eb with i5 processor.
Lately I noticed that the fan is constantly running and making a lot of noise + CPU gets hot. As soon as 2 two applications are running it even shuts down. I installed the latest BIOS but that didn't solve the problem. It is impossible to continue using this PC. Anyone experienced teh same problem? Any advice is highly appreciated.

Hi @mhendricks1290
Welcome to the HP Support Forums!
I understand that you are have trouble with what seems like a system recovery or a system restore. There is a difference in the two, but you refer to it both ways, so I am not absolutely certain which it is you are doing. But I will try to help as I can.
Please verify the full product number of your notebook. See the following document if you need help in finding that.
How Do I Find My Model Number or Product Number?
With that I can find the correct driver page for you which may be useful, especially with the type of error you are seeing.
Assuming you are using system restore, check out this page:
Using Microsoft System Restore (Windows Vista)
If on the other hand, you are doing a system recovery, I recommend that you back up any data you can first, as otherwise, it will normally reimage the system to factory defaults. If you need some help with that check out this page which covers a few ways to try to get data off of a computer that is not starting.
How to Recover Data from the Hard Drive of a Dead Laptop -wikihow.com
Then you can look at these pages showing the methods and some troubleshooting for recovery:
Performing an HP System Recovery (Windows Vista)
System Recovery May Fail or Display Error Message (Windows 7, or Vista)
Performing an HP System Recovery from a USB Flash Drive (Windows Vista)
Let me know if that helped at all.
Malygris1
I work on behalf of HP
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HP Pavilion dv7-4190us Bluetooth installation

This model doesn't have Bluetooth installed. I am planning to buy an internal module for this device. What do I search for on the web specifically to get one that is compatible with my unit? Thank you.
This question was solved.
View Solution.

Hi:
You will need to order the bluetooth module that is listed in your service manual.
http://h10032.www1.hp.com/ctg/Manual/c02666747.pdf
Please see chapter 3, page 25. You will need to order this one.
For use only with HP Pavilion dv7 Notebook PC 40xx computer models 537921-001
You will also need to order the cable...The Bluetooth module cable is available using spare part number 605323-001.
I hope you are ready for some major disasembly to install it. See Chapter 4, page 87, and all the other pages necessary from there.
Parts can be ordered on line at the site below:
http://h20141.www2.hp.com/Hpparts/Default.aspx?mscssid=61D96C6B74B9468D9D5ED0161584B318
The cable cost more than 2x as much as the bluetooth module!
Paul

HP Pavilion dv7-6b32us Fan Buzzes when running fast

I have an HP Pavilion dv7-6b32us and within the past few months my laptop heats up pretty easy and whenever the fan starts running really fast it will buzz and it vibrates enough that I can feel it a bit in the top left area of the laptop, the only way it stops is if I tap that area pretty hard. I'm assuming this means the bearings or something on the fan are shot, and it needs to be replaced. I've tried to clean the fan area the best I can (though there's never a lot of dust inside) but if I remember from the last time I took it apart, I can't get to it very easily without removing the motherboard, so i have to clean the fan with the cover on. Is there a way to fix this or if not, where can I get a replacement fan?
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CaseyF wrote:
I have an HP Pavilion dv7-6b32us and within the past few months my laptop heats up pretty easy and whenever the fan starts running really fast it will buzz and it vibrates enough that I can feel it a bit in the top left area of the laptop, the only way it stops is if I tap that area pretty hard. I'm assuming this means the bearings or something on the fan are shot, and it needs to be replaced. I've tried to clean the fan area the best I can (though there's never a lot of dust inside) but if I remember from the last time I took it apart, I can't get to it very easily without removing the motherboard, so i have to clean the fan with the cover on. Is there a way to fix this or if not, where can I get a replacement fan?
Hi,
Have a look at the service guide.
http://h10032.www1.hp.com/ctg/Manual/c03043778.pdf
Your laptop should have a shared graphics Intel 3000 so pick the heat sink/fan assembly for the Intel UMA memory:
http://www.ebay.co.uk/itm/666392-001-New-HP-dV7-Heatsink-Fan-/360733774145?pt=LH_DefaultDomain_0&has...
A how to manual with pictures starts from page 46.
Dv6-7000 /Full HD/Core i5-3360M/GF 650M/Corsair 8GB/Intel 7260AC/Samsung Pro 256GB
Testing - HP 15-p000
HP Touchpad provided by HP
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Problem on HP Pavilion dv7-6c90el with Windows 8 Pro x64 on Video Card

good evening,
I just finished installing Windows 8 x64 from Win7 Pro, I was able to find all drivers for my notebook, but I have problems with the video card settings.
My laptop is a HP Pavilion dv7-6c90el with two video cards, one run by the processor because it seems to me to be a part, and the other normally installed on the PC.
The cards are read by Windows as:
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I ask you to help me because I need the performance of the video card for my work.
This question was solved.
View Solution.

Hello systemgvp,
Your notebook is a Business model. Your issue would be best answered on the HP Enterprise Business Community Forums
Good luck,
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HELP HELP HELP with adminstrator password for pavilion dv7 beats audio

Hi. I need help with adminstrator password for pavilion dv7 with window 7. I don't remember with is the adminstrator password for pavilion dv7 beats audio. Is there anyway you can help me with this? once i enter 3 times is gives me this system disabled code: 52464663.

Hi
Try this Key : 43542265 That should fix your issue
Hope this helps.
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HP Pavilion dv7-6b01tx - Problems with usb 3.00

HP Pavilion dv7-6b01tx
A3E26PA#ABG - running windows 7, 64bit
Have been trying to connect to an external hard drive with usb 3.00 linked by a usb 3.00 cable into one of the usb 3.00 ports (backwards comapatible usb 2.00) upon connection into the port the system notified me with a message that the drivers didn't correctly install.
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depending on which usb 3.0 controller you have, try installing the most recent one.
here you can find those offered on hp's driver page for your notebook:
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?os=4063&lc=en&cc=nz&dlc=en&sw_lang=&product=5178...
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renesas
http://downloadmirror.intel.com/19880/eng/USB3.0_allOS_2.1.28.1_PV.exe
fresco logic
ftp://ftp.hp.com/pub/softpaq/sp57001-57500/sp57234.exe

Intermittent Buzzing with HP Pavilion dv7

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