HP/Compaq :: Conexant HD Audio Device Not Recognized In Presario F700
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HP/Compaq :: LCD- Presario F700
just yesterday i started having a bit of trouble with my screen. when I open it to a full position so it is at optimum tilt for viewing, the colors become slightly washed out and whites gain a blueish tinge, while blacks have this sort of red static/noise behind them. However, when i tilt the screen to a very acute angle, the colors return to normal. I think it might be a connection that got a little loosened- i dropped my laptop onto a car floor a few days ago while on a trip.
HP/Compaq :: Presario F700 & Windows 7 Bad Battery Performance
I recently upgraded my wife's laptop from Vista Home Premium to Windows 7 Ultimate and almost everything works fine on it. The one sticking point through has been the battery behaving oddly in Win7. The first thing is that the battery icon has a red X on it and when you hover over it it states that I should consider replacing my battery. When the laptop runs unplugged, it literally lasts 20 minutes before it powers itself off. This is a huge difference when it would last over 2 hours in Vista just before the upgrade.
I'm wondering if there are specific drivers I should install or downgrade even though everything in Device Manager no longer has any yellow exclamation marks (I had to install some drivers after installing Win7). FYI, this laptop is about 1.5 years old.
If I can't find a solution to the low battery performance, I may have to revert her laptop back to Vista which would totally negate the reason for buying Win7 in the first place for her machine.
HP/Compaq :: MIC BOOST Working On CONEXANT HERMOSA AUDIO
I have gotten microphone boost working on Conexant HD Audio.
The latest drivers from HP still gave some crackles and pops in the audio although there were no DPC latency issues. So i decided to google around for some better drivers... I found some from Acer and some from Asus, both dated March this year (HP's drivers were from sometime 2008). They worked with my laptop and gave better audio performance, but with one little issue - the internal mic did not work at all, only external did. Now, i didn't really need the onboard mike, nor was it any use anyway because it was way too quiet.
However, i noticed this little option in the new drivers that intrigued me. MIC BOOST. Wait a second... So it is available after all. And it went up to 40dB! Indeed, it worked just fine with an external mic. Then, the idea quickly came. "I'm pretty sure everything is in the INF... Why don't i poke around a little?" And i was right. Thus i got the Asus drivers working with the HP internal microphone. I quickly found out that the 40dB boost still wasn't enough, but then i found a way to get EVEN MORE BOOST. Yay!!! The mic boost still goes up to 40dB only, but now its "baseline" is set much higher. Now with 30dB boost you can hear yourself perfectly in a normal voice at a normal working position, and 40dB already drives it into clipping................
HP/Compaq :: No Audio Output Device Is Installed
My volume icon in the system try reads "No audio output device is installed." The audio device is not even recognized in the device manager (i.e. there is no yellow exclamation point or conflicted device to update a driver to). The system simply does not recognize the fact that a sound device exists.
I have tried many, many things:
Fresh install (as per the sticky-guide) of Windows Vista x64 Home PremiumFresh recovery from system recovery partitionTried all versions of the drivers from the HP support page (Realtek and Conexant) --- I believe I have conexant, though.Safe mode driver installsDriver installs on a driver signing rebootPutting the computer into hibernate, then resuming (odd, I know.. I heard it worked sometiems).Made sure "Windows Audio" service is enabled in Administrative ToolsServicesInstalled Windows XP drivers for "Microsoft High Definition Audio controller"Flashed BIOS to most recent version F.32Updated chispet drivers to most recent nForce availableeInstalled Vista SP2
I'm sure there must be one or two more things that I've tried and just can't remember. I am running Windows Vista x64 Home Premium with SP1.
HP/Compaq :: Windows 7 No Audio Output Device Installed
I have an HP DV6700 Laptop, and I recently installed Windows 7 Professional (64 bit) (The full version from MSDN academic alliance, not the release candidate). A few days afterward, I had an issue where my speaker icon has a red "x" over it, and when I hover over it it says "no audio output device is installed". The funny thing is that the speakers worked after windows update installed an update, then they stopped a few days later, and I cannot for the life of me get the speakers to work again!
HP/Compaq :: Crackling Audio Presario C501NR/XP
A few months ago my audio started crackling and stopping altogether for milliseconds at a time. I have installed XP home on this machine twice and the audio was never quite up to snuff (sounds underwater, but rebooting cures it) but I've never had this kind of problem before. Tried reinstalling the Conexant driver but i still have the problem.
Dell :: ATI HDMI Audio Device Problem
Hope someone can help here. Problem is that there is something wrong with my HDMI device. Firstly, when I plug the cable I have to restart the computer in order to recognize the external device. Once I restart I have picture on my TV from my laptop.
But there is no audio. Sound settings say there is no cable plugged. I tried everything, even re-installing win7. Initially when I bought the machine everything was working ok. But now it doesn't. I think that this started when a Dell guy replaced my screen.
Is it possible that this is something software/drivers based or the Dell guy did something bad on the hardware.
Acer :: ( 7520) No Audio Output Device Is Installed
I bought a laptop of type:
ACER ASPIRE 7520-5971
AMD Athlon 64 X2
384MB Nvidia Geforce 7000M
CHIPSET: NVIDIA nFORCE 560
BIOS: Brand: Acer, V1.33
SOUND DEVICE: Realtek High Definition Audio.
Six Months Ago, the Sound Device Stopped Working, I get the following message (No Audio Output Device is installed): It is as if NO audio device is installed on the motherboard.
Here's the catch:
Sometimes when I START my computer the Device Works, and Sometimes It doesn't. If I restart the computer like 20-30 consecutive times (IF I'M LUCKY) chances that in one of these restarts the device MAY Work. Sometimes i go weeks without Audio.
Here are *some* things I've Tried:
1) Format the System:
Different OSs I've tried: Windows XP Home/Pro, Vista, 7 and Linux.
The expirience the same problem with all these OSs. So It's not an OS thing............
HP/Compaq :: F700 Series
what do you guys know about the compaq f700 series? is this a good laptop model or it this one laptop that i should avoid? i just bought an acer that was a total POS off craigslist that i finally got rid of. and know i'm looking at a 1 year old compaq f700-(F762NR) with 3 gigs RAM for $300. supposedly in perfect condition. i'm just trying to avoid another nightmare like i did with the acer i recently got rid of...
HP/Compaq :: DV9000 104-unsupported Wireless Network Device Detected. System Halted. Remove Device And Restart
I have the DV9000 series Laptop. It is the DV9235NR model (but not the DV9200 series...shows DV9000 on the bottom).
Anyways...I decided to try to upgrade the interal wireless G with a wireless N card that is from HP. It has the HP part number and everything. When I put the card in, this error comes up. I read that the bios doesn't recongnize the card. I took the card out, booted up to Windows with my old wireless card, put the computer in sleep mode, took out the old card and put the new card in. Works perfect. I know the card it good.
How can I make the new card work without having to do this? I heard about a bios hack. How is this done? Could I modify the Wifi card also? I did update to the newest bios on my laptop (dated 2008) and that didn't work. How about a bios from another series laptop?
HP/Compaq :: F700- Hardware Failure
I have a compaq presario f700 and I got it in november of 2007. Anyways today I was surfing the web when all the sudden in lost the internet connection. The little orange light next to the switch was on but the switch was turned on. it would not find any wireless networks so I reinstalled the wireless driver from the recovery program and it worked for like 10 minutes, then the orange light came back on and I lost internet connection. Anyways I have reinstalled windows twice now and I still cannot get the computer to find any wireless connections and the blue light will not come on, it stays orange. Is this a software problem or did my broadcomm wireless hardware thing take a crap?
Acer :: Acer 6920 - No Audio Output Device Found
I had vista installed on my laptop, Acer 6920, (first OS) and it was direct from factory so everything worked fine. I then installed ubuntu and everything still worked fine. I then deinstalled both of those to put on windows 7 RC where all my hardware was working perfectly (minus the fingerprint reader but i honestly couldnt care about that thing) so my computer eventually got pretty bogged down with crap to the point where boot was about 30 minutes. during this whole time my sound seemed to work, but near the end windows stopped finding any internal sound related hardware (the speakers and the mic). For other reasons i did a clean reformat (3 times) and reinstalled 7 Professional 32 bit and when i booted i downloaded all the drivers and everything seemed to install correctly, but when i rebooted the sound still didnt work nor did the mic. the exact error message windows is giving me is "No Audio Output Device found" however when i plug in a headset or a bluetooth adapter + headphones there is audio and it works perfectly. I really need sound to work as some programs crash if they dont detect a sound output and also for monitoring audio recordings.
I have tried installing all of Realtek's drivers. Literally all of them. None of them worked what so ever despite clean installs and deinstalls.
I now am running 64bit and ive almost given up on this problem. I bearly saved this computer and i dont wanna have to buy a new because of sucha stupid issue like this.
Under the hardware manager in windows there is no tree for sound devices. there was an unknown component which i put forceware on as i thought it was the sound device but no go.
Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7600) (7600.win7_rtm.090713-1255)
Language: English (Regional Setting: English)
System Manufacturer: Acer
System Model: Aspire 6920
BIOS: Ver 1.00PARTTBL6
Processor: Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz (2 CPUs), ~2.2GHz
Memory: 3072MB RAM
Available OS Memory: 3070MB RAM
Page File: 1303MB used, 4835MB available
Windows Dir: C:Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7600.16385 64bit Unicode
Dell :: Unknown Device :: Base System In Device Manager?
I got my new laptop today, and got rid of the installed Dell Crap and installed my Windows 7 Ultimate 64-bit.
Now under my Device Manager I've got two issues:
I contacted Dell, they said they won't support my laptop since I don't have their operating system on it. All I want to know is what drivers I need. I can't believe they couldn't let me know.
HP/Compaq :: HP530 New Drive Not Recognized
the hard drive quit. after 2 years. lucky, they are not that expensive anymore. I bought the same as the original from Amazon. After trying to install Win XP Pro, it gave me the message: no hard drive found.
Means, it does not have a partition, no format. The drive ( a Toshiba) did not come with a CD to do that. (WD usually has that utility). I did a Diagnose from the Bios, didn't work either.
Does anybody know what I have to do to make the maschine recognize the drive , how I can add a new partition onto it ?
HP/Compaq :: WLAN Card For 2530p Not Recognized
I just bought a refurbished Elitebook 2530p that didn't come with a wireless card, so I bought a "Broadcom 4322AGN 802.11a/b/g/n Wireless LAN adapter (Sangria) - For use in Most of World (MOW)". This WLAN card was listed on HP's parts page for the 2530p here.
However, when I installed it and connected the antennas, the computer doesn't recognize it at all when booting up. It doesn't even acknowledge the presence of a new device.
HP/Compaq :: Unknown Device Driver
had a pre-installed vista on my 6680ej and everything was fine, till i upgraded to windows 7. now i have an unknown device in device manager called Intel(R) ICH8M LPC Interface Controller - 2815 and i can't seem to find drivers for it.
HP/Compaq :: Dv1000 No Ide Device
Recently installed Windows 7 on the notebook, maybe a couple days, started the laptop up one morning and it went into a network boot loop. Went into the bios, and it said no ide device. Popped the hard drive into another notebook, it sees the hard drive (but thinks it's empty), sees it in Win 7 setup as well as in Ubuntu. How do i go about troubleshooting what could be wrong w/ the dv1000.
I figure it's either an issue w/ the motherboard or w/ the hard drive connector if the hard drive works fine in the other notebook.
HP/Compaq :: Boot Device Not Found- Hp Tx2500z
I have a hp tx2500z
When I turn on the power for computer there's a beeping noise coming from the hard drive I think and this message comes up in blue letters with a black background
" Boot Device Not Found
Please install an operating system on your hard disk.
Hard Drisk (XXX)
F2 System Diagnostics
When I run the system diagnostics for the Hard Disk Test, it says:
"Hard Disk Test Failed
Hard disk not exist"
What do I do? I went to the website but its suggesting that I basically may have to do a system recovery to the factory installed state...I have a lot of stuff I don't want to lose.
I also tried removing the hard drive and putting it back in, that didn't help either.
I called tech support and I still have my warrranty so I will be getting a Hp box to put my tablet in within a few days. But they told me I would most likely lose all the data I have saved.
Then I used a liveCD in hopes of backing up my harddrive but the liveCD won't even boot..unless im doing it wrong...( burn iso to CD, then load CD into laptop, and press f10? and/or turn on computer with CD inserted in and then let it load if it wants to?)
HP/Compaq :: Dv4-1435dx Unknown Device
after i did clean install my os, i got a driver call unknown device..i install all the driver even gpu and intel chip.. it still having this problem. i use the online dirver updated but nothing found... then i use Hp.com online chat and ask them the problem but they couldn't give me an answer. now i am hopping you guy will know...
HP/Compaq :: Presario V3019us
i have a v3019us and it will not log into windows. It goes to login screen, enter password, then it says its loading settings but flashes straight to logging off and goes back to the login screen. it has xp home edition, and does the same thing in safe mode. tried restore disks but pc is telling me restore discs are for wrong model.
HP/Compaq :: Presario V2000
My LCD is like this when it's opened less than 90 degrees.
My LCD is like this when it's opened greater than 90 degrees.
I'm forced to use this computer in awkward position since i can't open the lid greater than 90 degrees
HP/Compaq :: Presario 1500
i have a compaq presario 1500 with a pentium 4 running XP SP3 on it. I am having trouble with keeping it under a good heat, the fan is constantly running high! i know this needs a good clean but the screws to remove the back casing are so small for me to do this! any suggestions of how i can clean inside? or get to th fan through the top by the keyboard?
secondly it tends to crash every now and then, maybe when it overclocks on the cpu?? i am recently trying out a program called speedswitchXP which seems to be slowing it down to an extent! but not solving the issue.
thirdly and finally, my battery only holds charge for around 10 minutes before needing constant wall plugin! i constantly have it plugged into the wall, could this be a result to any of my problems?
HP/Compaq :: Presario V6305NR
On pressing start button, laptop starts, but blank screen comes. After every few seconds, it keeps on rebooting, but nothing happens.
I have tried pressing F10 and Esc button on startup, but nothing happens.
Moving finger over multimedia touch buttons causes them to beep.
Few times, it shows the BIOS, but does not detect the hard-drive.
Very rarely, everything works fine and OS boots and works fine (without any sign of problem).
I replaced RAMs, hard-drive and DVD Reader in other laptop and there they worked absolutely fine.
I even tried removing the battery, connecting external monitor, keyboard, but nothing worked.
BIOS version is F.3D.
When opened, CPU fan and heatsink were dustfree.
Product Specs: HP Presario V6305NR, 1.6 GHz AMD Turion™ 64 X2 Dual-Core Mobile Technology TL-50, 1024MB DDR2 System Memory (2 Dimm), NVIDIA GeForce Go 6150 (UMA)
HP/Compaq :: Presario V2000 AC
I have a Presario V2000.
After not using for about 1 week I turned it on so I could clean it from viruses.
Got the battery alert and then it shutdown meanwhile I was pluging the cord in (Targus AC cord with
When I connected the AC to the power (not connected yet to the laptop) it "turned on" and still today
shows a blue light. But once I plug it to the laptop the blue light disappears after 3-5 seconds!
Not at the beginning nor the end of this process the laptop will turn on if I press the power button
for 'x' seconds. If I plug the cord, the computer doesn't show any "power light" and then the blue
light from the Targus AC fades off.................
HP/Compaq :: Presario C500Hardware
I have a Compaq presario C500 laptop by HP....
When I bought this computer these are the specs:
***Processor: 1.6 GHz
***RAM: 512 Mb
***Video: Up to 64 Mb Shared...
***Battery: 6 cell Lithium battery...
***Hard Drive: 80 Gb STANDARD
What I changed to:
***RAM: 2 x 1 Gb = 2 Gb total RAM...
***Hard Drive: 250 GB 7200 RPM.....
HP/Compaq :: Clean Install Of W7 On A Dv7t, One Unknown Device I Can't Figure Out
I didn't see one specific to Windows 7 driver.
Anyways, I have just about every hardware set except for this one device windows can't figure out. I have a Pavillion Dv7t-2000 series and I did a clean install of Windows 7 Home premium 32 bit. I have just about done every driver install from the driver page that pertains to my config....
So far I have downloaded:
Broadcom Wireless LAN Driver for Microsoft Windows 7
Intel PRO/Wireless Drivers for Microsoft Windows 7
IDT High Definition Audio CODEC Driver
Intel Chipset Installation Utility
ATI Mobility Radeon Video Driver
Synaptics PS/2 Port TouchPad Driver
HP Quick Launch Buttons
JMicron Card Reader Driver
HP MediaSmart MVP Software
HP MediaSmart SmartMenu
HP MediaSmart Webcam Software
HP ProtectSmart Hard Drive Protection
Lightscribe System Software...........
HP/Compaq :: Presario C500 Fan
My ancient C500 fan is noisy, a constant slight grindy noise. Its been like this for months and I cant take it anymore. Can I clean or replace it w/o too much trouble or is it time for a new laptop? Looks like I'd have to take off the whole bottom to get at it...which Iwill do, if it will shut the damn thing up.
HP/Compaq :: Presario C717NR Screen
if I opened the screen anymore than 4-5 inches, it would freeze half the screen and turn the over half into a complete jumbled mess. I ordered replacement screen about 2 months ago, and w/ me being lazy and all, it's been sitting on my office floor. I've been using the laptop daily, but instead it stays on my desk and is running through an Acer desktop monitor w/o any issues whatsoever.
So I brokedown and started installing the new screeen today, only to get this when I switched the output back over to the laptop:
It made an audible whining noise both times I switched over, so I quickly switched it off. At this point I'm wondering if the cable from the motherboard to the screen is the issue, but I don't wanna keep throwing parts at a computer this only cost me $250 brand new.
Also, when I finally get this figured out...I can't remember which plug this mic connector goes into.
It can either go here next to the keyboard cable or over here by the fan.
HP/Compaq :: Presario 2100 Locking Up
I have a Presario 2195U and it locks all the time. At first it seemed to do it at random, but then I noticed it would lock every time during installation of XP Service Pack 3, or other long laborious installations. Any time you hear the fan kick into overdrive it seems that it will lock up shortly after. It locked several times during the installation of Windows XP itself.
I hear the fan spinning, and I keep the system on a hard, flat surface to maximize airflow, but it will still lock up during larger-scale installations.
I ask if the issue could possibly stem from over-heating; the system reaches a certain temperature and locks as a fail-safe. I've also noticed that it will lock less frequently when the battery is removed. When I remove it, the battery is very warm, Perhaps the battery is absorbing some of the heat being produced in the system, contributing to the overall temperature inside the chassis?
I have since installed Ubuntu Linux on it and it locks MUCH less frequently, and from what I understand, Linux is much less CPU-intensive. I do like Linux, but it isn't suitable for what I use the system for.
If over-heating could be the issue, I'd like to purchase a better/more powerful fan, power draw isn't so much an issue as it's almost always plugged in.
The specifications for the system are:
CPU: AMD Athlon XP 1.8ghz
Memory: 1gb SDRAM
Graphics: ATI Radeon Mobile
OS: Ubuntu 8.10
If the problem is indeed thermal-related, then comes the question of how do I open the chassis...
HP/Compaq :: Recovery On Presario Cq50z
well i own a compaq presario cq50z and instead of installing/buying the disk (without license for clean install) in the PRESARIO_RP(D drive on the hard drive disk in the computer window, it says Recovery under it, i was woundering if it was a full recovery (erasing EVERYTHING off my harddrive and then putting the factory settings back on) would it do that? if you need specs (because i under stand that certain gb hdd's only have full install on recovery,
HP/Compaq :: My Presario Is Feeling Blue
I bought a Compaq Presario CQ60-211DX because it was cheap and I wanted a "backup" machine as I paid way too much for my MacBook to get "rough" with it (i.e. travel, put it in a full bookbag, take it to my school in a relatively high crime area, etc).
Well, basically you get what you pay for because this machine seems to run slower than molasses.
However, an annoying problem has popped up in that there seems to be a blue-streaked "tint" that started on pics and some video, that now exists on regular webpages as well. I haven't smashed the screen or spilled liquid on it. I have a 1 year warranty on it that's still good, but I'd rather try to fix it myself.
HP/Compaq :: Presario V3000no Display
a friend of mine has a problem with her compaq presario v3000.. power on, there's no display at all. the blue hardware lights turn on, and the CD drive opens, and im pretty sure its working inside, but no display.. wat do i do? i used a VGA cable to connect it to my TV, but the TV, which starts with that blue screen (no signal) turns off (black screen) when i connect the cable. i currently have no idea wat to do.. im assuming its a problem with the video card. but is there anything else i can try before sending it to a repair shop to have it done?
HP/Compaq :: Presario R4000- Window 7
I have Compaq Presario R4000 128MB graphic memory and 2GB memory. Now I am currently installed XP professional. Will I be able to install Window 7? If so, how could I install the drivers (VGA, network card, sound card and so on)? Should I just use Window XP drivers CD? I haven't tried with Window 7 RC 1 yet.
And for window 7, what's the difference between upgrade version and full version? Or is it the same if I have already window XP? I know only upgrade version is cheaper. Can I get clean installation with upgrade version? What about 32 bits and 64 bits, different CD or will it choose automatically?
HP/Compaq :: ( Presario CQ60) Cleaning
My little brother owns this notebook and it get rather hot when used.
It has a Intel Celeron 575 running at 2,00 GHz and a Intel GMA 4500mhd on a Intel GL40 mainboard.
It reports that it runs at 60c when idle, but it feels very hot when in use.
Even my own system runs cooler and it includes a ATI Mobility X1600 that can get a little toasty when in use.
HP/Compaq :: Presario C500 Drive
I've got an old C501NR with 80 GB HD that blue screened and died. Disk check indicated failed sectors. Wont boot into windows. Hp said its dead or dying. So I bought a 160 GB and Windows wont see any of it, neither does Bios. HP said it was too big, would only handle 120 GB so I ordered one of those, same speed/cache as the original. Same issue, its not found by Bios or Windows setup disc.
Here is the fun part: HP now says I can only use a certain part number which seems like total BS to me. Surethe 2 I tried were western digital and they come with Seagates, but so what? So if it isnt THAT that prevents me the puter from seeing the new drives, and that seems highly unlikely, what is it?? The drives are seating and connecting just fine.
HP/Compaq :: Bios Presario 2500
I just upgraded my compaq presario 2500 bios (the exact model is 2505EA) from KF.F.5 to KF.F.14 and the flasher didn't make a backup now the computer doesn't detect the momory upgrade I have anymore, it only detects the stock memory, so if anyone upgraded his/her computer bios and has a backup copy of bios version KF.F.5 and can direct me to a download link I'd be very grateful.
HP/Compaq Punjab :: Presario Cq60
i bought a new laptop the other day and this is the specs :
AMD sepron SI-42 2.1GHz
NVIDIA GEFORCE 8200M
WINDOWS VISTA HOME BASIC (32bit) with service pack 1
now would that spec b good enough to run a game with
OS: Windows Vista - Service Pack 1 / XP - Service Pack 3
Processor: Intel Core 2 Duo 1.8Ghz, AMD Athlon X2 64 2.4Ghz
Memory: 1.5GB, 16GB Free Hard Drive Space
Video Card: 256MB NVIDIA 7900 / 256MB ATI X1900
Recommended System Requirements OS: Windows Vista - Service Pack 1 / XP - Service Pack 3
Processor: Intel Core 2 Quad 2.4Ghz, AMD Phenom X3 2.1Ghz
Memory: 2 GB (Windows XP) 2.5 GB (Windows Vista)
18 GB Free Hard Drive Space
Video Card: 512MB NVIDIA 8600 / 512MB ATI 3870
HP/Compaq Iran :: Presario CQ60
i purchased over 8 months ago. The thing is, when i first bought this item, i had no problems with it, untill i installed windows 7. Now it turns off, overheats, and goes really slow. I have 1 years warranty so what would i go about sending it to? hp?. Does any1 know there details?
3 gb ram
intel Celeron dual-core processor. 2.00 Ghz.
HP/Compaq :: HP Presario V2000 Screen
I have a compaq presario V2000 and am having screen problems. The problem is that the screen is not lighting up when switched on.
I have tried two different new inverters to no avail. With the new inverters, when the computer has been turned on the screen will be fine for 10/20 seconds then go off.
I dont think it is the backlight as when pressing the small lid switch the screen lights up but then soon goes back off. All the wired connections seem to be fine.
HP/Compaq :: Presario Notebook No Sound
I have a Compaq Presario V6700 Notebook, with Realtek high-def audio running OS Vista Home premium.
I purchaced in July 08 and no problems at all with it until Feb 09.
In Feb my sound stopped working from the internal speakers. I tried updating and reinstalling drivers for the sound (used correct drivers from Compaq website) and it still didn't work so I have just used the headphones in the past two months.
I am now in a situation where I need the internal speakers to work, so I have tried updating/reinstalling the drivers again and no go. After doing some more research I have tried doing a system restore to before the issue began in Feb and still no sound.
I then did a complete restore back to scratch so I had a fresh new OS and STILL no sound from internal speakers.
I have clueless as to what has happened. I have sound from headphones and if I plug in external speakers they work fine too. The device manager says the device is working properly. The computer has not been dropped or taken apart.