Unusual sound while booting up mac

When I boot up my system, it makes an ususual sound just before the screen start displaying. Please tell me whether it is an issue or not, I am not able to figure it out.

If you are worried that something is not right, you can try running an Apple Hardware Test before making an appointment at the Apple Retail Store. Hold D upon startup to run this. Below is the article that will show you how to do this.
http://support.apple.com/kb/HT1509

Similar Messages

How to remove boot options while booting in mac with the options key

I've just installed windows trough bootcamp, but somethings went little bit wrong,
Everythings works fine, mac works and windows 7 works properly. But when i hold down the option key while booting i dont have the normal 3 options (Mac, Windows, Mac Restore). I now see these options (MAC, Windows, Windows, Windows efi, mac restore).
MAC -> works fine
1e windows -> (error no operating system installed)
2e windows -> works fine
3e Efi windows (boots into mac)
MAc restore -> works fine
So is there an way to clean up these options?
Thanks

You think someone will use Boot Camp Assistant?
EFI is / was always there. Sometimes it shows up (from using Disk Warrior).
Windows has its own 100MB system reserved as well that is the boot area.
I'd start with Lion Recovery, show hidden features and partitions, and check the health of all, and repair HFS volume.
Also try your Windows DVD and see if it sees a problem.

Need to boot broken Mac-Mini using retail Snow Leopard 10.6 DVD

Hi,
In Summary:
==========
I have Mac Mini (late 2009) which does not boot anymore and I need to install Snow Leopard using retail DVD (version 10.6). The OS/installer from the DVD does not seem to boot either. I always very much appreciate the efforts of true geeks. So please, any casual beginner, please do not demoralize with something like "cannot be done" etc.
The complete story:
==================
The start of the problem:
1. All of a sudden, one fine day, on start up, my Mac Mini strated to shut itself down without no apparent reason to me. When trying to boot, it would show a progress bar for about 5 minutes - I am assuming that was disk-consistency check being performed. My best guess is that right after the use of Carbon-Copy Cloner (but I am not 100% sure) it all strated to happen.
2. Performed Mac's Disk-Util check and [Verify Volume] used to display "invalid directory item count, should be 31 instead of 29". Surface scan said disk hardware is 100% fine. Volume Repair never worked, since OS X was installed on the primary disk. I lost the DVDs that came with this Mac Mini, so the option to boot from that DVD and launch Disk Util etc. was not possible.
TechTool Pro - No Help:
3. Started googling and had to choose between [TechTool Pro] and [Disk Warrior], opted for TechTool Pro. Tried its bootable DVD only to learn that TechTool Pro cannot fix it. Again, it's surface scan suggested disk hardware is 100% fine. Sent the details to TechTool Pro support team, they couldn't help either after a couple of e-mails+data exchange. (How do I claim my lost money with TechTool Pro - suggestions appreciated as well).
Googling / Mac Forums:
4. Started looking into forums, learnt that someone had successfully repaired this problem using Ubuntu 11.04 install DVD (i.e., without installing the Ubuntu, but just using its 'try from DVD' feature). I had that handy, but forgot to disable HFS+ journaling before attempting to fix the problem. Anyway, attempting volume repair that way couldn't fix the problem as well. However this step took away my ability to boot from Mac.
5. However using Ubuntu's bootable disk, I could access Mac-HDDs contents - and was able to successfully back-up *all* my important data.
6. Googled and learnt that just attempting to boot using Ubuntu DVD can take away ability to boot using Mac bootable media - possibly due to EFI internals. Suspecting EFI is now corrupt, I tried other 'hacks' like:
6.1 eEFIt Boot Disk - which does not work at all,
6.2 Empire EFI w/ Chameleon - not sure how to proceed with options presented - trying either does not work,
6.3 Super GRUB2 - boots fine, but attempting to boot from Mac-HDD fails after a couple of seconds,
6.4 Boot-132 - boots fine, prompt asks for input, but then I cannot eject/replace the DVD due to Mac-Mini (lack of) design,
6.5 Ubuntu 11.04 / 11.10 - still boots fine - just that I cannot go into Mac-OS-X from here,
6.6 TechTool Pro bootable DVD - which used to boot fine earlier stopped to boot.
As you can see, none worked successfully. So I didn't yet try other popular rescue media - as I suspect that is not the direction I need to go into.
>> Looks like most of my problems are due to the fact that I have Mac-Mini which does not allow eject/replace of DVD from command prompt / out side of Mac-OS-X.
7. Tried emptying EFI partition, playing with EFI/Mac-OS partitions boot flags, Zapping the PRAM, nothing still allows me to boot either from Mac-HDD or any Mac-Bootable-DVD.
Current State:
8. Now while boot time, Mac displays a gray screen for a few seconds, and then a blinking prompt on black background. That's it!
Snow Leopard 10.6 Retail Install DVD:
9. Went to Mac store and bought this DVD only to witness that I can't boot from it as well. (This is a huge shocker, how is Apple able to sell these DVDs if these don't work on genuine MacMini itself. After all we are able to boot from and install Windows/Linux on a variety of Machines).
I am hoping for a very small step/fix that I am missing, since I can still see and access all Mac-HDD contents after booting from Ubuntu bootable DVD. However I am prepared for a good amount of exercise as well - assuming someone posts a valid/verified fix.
Things available right now:
==========================
A. Genuine Mac-Mini (Late 2009) who lost it's ability to boot either from its HDD or Mac-bootable DVDs (TechTools Pro, Mac OS X retail DVD)
B. Mac OS X 10.6 Retail DVD
C. NOT AVAILABLE - DVD that came with this Mac-Mini
D. Variety of rescue DVDs, listed in section 6 above
E. Another machine/PC with Ubuntu 11.04 - giving me ability to access internet
Thanks for reading.
Zita

I had a similar discussion recently with another user.
Your Mac mini (late 2009) originally came with Mac OS X 10.6.2 build 10A432 or build 10C2234 see http://support.apple.com/kb/HT1159 it would have come with an original install disc specific to your model of Mac which you could use to run Disk Utility from or to do a complete reinstall.
The retail boxed copy of Mac OS X 10.6 (Snow Leopard) was originally intended for older Macs which had previously come with Mac OS X 10.5 or 10.4. It would have on it a version of Mac OS X 10.6 or 10.6.1 which would be able to boot these older Macs, but had no need to boot newer Macs which were released after the launch of Mac OS X 10.6 since all those newer Macs already shipped with their own discs.
So it is normal that the retail boxed Snow Leopard installer does not work on your model Mac mini. You should be using the one that shipped with your Mac mini instead. I am guessing you have lost it.
Assuming you have lost the Mac mini original disc, I can suggest the following options to try and workaround this.
If you have another Mac, an older Mac, one that will be bootable using the retail Snow Leopard install disc you have, you could do either of the following.
Connect an empty external GUID partitioned hard disk to this other Mac
Boot from the retail Snow Leopard installer
Install on to the external disk
Once the install is complete, update it using the combo update not the one via Software Update to Mac OS X 10.6.8. This will add all the newer drivers needed to allow it to work on your newer Mac mini. You can download this combo update from here http://support.apple.com/kb/DL1399
You can now disconnect the external drive and connect it to your Mac mini and boot from it by holding down the Option key when you turn the Mac mini on
or a similar process if you want to wipe the Mac mini and reinstall directly on to it
Boot the Mac mini in FireWire Target Disk Mode (see http://support.apple.com/kb/ht1661 )
Connect the Mac mini as an external hard disk to the other older Mac
Boot from the retail Snow Leopard installer
Install on to the external disk
Once the install is complete, update it using the combo update not the one via Software Update to Mac OS X 10.6.8. This will add all the newer drivers needed to allow it to work on your newer Mac mini. You can download this combo update from here http://support.apple.com/kb/DL1399
You can now disconnect the Mac mini and boot from it as normal
Note: While the Mac mini is connected in FireWire Target Disk mode to the second Mac, you could backup (if you don't already have a backup) any files you need to retrieve.
If you don't have a suitable second Mac you may have to either borrow someone else's, or get the help of an Apple Store if one is in your area.

How do I access the music from my Mac drive while booted into Windows?

How do I access the music from my Mac drive while booted into Windows via Bootcamp? I tried using MacDrive but it's not supported for Vista 64-bit edition. Is there another program out there that I can use? I just want to be able to access my music that's on Leopard while in Vista. Any advice will be much appreciated. Thanks in advance.

Your best bet is to move the music on the Windows side since Leopard will be able to read and play the music from the mounted Windows drive (Leopard will not be able write anything to the Windows NTFS partition).
In your case it won't work the other way around.
Axel F.

Have Imac with boot camp windows 7. Sound works great in mac but no sound in windows?

I have new IMAC 24 with snow leopard os and installed windows 7 ultimate 32 with boot camp. The sound works great when in MAC but there is no sound when boot up in windows.The mixers show a sound level as music is plaing but no sound out of speakers or earphones. I read on forum that many others have had same situation with Mac Book Pros and had success by downloading new realtec audio drivers, but my system has Cirius 2406 ab9 drivers and I can't find any replacements for them. Does anyone have a fix?

Keep on trying, keep searching as there are quite a few work around's for different issues.
One way is to reinstall the Boot Camp drivers and update them again via the Apple Software Updater in Windows. You did update them the first time, right?
Or extract the sound drivers from the Boot Camp package (or the DVD if you have it) and just install those again. You should find a few how-to's in the search results.
Sorry I can't help more...

Weird sound when booting and restarting Mac

Hi,
Since a week or 2 (that i've noticed) the superdrive makes a somewhat weird noise when restarting or booting the Mac. The usual sound, that i'm sure needs no description or explanation, is now accompanied by a higher pitched "jamming" sound.
The SuperDrive Update 3.0 won't run on this Mac and there are no firmware updates available.
I am confident i did not have this sound before 10.6.2 but i am not sure when it started after the 10.6.2 update.
It reads/writes any disc i put in there just fine and the sound does NOT happen when i take the Mac out of sleep mode, then it gives the normal sound it always has given. Also when inserting/ejecting a disc the sound is normal.
Any idea's or suggestions?
It's a MBP 17" Early 2008.
Any help greatly appreciated
Jay

Anyone ?

Buzzing Sound While Mac Pro is off

I just noticed a very low bizzing sound coming from my mac pro. It occurs when the machine is actually off. Is this something to be concerned about? Do others have this very low sound coming from the computer while its off?

PSU first likely suspect I guess.
Also insure that if you have a UPS, that it is above 1000VA, also related to problems.
Mine causes a hum when in use, trouble is, that even after shutdown, my ears still ring (sounds like 100s of chirping crickets or just plain "tingling ears" that won't go away for hours once it starts.
Hard drives have often been able to set the whole metal case to some kind of hum or discordent clash of vibrations.

Five beeps sound while i-mac working

This morning my i-mac 2.66 Ghz 4GB sdram OS10.5.8 started sounding five beeps while working. No problem starting up. Flawless operation for many months. Can find no reference to diagnostics where beeps sound while computer is one. Anyone explain?

Intermedia10 wrote:
Can you remind of the keys to use, please
from the support article i linked above:

Dual boot windows mac mini

I got a Mac mini and in general I'm happy with it but found out that there's some software I use regularly that is just much better on Windows. They barely support OS X although technically they do. So I would like to dual boot Windows as it seems like this is supported and not crazy.
I followed the bootcamp and some guides I found via Google. I have the mac mini 2014 with 8 gig ram and 1 terabyte of space. I have dual monitors setup and a logitech mouse and a logitech gaming keyboard G110 - both USB. (I also own a wireless apple keyboard which I occasionally use with my iPad). My first problem was a DOS screen telling me I can't boot up on the specified disk but I did get some help off Google telling me to hold down option while booting (this should be in the guides ;p) but it was easy to fix.. however I'm stumped on what's happening now.
When I click the Windows partition, it starts booting up Windows 7 Premium 64 bit setup and all looks good. Then a screen pops up asking me what language/region I am. The default is United states (perfect). On this screen my keyboard and mouse are useless. Or it's frozen. I think the former. I think the computer just can't recognize them. And I cannot figure out a way around this. If anyone can - please help I will be very thankful.
I've tried booting up using the Windows 7 DVD I own and an ISO installed on a USB flash drive per the Bootcamp installer. Results are the same.

Use Boot Camp!! Sounds like you have the install disc. Make sure you completely erase a USB 2.0 Thumb Drive format it as one MS DOS Master Boot Record partition. Download Drivers to it. I checked this box in boot camp only.
Having install disc and driver thumb drive ready. Insert Windows install disc and plug in Thumb drive.
Open Boot Camp uncheck first 2 boxes. Continue
Size the BOOTCAMP partion you want it to be by sliding the bar. Or split your HD is an option.
After that is complete. You will be asked where to install. Select BOOTCAMP partition
Click Drive Options (advanced). Click Format. Click OK. All goes well you click Next and it will format as NTFS
Follow instructions to to install, set up and configure Windows.
GO TO APPLE SUPPORT no where else. PRINT BOOT CAMP Installation & Setup Guide. It is in my binder with my Windows 7 Professional Disc. You'll need this, I'm afraid, to have on hand. When Windows is up and going, Antivirus 1st, Install Windows express updates only. Do not update Apple drivers for Windows. Running Windows 7 Pro on my Mac Mini since I bought it in August. Use it for those outdated programs I can't run on Mac or Windows 8. Love it.
GET THE MANUAL Please. Have fun with it.
Oh, try left clicking your USB Mouse to make it work. If not use keyboard strokes. i.e. I a ccept the license agreement (note that the a is underlined. hit "a" on the keyboard to check box.

Sound cutting out on Mac Pro (late 2013)

Bit of a long one and I'm not sure if this is the right place so sorry in advance.
For the past 2/3 weeks the sound on my new Mac Pro has been cutting out completely. It doesn't matter if headphones, external speakers or nothing is plugged into the back the sound just cuts out. It only comes back if I reboot the mac or kill 'audiocored' (as suggested by some people over on the Apple Support Forums.
The sound would cut out when I'm using CC products and when I'm not. It would range from 3 hours of not cutting out to every 15 seconds. If it occurred when I watching a sequence or clip in Premiere it would make the playback slow to a crawl and if I was watching a video on YouTube and it would occur the video would then stop and no longer load. The cut outs are to my knowledge completely random and I'm not doing anything that I haven't done a million times before when it occurs.
I've been contacting Apple for a while now and gone through a number of different troubleshoots (booting in safe mode, resetting the PRAM, logging in as another user) and the issue occurs on everything. The only fix I did find was if I created a new partition on the hard drive and boot into that then the sound issues don't occur.
Which leads me to why I'm posting this... That partition didn't have any Adobe software. I then uninstalled all Adobe CC programs on the main partition and the sound issues then stopped completely. Only when it's all installed (even when they're not even open) do the sound problems occur, which leads me to believe the sound cuts are due to Adobe CC software.
All Adobe and Apple software is up to date. I've trashed the preferences on all my Adobe software as well as clearing the cache.
I realise this is a bit of a weird one and maybe in the wrong support forum but I'm getting to my wits end. I've got huge projects dropping very soon (with tight deadlines) that I need to work on and can't be rebooting the mac every 5 mins.
If anyone has any suggestions on how to fix this I would be greatly appreciated.
I'm currently toying with the idea of doing a factory reset of the computer but I worry as I know that will take some time re-downloading / installing all my software and documents.

I have had a bit more luck it would seem.
Turns out it wasn't and Adobe software that was causing the problem rather some faulty RAM. I took all the RAM out and then put it back in again a few seconds later (doing exactly what Apple support told me to do) and voila the sound issues were gone. Although one of the cards decided not to work any more and I was left with 12gb rather than 16gb. Have since replaced all the default RAM with a more powerful third set from a party provider and haven't had any trouble since.
It's very strange that this problem is persisting for you even after the RAM being replaced. All I can suggest is that you keep calling Apple as their support services seem to be pretty good (for me at least).
Sorry if this is no help at all.

Unusual sound when waking from sleep

To start off I have a black MacBook that I bought around March of 2006. Never had this problem before so I am a little concerned.
Okay to the issue, I woke my Mac up around 1:40pm today but instead of the usual wake up noise I got something else. It's the regular noise only it sounds a bit slower and lasts a second or two longer then it normally does. I wait a bit then I put my Mac back to sleep. After waiting 2 or 3 minutes I woke my mac back up with the same results. It wakes up fine, but it emits that unusual sound when waking up. I don't know if this is related or not but before waking the first time I did notice that my Mac was a little warn where the powercord attaches even though it had been off since about 3pm the day before and was located in a relatively cool room.
I also noticed when I put my ear up to my Mac that there is a weird buzzing sort of sound. It is continuous, but can only be heard if I put my ear up to the keyboard.
I'm wondering if something went bad on my Mac, since I have had it for about 3 years now with no prior issues other then heat issues.
Any help would be much appreciated.

The usual wake up noise you refer to is the optical drive spinning so as to check to see if there is a disc inserted in it.
Your Macbook should not be at all warm anywhere if it had been off for a few hours as you said. It should be room temperature if it was indeed shut down. Are you certain it was shut down?
I don't have any solutions to your problem, but just stating a couple points.
If it continues to do this try booting up into another User Account. Create a new account for this purpose. If it works good in a new, clean user account then the problem is in your main account. If the problem still persists in the new account try an Archive and Install with the install DVDs. If this does not cure it then the problem may well be hardware, but not for certain. But, this is the non-destructive, non-evasive way to go to start with solving the problem.

I was wondring if there is any top free app for cleaning up the computer and make it run faster while booting, on startup and while surfing web. I am using a macbookpro with IOS10.8.5, under chrome,safari,firefox net environment. thanks on yourhelp

I was wondering if there is any top free app for cleaning up the computer from malware, phinishing apps, adware, and othere malicious softwares and make it run faster while booting, on startup and while surfing web. I am using a Macbook pro with IOS10.8.5, under chrome,safari,firefox net environment. thanks on your help

I was wondering if there is any top free app for cleaning up ...
There is no such thing, since the problems you are describing can have various causes. Seeking anything claiming to "clean" your Mac is asking for trouble, since all of those products are scams, whether they are "free" or not.
If you are having trouble with your Mac, describe what it is. Be as specific as possible. For general recommendations read below.
There will always be threats to your information security associated with using any Internet - connected communications tool:
You can mitigate those threats by following commonsense practices
Delegating that responsibility to software is an ineffective defense
Assuming that any product will protect you from those threats is a hazardous attitude that is likely to result in neglecting point #1 above.
OS X already includes everything it needs to protect itself from viruses and malware. Keep it that way with software updates from Apple.
A much better question is "how should I protect my Mac":
Never install any product that claims to "clean up", "speed up", "optimize", "boost" or "accelerate" your Mac; to "wash" it, "tune" it, or to make it "shiny". Those claims are absurd.Such products are very aggressively marketed. They are all scams.
Never install pirated or "cracked" software, software obtained from dubious websites, or other questionable sources.
Illegally obtained software is almost certain to contain malware.
"Questionable sources" include but are not limited to spontaneously appearing web pages or popups, download hosting sites such as C net dot com, Softonic dot com, Soft pedia dot com, Download dot com, Mac Update dot com, or any other site whose revenue is primarily derived from junk product advertisements.
If you need to install software that isn't available from the Mac App Store, obtain it only from legitimate sources authorized by the software's developer.
Don’t supply your password in response to a popup window requesting it, unless you know what it is and the reason your credentials are required.
Don’t open email attachments from email addresses that you do not recognize, or click links contained in an email:
Most of these are scams that direct you to fraudulent sites that attempt to convince you to disclose personal information.
Such "phishing" attempts are the 21st century equivalent of a social exploit that has existed since the dawn of civilization. Don’t fall for it.
Apple will never ask you to reveal personal information in an email. If you receive an unexpected email from Apple saying your account will be closed unless you take immediate action, just ignore it. If your iCloud, iTunes, or App Store account becomes disabled for valid reasons, you will know when you try to buy something or log in to this support site, and are unable to.
Don’t install browser extensions unless you understand their purpose:Go to the Safari menu > Preferences > Extensions. If you see any extensions that you do not recognize or understand, simply click the Uninstall button and they will be gone.
Don’t install Java unless you are certain that you need it:
Java, a non-Apple product, is a potential vector for malware. If you are required to use Java, be mindful of that possibility.
Java can be disabled in System Preferences.
Despite its name JavaScript is unrelated to Java. No malware can infect your Mac through JavaScript. It’s OK to leave it enabled.
The same precaution applies to Adobe Flash Player. Newly discovered Flash vulnerabilities appear almost weekly.
Beware spontaneous popups: Safari menu > Preferences > Security > check "Block popup windows".
Popup windows are useful and required for some websites, but unsolicited popups are commonly used to deceive people into installing unwanted software they would never intentionally install.
Popups themselves cannot infect your Mac, but many contain resource-hungry code that will slow down Internet browsing.
If you ever receive a popup window indicating that your Mac is infected with some ick or that you won some prize, it is 100% fraudulent. Ignore it.
The same goes for a spontaneously appearing dialog insisting that you upgrade your video player right this instant. Such popups are frequently associated with sites that promise to deliver "free" movies or other copyrighted content that is not normally "free".
The more insistent it is that you upgrade or install something, the more likely it is to be a scam. Close the window or tab and forget it.
Ignore hyperventilating popular media outlets that thrive by promoting fear and discord with entertainment products arrogantly presented as "news". Learn what real threats actually exist and how to arm yourself against them:
The most serious threat to your data security is phishing. Most of these attempts are pathetic and are easily recognized, but that hasn't stopped prominent public figures from recently succumbing to this age-old scam.
OS X viruses do not exist, but intentionally malicious or poorly written code, created by either nefarious or inept individuals, is nothing new.
Never install something without first knowing what it is, what it does, how it works, and how to get rid of it when you don’t want it any more.
If you elect to use "anti-virus" software, familiarize yourself with its limitations and potential to cause adverse effects, and apply the principle immediately preceding this one.
Most such utilities will only slow down and destabilize your Mac while they look for viruses that do not exist, conveying no benefit whatsoever - other than to make you "feel good" about security, when you should actually be exercising sound judgment, derived from accurate knowledge, based on verifiable facts.
Do install updates from Apple as they become available. No one knows more about Macs and how to protect them than the company that builds them.
Summary: Use common sense and caution when you use your Mac, just like you would in any social context. There is no product, utility, or magic talisman that can protect you from all the evils of mankind.

Solution to Sound flowers corruption of MAC Audio drivers

Solution to Sound Flower corruption of Mac Audio drivers
I recently upgraded/ repaired my 2011 Mac Book Pro. I went from 4GB to 16 GB of ram. I also removed the Super Drive and 750 GB dual partition hard drive. I replace them with a 2tb single partition drive for the MAC OS system, and a 480 dual partition SSD drive. I allocated 450 for the Boot camp PC drive and remainder for an SSD Mac OS drive. During this process, I also repaired my corrupted Mac Audio drivers. Here is how I repaired them.
#1………..You will need a bootable external hard drive which contains a current copy of your Applications, Data, and Network settings. You should already have this drive or drives with partitions containing boot PC boot camp and Mac OS. If you do not, you need to make one now.
I used Carbon Copy V5 to make a bootable copy of Mac OS and WinClone 4 to make a bootable copy of PC partition.
It does not matter that the Mac Drivers are currently corrupted if you are making a bootable copy of your internal drive. Just created the external bootable drive. For me, a nearly full 750GB drive took me over 4 hours to create.
#2……….Once the external bootable drive is created, you will need to restart your computer while holding down the option key. When it asks which drive to boot from, choose the External Mac recovery drive. Make sure this new drive is working properly and all your information is there.
#3……….Now that you are operating from external drive, use disk utility to select the internal mac OS drive and erase it. I have a separate drive for My PC boot camp, so I will keep this as a single partition drive for Mac OS.
#4………Download a new copy of the MAC OS system onto internal drive. During this process DO NOT sign in into you Apple Id account. At this point you do not want Applications or data moving over onto your new Mac OS. Once installation is done, restart computer.
#5…….The computer will now boot from the internal drive. You should see basic Applications in Launch Pad. Go ahead and play something from the internet ….you will notice your Mac audio drivers have been restored.
#6 …….Now it is time to add your Applications you have purchase over the years. Without bringing over Sound Flower App or its Folder. You do this by opening up an Apps windows for the internal Mac drive and another one for the external Mac drive. At this point you will manually drag all Apps from external drive to internal drive. However take your time and DO NOT dray over the sound flower app or its folder. If there are other Apps you to leave behind, do not drag them onto the new internal drive. Once you have verified you dragged over the Apps, restart your computer
#7 ………At this juncture, you can now use the migration assistant to move over your data and network settings. Just be sure to uncheck the migrate Applications box. If you forget, you are screwed and must start all over. I know from experience. Note the migration of data and network settings took me about three hours.
Final step …….Now that your Audio drivers, Applications, Data, and network settings are restored, you need to schedule time to update your external bootable Mac OS drive, so it no longer contains corrupt Audio drivers. Now enjoy your computer and pass solution on.
Xie xie
Dmatcyt

Ahh... Sorry for that. That's true. I took it for granted before checking Apple Specs.
So, What's about audio in specs of 15-inch MacBook Pro (MD103LL/A)?

Is there any way to browse a USB disk while booted from OSX install disk?

My hard drive died on me the other day (the mac partition anyway) and I'm trying to use a data recovery program to get my data back. I have the application on my USB key, and I assumed I'd then be able to use the OS X installer disk to boot up and then run this program from the USB drive but the installer doesn't let me browse folders or quit... Is there any way to do this? I don't have another mac to firewire or anything so it's either this or order a recovery program on a bootable disk, which I really don't want to do as I need this done fast... Any suggestions?

Your utility for data recovery usually should have come with a Mac bootable DVD with its own application on it. If it didn't, contact them for a disc that will boot your Mac with the utility on it. Your other option is to get a Firewire hard drive, partition it, and install the operating system there on one partition large enough for the operating system, while leaving the other partition large enough to recover the entire unbootable hard drive.
Partitioning is described here, and will WIPE your entire hard drive:
http://docs.info.apple.com/article.html?artnum=61301

Hi, I have a hard disk failure so to recover my data I am using disk utility to restore the data on an external drive while booting from a second external hard drive. When I perform the operation it gives me an input/output error and stops. Any tips?

Hi, I have a hard disk failure so to recover my data I am using disk utility to restore the data on an external drive while booting from a second external hard drive. When I perform the operation and after having selected both my destination and source drives, the operation begins but soon fails due to input/output error. If I try to create an image of the drive it gives me the same error message. Any help would be much appreciated.

Disk Utility only creates a image of the drive, so it's no help getting exactly what you want, which is your files. If the file structure is messed up or the drive is failing then it's no help.
If you have a external boot drive and you can't access the internal non-booting drive though the typical Finder and windows to transfer your files via drag and drop methods, then you need to install Data Rescue on the external boot drive and it will do as best as it can to recover your files. (works on non-encrypted/non-Filevaulted drives only)
.Create a data recovery/undelete external boot drive
Are you sure you have hard drive failure, or that OS X isn't merely not booting?
Because if the drive is working physically, then there is a host of fixes
..Step by Step to fix your Mac
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents#/

Unusual sound while booting up mac

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