IMac :: I5 - Weird Sound On Boot Up
Feb 12, 2010
Any time I boot up my i5, I don't have any audio. Putting the machine to sleep then immediately awakening it fixes the issue. Has anyone else had this happen? I've searched the forums and google but could only find threads about boot camp sound issues.
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Sep 28, 2008
Just bought today, brand new mac pro 8 core 2.8ghz. I get a weird click on both boot and start up or when I put the computer to sleep or wake it. It's a single click, imagine the sound of someone lightly flicking the side of an empty Pepsi can. It's not random, I can make it do the sound simply by unplugging or re-plugging the power cord in the back. Is this normal?
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Mar 20, 2009
My G4 iMac has been making a weird fan sound (a flickering sound, as if there were a piece of paper in it or something). Last night I turned it off and the weird fan continued running. I tried to unplug my mac and plug it back in, but the fan just starts right back up. The computer won't start, I've tried holding the start button but nothing happens. I need my computer today to work.
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Jan 22, 2010
my imac boots normally unless three things happen prior to it
1. i put the computer to sleep
2. i schedule a shut down via energy save
3. my computer undergoes a forced shutdown e.g. via power button or power failure
if any of these occur i get the infamous flashing question mark, however if i wait 30 mins it boots normally again, is there a reason for these problems other than a failing HD and can i do anything about it
f.y.i. i have already attempted clean/fresh installs of leopard and snow leopard
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Oct 28, 2009
Back in August, I did an OS update on my iMac, and the machine wouldn't reboot. I was able to reinstall Leopard by booting from a disk, and all was well for a few more weeks. The machine seemed to run normal, with the exception of 5-minute-plus boot up times. But within a few weeks it stopped booting. I installed Leopard on an external HDD and figured I'd leave the internal alone until Snow Leopard came out.
A few weeks later when SL was released, I booted from the install disk, found the internal HDD, and went through the installation process. Everything went fine but the machine would not boot. I installed SL on my external HDD running Leopard, and everything was fine. I've since been running my computer off the external.
The internal HDD no longer shows up on the desktop, in Disk Utility, etc. I'm fearing it may have died. More worrisome, though, is my machine doesn't always boot up, whether from my external HDD (set as the startup disk) or from CD. By "doesn't always boot up," I mean most of the time when I restart, it just sits on a gray screen, nothing happens (even when holding "Option" or C.) Sometimes it will boot, but takes 20 or 30 minutes to do so.
I'm considering replacing the internal HDD, but am curious, does that seem like the issue, or might the failure to boot from externals and CDs indicate a more serious problem?
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Sep 17, 2008
I'm on a 2.4 GHz MacBook Pro, just updated to version 10.5.5. Today, it seems some strange sound output issue has cropped up. Using either the laptop's built-in speakers, or the headphone jack connected to an external pair of creatures, the sound turns on and off intermittently. When I go to System Preferences -> Sound, and select output, the "Choose a device for sound output", I have: Name: External Speakers, Type: Built-in Output. Then occasionally switches to something else, a little too fast to read. Looks like "Something Output (ispk)". Every time the sound goes out, the Balance goes to "The selected device has no output controls". Weirdly, right now, I've got nothing plugged in, and its switching between Headphones, Internal Speakers, and Built-In whatever. Basically, it looks like the sound output stuff is wigging out. Sound works fine through a USB headset.
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Aug 5, 2009
I don't know how to describe it. It's almost like the pop sound you get when you raise/lower the volume, but it happens when you're doing nothing. Like the MBP is hiccuping. A very slight quiet noise, but it's strange and disturbing nonetheless. It's not a mechanical clink, like the HD or something, but a little 'pop'.
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Oct 1, 2010
When I pick it up, or when I move is suddenly (even just slightly), I get a horrible sound from the back right hand side. It sounds like a someone is putting a piece of plastic into a spinning fan. It also kinda sounds like the hard drive head hitting the disk (scratching sound). I know that these things are meant to have a movement sensor which actually takes the head OFF the disk, but this sounds like its doing the opposite (scratching the moving disk). If I do it while watching a movie, the film freezes for a second at the same time the sound can be heard - so it's definately something to do with the hard drive.
I have done some research but everyone talking about the sudden movement sensor has described the sound as a "click", not a scratch. Can someone confirm this is normal, or abnormal? It's happening quite a lot - e.g. if I just pick it up it occurs. I've had loads of laptops and this is the first that seems to make a sound whenever I move it...
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Feb 21, 2009
when i use expose or open dashboard or any other screen for that matter that opens up, i always get a high pitched "grinding" noise coming from my display. It wasnt there before and all of a sudden it starts doing this? im very confused about this as i have no idea what it could be
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May 5, 2009
I have a new 2.0ghz, 4gb ram, 320gb hard drive Macbook and it makes weird clicking noises from time to time. Is it just the machine loading or is there something else wrong with it? This clicking is very annoying and when I am typing up reports and schoolwork it sometimes makes it hard to concentrate allthough very quiet.
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Sep 11, 2009
Ok, this is kind of hard to describe without a recording of it but my MacBook has this frustrating fault where it beachball's without warning and produces a really hard to describe sound every few seconds. The best I can come with to describe it is an "uh-oh" sound from around the keyboard area. It hangs like this for anything from 2-10 mins and will be pretty much unusable in that time.
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Nov 12, 2009
For the past few days my MBP has been slow. Ridiculously slow. Beachballing to open safari etc. I have just noticed that as it tries to load things it makes a weird sound. A short burring sounds followed by a long one then a short one. Don't know if that is relevant. Earlier today it froze so i had to do a hard shutdown (hold down the power button) and then it wouldn't boot. I ended up booting it off the snow leopard disc. This problem seemed to start when i started playing wow again but i had it installed for a long time. Could this be heat related?
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Dec 18, 2008
I just bought a MacBook Pro and a Weird sound such as a disc scratching is coming from it seems my Disc drive. This only happens when I start the computer up or wake it after the HD goes to sleep. The notebook is brand new and not sure if this is normal.
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Mar 11, 2009
ive had the unibody macbook 13" since dec and its been running smoothly. the other night i shut the lid and put the comp to sleep just like every other night, i put the computer on the floor gently and woke up about 6/7 hours later. when i turned it on, i hear this weird buzzing...purring....ticking? i guess i dont know how to describe it. im sure its not the fan cuz i have istat and it would tlel me if the fans going crazy fast...which it isnt, so yea what do i do...is this a serious problem? can i get this fixed?
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Mar 16, 2010
it only sounds like the machinery inside getting into gear, and it doesn't sound like anything's broken, but i wanted to make sure nonetheless instead of whining about it to apple and have them look at me like i'm crazy.
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Jun 17, 2014
when i bootup the imac, it sounds normal but when i want to do the PRAM, after the second bootup while holding command,option,R. it sounds weaker and different than the first one.
Info:
iMac, OS X Mavericks (10.9.2)
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Sep 8, 2010
2 days ago i received my new mac pro 6-core 3,33GHz...now something really weird and super annoying is going on with this computer...From time to time there is this really loud POP trough my speaker. I'm absolutely 100% sure this has nothing to do with my amp. cables or whatever and its definatly a problem with the MacPro, i know because of the following:
Plugged in new cables, removed every installed software, plugged onto different amplifier, when there are absiolutely no audio cables plugged into the computer and when i use the build in speakers of the mac pro i still hear the POP/distortian like sound, and finaly even took it at my friends house and tested the machine there on his audio instalation...problem remained! not knowing what to do next i decided to go and see a very good technician (music instruments and studio recording) and told him about the problem, he imediatly stated that it "could be" because of the harddisk drive giving like electric impulses or whatever that causes the distortion...or that the sound card or audio chip set waking up from sleep and every time it does there is this loud POP?..................
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Dec 24, 2009
now what I have noticed is that the same monitors (speakers) i had with my older imac (24") are constantly making a louder "white noise" than what they used to (didnt bother me that much but i definitely noticed a louder volume of white noise). The thing that really bothers me is that whenever i scroll the mouse, or click and drag an object in photoshop or something the monitors are making a really noticeable disturbing scratching sound sound ...just cant seem to make it stop..its so annoying.. i also tried to record something and the imac recorded it in a really low volume and unstable wave (volume going up and down). so i figured well obivously the soundcard of the new imac was real bad..so got me an external soundcard, Emagic emi6|2m and i figured it would solve the problem. installed the soundcard, and played a song and suddenly a high pitch noise, kinda loud and really disturbing, started coming from the speakers.
2 seconds after i pauseded the song, the sound stopped. play the song, the noise comes, stop the song, noise stop after 2 seconds. if i open up Logic, the sound just starts no matter what. quit Logic and the sound stops. just now i opened up a youtube video and the sound just started going off even after i paused the video. now the sound comes everytime i choose the Emagic soundcard in the sound preferences. its kinda real loud and its bothering me so much, i cant seem to make it go away and definitely cant work with it. When i tried installing the soundcard on my brother's laptop windows with the same speakers, everything was fine and it played perfect with no noise. whaaaaat can i possibly do, this actually really frustrates me.... whats wrong with the computer? something with electricity?
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Nov 19, 2008
I have recently installed a version of Vista on my Macbook to use an online test-taking software that my university insists on using. Everything seems to work well. I set the default partition to OS X and can easily get into Vista if I need to (which fortunately isn't very often).
However, today I noticed an issue that is annoying. When I open Vista, the time is off by about 6 hours. It's set to Central time (where I live) and everything seems fine, but is just off by 6 hours. I didn't think anything of it, so I changed the clock to the correct time.
Then when I was finished using Windows, I restarted back into OS X and everything seemed flawless. Everything was working exactly as I left it. However, after a few minutes I noticed the clock in OS X was off by exactly the same amount I had to change it in Windows.
How could this be? I thought that by partitioning my hard drive I was unable to access the portion I am not currently using. For example, I can't save a file to the Window portion of my hard drive when using OS X. Likewise, I can't access Word files, photos, or anything on my OS X portion of my hard drive when using Windows.
How is it that when I change the time in Windows it changes it in OS X? And why are they different? Not this is a huge problem, but just a pain in the a**, and a little discomforting.
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May 15, 2009
I just tried using the boot camp assistant to partition my drive to allow 10GB for Windows. When I clicked the button to start partitioning, it got stuck there for a long time. Eventually I read in forums that this happens sometimes, and the best thing to do is to quit Boot Camp and try it again.
Well, now I have a problem. The 10GB I tried to partition is now completely missing, and the numbers in Disk Utility simply don't add up. Here's what it says:
Capacity: 232.6 GB
Available: 16.1 GB
Used 205.8 GB
This doesn't make sense to me at all. I tried verifying and repairing the disk, and it says everything appears to be okay. I open up boot camp assistant and it acts like I'm starting from scratch, just with 10GB less to work with. Where did these 10GB go that I tried to partition?? It's driving me nuts...
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Jun 30, 2009
So i shut down my uMB (2.0 GHz, 2 GB RAM, 160 GB HDD) earlier on with a DVD in the drive. I went to turn it on this evening and it wouldn't boot. I got a black screen saying, that no bootable drive was present. So after I calmed myself down from thinking I had lost my HD I tried to reboot, I held down the trackpad to eject the DVD, which it did. Then it booted fine.
My question is basically is there some way to change the boot order to prevent it trying to boot to a CD as the default?
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Sep 11, 2009
I had a problem recently where my bezel was falling off and I had problems with keyboard itself. My Applecare more than covered everything and I suspect they may have even given me a refurb Rev. A as a replacement. I am updated to 10.6.1 but everytime the computer restarts I get this weird black screen instead of the standard grey,
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Apr 4, 2010
I have a 2009 15" Macbook Unibody and for as long as I can remember the superdrive has been making a loud noise when I boot up the machine. Its similar to the noise when you insert a disk. I just figured this was the lens aligning and that it was normal. My brother however works at an Apple store and has a Unibody and his is deadly silent, he also said the laptops he had used at work make no such sound. He said as long as the drive functions then its nothing to worry about.
It doesn't happen at any other time, and the drive does indeed function perfectly fine. It just bugs me when I turn my laptop on and hear a loud freaky noise. Just wondering if anyone here has this and what they think of it?
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Sep 22, 2010
Just noticed a problem with my 2009 Aluminum MacBook Pro. Whenever i move my MacBook Pro it makes a weird creak dull ringing sort of sound. I also hear this sound when I press on the underside or grip tightly to it.
What could this be?
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Dec 22, 2009
I am not sure how to describe it properly, but since 10 minutes ago, my trackpad on my 13"mbp has been making a weird clicking sound. Normally, it makes a click which is regular, just like the store units/how it should be, however for the last 10 minutes the BOTTOM RIGHT CORNER ONLY makes a weird longer noise which I cannot properly describe. its almost like a rattling noise, or something that sounds like its breaking. had this mbp since july this year, and i do have apple care (got it on student discount price!!
Just wondering if you know what the problem is, Or if it is going to be a problem/if trackpad may be breaking Or if I rang apple/took instore what would they do. Reason why I havent immediately took it in is because if MBP could get new processors soon, I could take it in after refresh in the small chance I get a new computer replacement..........
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Jun 29, 2009
I have a 20inch imac (bought in summer 2007). I am just getting into using it as my primary computer. I was playing around in order to learn more and I found something through Activity Monitor that does not make sense to me.
In the Network Activity tab, I see "Data received:" and "Data sent:" sections. As I browse the web, these numbers change of course, but it seems that the Data received quickly reaches hundreds of megabytes! Right now, Data received: is 540MB and Data sent: is 280MB (after a reboot earlier in the day). I am not using the iMac as a server or anything and I have never seen a Windows PC sending out so many packets in the course of browsing the web. Is this in line with others' experience? Should I be concerned about a spyware program on my iMac?
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Sep 22, 2008
The mouse cursor on my iMac has a weird habit of jumping around. Eg, I'll be about to close a window, and then the cursor will suddenly jump to the bottom of the screen.This happens with both my Mighty Mouse, and a Microsoft one...
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Nov 1, 2010
My iMac has been running very very slowly for about 2 weeks. I am talking very very slowly. It seems to be processing time. I will be in word, move the cursor and it will take a few seconds to get there. Sometimes I have to wait a minute after I click on something for the cursor to catch up, and (hate to say it) even 2 minutes. That's like a millennium in Mac time.
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May 24, 2009
First of all I'm new here so just wanted to say 'Hi', its been great to see all the discussions on these forums and they help a lot with buying tips and troubleshooting so thanks.
Problem #1 I purchased a refurb 24" 2.8GHz imac early May and have been using it since then and so far other than the "normal" gradient issue and a brownish tinge around the edges of the screen it has been good.
Lately I've been using Aperture a lot and first started to notice that in some pictures especially ones with quite a bit of highlights like clouds that there are small hatch like patches in all the pics. I know it isn't the pictures but the imac screen itself as you can see it on the desktop as well. It only seems to be centralized in the upper left hand section of the screen and they seem to be lite purple/blue in color. And like I said its only in patches in certain spots on the screen. Don't know if I'm being over anal about this or is this a problem?
Problem #2 I switched to a solid blue background to check the above problem and notice that there is screen burn in of the top and bottom header in the outline of my firefox window on the blue screen. Between switching windows often and applications very frequently and not leaving the computer at all... what the heck? Not normal for imac screens is it? Heat issue causing burn in? Hasn't been an issue with any other LCD I've ever used.
By the way the imac came in a new white box and was wrapped like new in perfect condition but I popped it open without ever starting it once to make a hard drive swap and the thing was definitely a bit dusty inside so in now way was it just used for a couple weeks before being given back to apple.
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Nov 17, 2007
in the days of Boot Camp Beta (using XP and Vista back then), I'm getting NO SOUND through my external speakers, connected to line out. Sound does come through the internal speaker.
Now using XP SP2. All of Apple's drivers are installed and reinstalled.
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