My new iMac 27" (i3, 3.2GHz) is not so quiet as my previous iMacs -
I can hear a low humming noise! Not very loud, but I don't like it.
It grabs my attention...
It sounds like a fan motor or a transformer.
I can also feel a corresponding vibration.
Is this normal now? Does anyone else have this problem too?
Would you recommend to return/exchange this iMac?
Last week I recieved my 27" iMac i7 2,93GHz with the 2TB Hitachi Drive.
I ordered this drive because it was said in this forum that this one should be silent.
Now, during access it is not really silent, but thats no problem
What bothers me more is, that there is a permament silent hum. An I can fell this vibration even on the stand (hopefully this is the correct term, I am from Austria, so english is not my native language).
And this vibration is also forwarded onto the table, but it is not really feelable on the table.
So my question is: Some say that their iMac is "dead silent". Mine isn�t, I also can here the fans silently, but that doesn�t bother me either. But this humming is somewhat distracting or annoying.
Maybe I am just to "picky", but do you really have iMacs which are almost inaudible?
Because I do not have any other problems I am not sure whether I should ask for a replacement.
After returning 4 21.5" imacs with yellow screens and hard drive noise, I decided to try a 27" and finally a beautiful screen with no problems, no hard drive noise. I was very happy...untill I started hearing a humming noise that sounds like it is coming from the power supply. The noise stops when I put it in sleep mode. I tried a bunch of things to determine if it was the fans or hard drive and that was not it. I am pretty sure it is the PSU humming all the time. This is the first imac with a perfect screen and now it is humming. I am so frustrated.
What should I do? Have the power supply replaced or return it for another one and take the chance of getting one with a yellow screen? I am still within my 14 days of original purchase date.
I bought iMac 27" from local apple store two days ago. Everything is fine execpt that there is some weird sound coming from the computer when the screen turns darker to save energy. Once I move my mouse to activate the screen, the sound goes away. I am saying the sound is so load, but it is still noticable and a little annoying in a quite room.
Update: I search "screem+humming+dim" and turn out actually a lot of iMac owners have this problem. Is it a technical issue Apple fails to resolve in general?
There is a new humming sound coming from my parents iMac, I think it's the processor cooler but I'm not sure. It could be the hard drive as well, I just know it kicks up sometimes when there is a lot of activity. The problem is they don't do a lot on the computer so it scares them.
They are convinced that it is going to die because it's soo old, I think under two years, but this is the second computer they owned. The first was the first 20" G5 iMac that, instead of turning it off the correct way, they just unplugged from the wall outlet. Needless to say it died, but they think it was because their son in law used it too much. I try to tell them that it's because how they turned it off, but they didn't like their son in law, who is now an ex-son in law, so they blame it on him. Yes, I know, my parents are the last people to own a computer.
They also don't want to spend any money on their computer, so worse case scenioro, taking it to the Genius Bar without this computer being under warranty and having them replace the processor fan and/or the hard drive, what would it cost? I think it might just require a new fan for the processor cooler, but what if they need to replace a lot more?
so i love my new 27"; it's simply fantastic.... so far. i encountered a problem when i plugged in a 1/8 to RCA to go to my surround sound system. There is a loud humming sound coming from the speakers when i connect it. i tried to wiggle it and push it further to no avail. the sound was still there. i tried using another cable and the sound was still there. then i tried plugging in my headphones, and they WORK FINE! what the hell is going on and how do i fix this problem?
View 1 Replies View RelatedI'm new to this forum and I just bought a new iMac 20" 2.66GHz, I turned on my computer and noticed a weird sound (buzzing or humming noise) not loud but loud enough to here I notice when I messed with the Brightness it went away is there something wrong with that or is that a known issue?
View 16 Replies View RelatedSpecifically the hard drive fan runs at 1600rpm and the optical fan always runs at 1350 rpms.
Those fans run faster than my 2007 24" 2.4ghz iMac.
Somehow I figured with the cooler running ddr3, 9400M igpu and better cpu architecture that this new 2009 20" iMac would be dead silent because the fans would barely have to run. Or at least be less noisey.
But that's not the case.
Anyone have any fan speeds to report on new iMacs? Particularly the 20" model?
Download the iStat Pro widget and report your fan speeds today!
This is my first led-backlit display and the first big glossy display I have used. First of all, the display is amazing because of how accurate it is and I love using it. Then to the question:The display is sort of alive, stick with me i'll try to explain it as best as I can, english is not my native language
It kinda makes this very little brightness pumping that old crt tv's and monitors did. Same kind of effect but in a lot smaller effect, but you can sorta notice it's there. I have had none of those display image disappearance/flicker problems at all, display is working very well but I'm wondering if this kind of effect is normal with LED displays and does the glossy display enhance it/let more through? I'm thinking this might add to eye strain in long use but not sure(just like crt's did).
rite as some will already know i have took back my 27" iMac a total of 6 times and now i am on my 7th (4th one had screen issues), after actually accepting the "belly rumbling" "popping" noise and just getting on with the i5 experience, i thought i would actually contact Seagate direct on the actual matter for the rest of people on here who have doubt about there seagate hard drives.So i ring the operator i told him the whole story his first reply was sorry we dont support apple hardware! my response was "respected but the hard drive used is a seagate product"! he then replied saying sorry sir i misunderstood and quickly responded how can i help. I then repeated the problem and he asked for the HDD serial number, i was then very specific on the the noises we are all hearing and he made me repeat what i said a good 3 times so he had a very good understanding (in other words he did take this all seriously) he then said he was going to talk to the relevant person and put me on hold....10 minutes later he's back on the phone and he again asked me a final time! (ffs) to explain the noise he then quickly said in response the hard drive is supposed to make that noise. he named it the barracuda in seagates terms.
View 24 Replies View RelatedLately I've been feeling my 24" Alu-iMac (Prev. Gen 3.06) and it's feeling really hot. I got iStats and here are my temperatures:
CPU A: 108 F
Airport: 140 F
Ambient: 75 F
GPU: 122 F
GPU Diode: 131 F
GPU Heatsink: 122 F
HD Bay 1: 136 F
Memory Controller: 117 F
Optical Drive: 120 F
Power Supply: 165 F
Macintosh HD: 135 F
Fans:
CPU: 1200 rpm
HD: 1198 rpm
Optical Drive: 698 rpm
I have a '09 24in iMac and the HD temp is in the 120F range. CPU is over 100F, is this normal?
Also I see processes running like ps, configd,windowserv..., pmtool......What is this stuff?
I created a ubuntu live disc and tried it in my iMac. So I went into system preference=> start up disc and changed the boot order in order to test the disc. Now when I booted my computer this morning it automatically went to booting from the disc even when the disc was not in the drive. I thought it should have just gone back to booting from the hard drive. Does anyone know what I have to do in order to put the boot order back to mac hd?
View 1 Replies View RelatedI downloaded and installed Temperature Monitor and iMac Fan Control - mainly for observational purposes and not for toying around with the fan speeds and I've got some questions. Mind you, I haven't tampered at all with the fan speed settings, just installed Fan Control. Here are my readings (while browsing the internet with Safari and doing a chat via iChat):
Fan Speeds:
CPU fan (desired) 1300 RPM / (current) 1530 RPM
HD fan (desired) 2100 RPM / (current) 2099 RPM
DVD fan (desired) 1300 / 1298 RPM
Temperatures:
CPU Heatsink: 92F
Internal HD: 108F
Internal DVD: 95F
GPU Heatsink: 107F
Are these, under the circumstances, normal readings?
Safari locking up originally. I would get beach balls pretty often, and simple tasks like opening a new tab would take a long time. One day last week I noticed it took like 30 minutes to index in spotlight..just random weird things like that.Yesterday, I got home and the computer had the little loading icon on the middle of my desktop and was completely locked up. The computer wasnt doing anything other than running normal processes.
View 14 Replies View RelatedJust got my 27" stock imac from an online retailer today. 3.06Ghz c2d etc. and absolutely love it except one thing. The HD seems to be much louder than my 24" imac that was basically inaudible. This HD on the 27" is a Seagate ST31000528ASQ 1TB, that seems to have an almost constant low buzzy, vibration-like sound that you can hear on the top right in the back when I don't have music playing? Anyone else experience this? Is this normal and is there any way to make it quieter?
View 4 Replies View RelatedI wonder if this is normal:
My iMac 27" i7 with a 2TB Hitachi disk seems to vibrate. It is so strong that it also makes my desk vibrate a little. If I hold tight on the desktop, it stops. However, the noise/hum is clearly audible when I put the iMac on the floor, for example.
Apple is happy to replace it, but am I too picky? Anyone else with the same?
(FWIW, I'll describe the noise as if you mount a hard drive in a cabinet, and it isn't really fastened/isolated well enough.)
I tried the smcfancontrol and checked the fans, and its not them, the noise is constant even if I set them to max or min. And it disappears completely when the disk has spun down.
My Macbook Pro, Macbook, or other apple hardware I got with a HDD does not make this kind of noise.
How silent is your iMac compared to your macbook/macbook pro?
Newbie here, It has just come to my attention that my 27" iMac wakes up during the night. It is always put to sleep at night rather than turned off. My parents are staying for the weekend & sleeping in the same room as the imac, & mentioned this morning that screen turned on a couple of times during the night. I looked at the time machine back ups & found it had made 2 during the night.
View 2 Replies View Relatedafter months of going back and forth I finally went with an entry level iMac which is perfect in every way. I think... I don't remember the start up time taking almost a minute to cycle from the blank gray screen to gray screen with the Apple on it. Tuesday and yesterday it started up much faster (at least 30 seconds). ere's my some of the hard drive info:
WDC WD5000AAKS-40V6A0:
Capacity:500.11 GB (500,107,862,016 bytes)
Model:WDC WD5000AAKS-40V6A0
Revision:05.01D06
Serial Number: WD-WCAWF5070764
Native Command Queuing:Yes
Queue Depth:32
Removable Media:No
Detachable Drive:No
BSD Name:disk0
Rotational Rate:7200
Medium Type:Rotational
Partition Map Type:GPT (GUID Partition Table)
S.M.A.R.T. status:Verified
The only thing I've done since Tuesday is add two songs in iTunes to test the cd-rom drive. I just ran the extended Apple Hardware Test and everything is fine. Given that my 20" refurb died within 3 months and I returned 2 iMacs prior that one, I'm a little nervous. Is this normal for a Western Digital hard drive to take nearly a minute start up from gray screen to grey screen with the apple?
iMac makes normal startup after had been put into sleep..One strange behaviour can be observed with iMac Late 2013.At the end of day the user puts the mac into sleep.On next day pushing the power button is necessary to activate the mac.
The main point is that iMac starts up as it was shut down at the previous day(this is conclusion based on screens shown after mac activation).
User expectation is, that on next day when activating it the mac show screens as it was leaving sleep instead of showing screens typical for normal startup (after hard power down).
sometimes but not always my mac pro starts to hum.
its on hardwood floors, and if i just gently move it a nudge, it stops humming.
is it the floor or an issue.
I replaced my main drive, the 320GB with a 750GB Samsung F1. It seems to work fine. However it seems to have set up some sort of sympathetic vibration in the Mac Pro, which sounds like Hummm Hummm Hummm. Where as all the other things that cause noise in the case are a consistant and steady tone, this one is not. It's driving me nuts. Is this normal to be making this noise? I've tried it in different bays and it makes no difference.
UPDATE I've taken all the drives out except the F1, as I installed another DVD drive and three HD's and the noise has gone, so I'm now going to load each drive and review.
What causes a harddrive to make a humming type vibration. Is that a drive getting old and need to be swapped? its annoying because my mac pro tower is silent otherwise.
The noise started about a month or so ago but I had this drive for a few years now.
If the machine is on after it was a sleep for about an hour the noise dissipates a little.
Over the last few months there have begun to be hundreds of blue horizontal lines running across the screen and the sound fragmented, with the Mac crashing over 5 times a day. Normally, I would restart and the problem would be OK for a while.
However, now when I turn on hundreds of horizontal black/green lines appear in colums, the normal apple symbol comes up with the spinning loading item. Then a blue screen will appear and the normal log on profile selector doesn't appear. Then after a while the blue screen is covered the thousands of these black/green lines.
I just purchased 2 1TB Barracudas and upon installing them (bays 3 and 4) I noticed a faint but definitely audible (and aggravating) humming noise that comes in a cycle of about 5 seconds.
It sounds identical to this video (made by someone else, but with the same drive) but my cycle is a bit longer:
[URL]
I'm wondering if this is an issue with the drives or my installation? I mounted them tightly. I tried staggering the new drives with my old drives in terms of bay order to no avail.
Has anyone experienced this? The price on these drives is killer ($129) but I'll be returning them soon if I can't kill this noise.
My Mac Pro 8 Core 2 x 2.8 GHz Quad-Core Intel Xeon with Leopard 10.5.8 started making a humming noise about a month ago. The humming noise is very consistent in pitch and is always humming whenever the computer is on, except for when sleeping.
View 1 Replies View RelatedDuring the boot-sequence the screen of my Imac 27" flashes green (once), then returns to normal. This does not happen when I boot my Windows (Bootcamp) partition, so I assume this is some kind of OSX driver error. This started to happen only after I installed the latest patch (10.9.3). How to get rid of it ?
Info:
iMac, OS X Mavericks (10.9.3)
Upon start up my screen goes to normal gray w/apple logo and spinner then goes black. Cursor is visible and still is moveable but nothing else. I safe booted and bar came up also but then back to black screen.
Info:
iMac, Mavericks upgrade
My Powerbook G4 recently started doing the HD clicking and squealling noise. So I changed the HD and everything worked great for about a day. Now there is a new Humming/Ticking noise coming from the area where you plug the power supply in.
If i tap in that area, it will go away for a couple minutes and then it comes back again. Sometimes it will just go away on it's own for a few minutes too. It doesn't change if I unplug the power or anything.
Yesterday I started up my MacBook Pro that I've only had for about 9 months. I immediately noticed that there was a barely audible buzzing / humming sound coming the inside of the laptop, most likely in the fans. I don't know how long this has been going on, and I really don't know the cause of it. So is this something I should be worried about (the sound is barely audible)? Or is this something that happens after prolonged use of the laptop?
Info:
MacBook Pro, Mac OS X (10.7)
