IMac :: 27" I7 With 2TB Hitachi Humming?
Sep 10, 2010
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.
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Aug 16, 2010
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?
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Sep 19, 2010
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.
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Nov 13, 2009
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?
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Mar 31, 2009
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?
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Jan 27, 2010
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?
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May 28, 2007
im wondering is it possible to install a hitatchi 1tb drive in my imac g5 because i think read somewhere that the hitatchi 750gb drive wasnt 1,5gbs Compatable i dont know if this applies to the 1tb drive
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Aug 19, 2008
I'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?
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Nov 8, 2010
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.
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Mar 15, 2008
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.
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Jan 23, 2010
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.
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Mar 14, 2009
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.
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Mar 20, 2010
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.
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Sep 9, 2009
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.
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Apr 4, 2012
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)
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Sep 9, 2008
I'm gonna replace my Powerbook's hard drive myself.Any reason to choose a Seagate over an Hitachi?
Does Seagate make better HDs?
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Apr 14, 2009
..by the power unit at the back of the machine - where the power cord goes in.
I happened to be switching out displays at the back of my MP today. Could hear the fan at the lower back portion of the machine (as normal). but this time could also hear a very slight electrical hum just by the power unit -- is this normal (the hum) does yours have this hum?
I never heard it before. guess my head was never that close to it when the MP was on the floor. but since i moved it to the top of the desk my head is closer to it when I switch out the DVI ports
Trying not to be obsessive. I'll run before the white coats turn up by the front door
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May 6, 2012
I purchased a 21" iMac a couple of months ago. Today it started making constant buzzing/humming noise. It's not really loud, but it is noticeable and annoying after a while. It stops if I put the computer in sleep mode or turn it off, but it starts back up the moment I turn it back on again. It sounds like it is coming from the bottom of the screen near the speakers. I have tried adjusting the brightness and volume, but to no avail. I also tried lifting the computer off the desk to see if it was just vibration, but that did not make a difference either.
Info:
iMac, Mac OS X (10.7.3)
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May 11, 2012
I have a 2006 White Intel Imac and I recently replaced the Superdrive with a non apple Panasonic Superdrive Model: UJ-85J-B from a used Acer Laptop. The replacement drive has no sensor circuit board. After putting it back together there was a loud humming noise and I assumed it was the new drive but when I took it out and started the Imac without it the noise remained? Now I am thinking it is the fan just below where the Superdrive sits? I blew out as much dust as I could from this fan and around the bottom of the case and that made the noise just a little less annoying. It sounds like it is about to take off like an jet airplane?
Info:
iMac, Mac OS X (10.6.8)
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Jun 24, 2014
There is a loud and really annoying humming & static noise when I connect my charger to my MBP. The humming only comes out of the headphones jack, and not the MBP speakers. This really cripples me in my work as I am a music producer.
Mp3 of the noise: [URL] ....
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Aug 24, 2010
I'm looking to replace my Hard Drive in my 2.4 Unibody Macbook and stumbled across this Hitachi drive on Newegg. I've read great reviews for the Travelstar 7k500 in Macbooks and other Hitachi drives, however the 7K500 isn't available on Newegg anymore.
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Mar 15, 2008
Ok... so... tonight my most badass girlfriend actually BOUGHT me another 1 TB drive as a surprise for the Mac Pro!!! God, you gotta love that girl! This replaced the stock 320 Gig drive which I HAD previously been using for Media only (Itunes library and the like) with a 1TB Western Digital Green drive (Best buy w/ coupon for $206).
Well, I thought I'd devise a little benchmark to test just how crazy fast the Hitachi 1TB that I use as a boot drive is vs the original drive that Apple shipped (320 Western Digital) and others in my system...
So this is what I did. Might be right, might be wrong, don't really care... but I THINK this is a great representative of total, complete "speed and throughput" of a hard drive.
I created a folder called "Test Folder" on my Hitachi 1TB (Boot Drive). I added to this folder the following subfolders / files:
1 Folder Entitled "Movies" containing 12 Large Files = 8.5 Gigabytes
1 Folder Entitled "Guns n Roses" containing 67 Medium Files = 455 Megabytes
Copied / Added the OS X "Extensions" Folder containing 271 Small Files = 208 Megabytes
Copied / Added the OS X "Frameworks" Folder containing 57,263 Tiny Files = 1.49 Gigabytes
This gave me a total of 57,617 Files of VARYING Sizes totaling 10.64 Gigabytes.
I then proceeded to DUPLICATE this folder on each of my drives... which I believe shows a great overall speed indicator...
"read/write/in-cache/out-of-cache/tiny to huge file size"
And as it is doing all of the reading / writing on the SAME DRIVE... that eliminates any drive compatibility problems, slow to fast drive copy speed interpretation, bus issues, etc.
And here are my results... pretty stunning if you ask me... I think Apple really stuck some DOG SLOW drives in there as stock. I honestly think they should be ashamed of themselves.
Time to Duplicate Folder on Stock Hard Drive: (Western Digital 320 Gig WD3200AAJS) = 9 Minutes, 08 Seconds
Time to Duplicate Folder on Hitachi 1TB Replacement: (Hitachi HDS721010KLA330) = 5 Minutes, 35 Seconds
Time to Duplicate Folder on Western Digital 1TB Drive: (Western Digital WD10EACS-00ZJBO) = 6 Minutes, 20 Seconds
Time to Duplicate Folder on Older WD 500GB Drive: (Western Digital 5000AAJS-32YFA0) = 7 Minutes, 18 Seconds
Time to Duplicate Folder on Older WD 400GB Drive: (Western Digital D4000KD-00NAB0) = 8 Minutes, 52 Seconds
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Mar 28, 2010
My friend is stuck on this drive .
But he asked me to find out if it had the G sensor or not. Obviously Macs have there own sensor so he wants to get one without the sensor so it doesnt interfere.
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Mar 29, 2010
I currently have the seagate 7200.4 500gb but i noticed my load cycle count is already at 8000 after only 3 weeks of use. So I think Im going with the hitachi 7k500. if this has the g sensor built in? if so does this interfere with my macbooks g sensor?
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Sep 1, 2008
I've had my imac for under two years, and just recently I noticed it making an odd humming/buzzing sound at times. It's not the normal sound you hear when your hard drive is working hard, it's definitely different. It's not the speakers either, it happens whether they are on or muted.
My suspicion may be that it has something to do with the power. That's because I've been bug testing a mac beta game, and it often crashes my computer, and I have to manually turn off my computer by holding down the power button until it cuts the power.
Does anyone know why this may be and how I can prevent it/fix it?
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Jun 7, 2012
My 20.5 inch 2.7GHz iMac is about a year old and has recently started making a low humming/buzzing noise from the top right corner, near the SuperDrive bay. The top of hte iMac feels quite warm when it makes the noise and usually stops if I hold my hand on top of the computer. Is this something I should be contacting AppleCare about?
Info:
iMac, Mac OS X (10.6.8), 2.7GHz, Core i5, 4GB RAM
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Jan 21, 2010
I've read all the horror stories about how the mid-09 MBP hard drive firmware update and non-Apple 7200 RPM HDDs don't get along. Most of these seem to be related to the use of a SATA 3.0 drive (which shouldn't matter, since mechanical hard drives can't even make use of the full SATA 1.5, but I digress).
I'm about to buy a new Mac, and, even though the Macbook, which doesn't seem to have these problems, would suit my needs just fine (my camcorder is USB and my digital cameras both use CF), I might spring for the MBP anyway (likely to get the additional 2" of screen space on the low-end 15", which has the closest resolution to what I am used to on my outgoing T60).
Obviously, I could pay Apple to upgrade to one of their 7200 RPM drives, assuming I get the 15". But that seems silly, since I can buy, for less than $100 (i.e., half the upgrade cost from Apple, plus I keep the old drive), a Hitachi Travelstar 500 GB 7200 RPM SATA 3.0 drive. My questions are:
1) Has anybody successfully upgraded to such a drive (or its 320 GB little brother, which is otherwise speced the same) in a mid-2009 MBP?
2) If so, did you have to downgrade the firmware as suggested in these forums?
3) If so, did you have to "tweak" the drive in any fashion to make it work?
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Apr 13, 2010
Today I was transferring files from my unibody Macbook Pro over to my 1TB 7200RPM SATA 3.0 Gb/s Hitachi external hard drive. The files were almost transferred when I accidently knocked the drive off of my bed and onto the carpet floor which disconnected the drive's USB cable from my laptop.
Now when I turn the drive on it continuously clicks and beeps and my macbook won't recognize it. I found this video on youtube and it shows exactly what my external drive is doing.
[URL]
I have a ton of important data on this drive and I really don't want to lose it. What should I do? Could I take the drive to my nearby Apple Store?
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Feb 24, 2009
I just installed a new Hitachi E7K1000 1GB HD into my Powermac G5. I then found out my Powermac only uses drives at the 1.5GB transfer speed rate... i checked the specs for the hitachi drive at OWC and it says it is 3.0GB, not a 1.5/3.0GB hybrid. Could this cause trouble? The drive seems to be working fine so far... but does this mean this hitachi drive is not compatible with my mac?
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Apr 2, 2012
So I tried upgrading my hard drive to a new Hitachi HD and when I tried using the mac OS X DVD it doesn't find the hard drive in the destination page. I formatted it to mac os extended journaled with 1 partition and nothing I'm stuck. Here is a picture of the disk utility page I took a screenshot of.
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