Distinct Vibration on 24" imac 2.93 w/ nVidia

I have a 3 week old imac 2.93 GhZ intel core 2 duo 24" nVdia Geforce 120 graphics
today i noticed a persistant and distinctive vibration coming from the display.
I cant pinpoint the source, but its definitely coming from the monitor.
When the computer is in sleep mode, obviously the vibration goes away, but when its on, in most cases the vibration is quite evident.
Adjusting the angle of the display, and moving items on my desk has had no effect. it seems as though the vibration is coming from the hardware/case of the monitor itself.
Has anyone else experienced this? its a knocking sound vibration, and i might actually be better described as a faint rattle.
Has anyone else experienced this issue? I will call Apple on monday, but was hoping someone here might shed some light on what might be causing this.

I had feeling that my 500GB WD is having a bit of vibe. So I turned AAM on and it seems to me it helped a lot. AAM - advanced acoustic management, I have turned it on by boocamping into Win and than turned on with HDTune pro.
Anyway, please let us know what was your outcome.
br
m.

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Scary "rattling / vibrating" noise with iMac DVD drive

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I also have this problem with my 2.4ghz, 24" iMac. It started a few months back and it didn't seem to affect the media I stuck into it and for about 75% of the time the vibration was minimal. Now some DVD media are getting stuck in the drive and it takes a lot of tries with the eject button before enough of the DVD or CD shows itself to pull it out ... otherwise it gets sucked back in and I am back trying again.
What has just freaked me out is that some of the discs I have just burnt, when inserted, ask whether I want to write them i.e thinks they are blank ... when they go perfectly on my powerbook or my wife's G5 iMac. I just thought I would check out the support forums for a lead, but doesn't seem like a regular fault so its off to the repair shop under warranty (up to a week wait around here).
So can't help that much iDijkman ... I suppose get it fixed while you still have some warranty.

Yet another problematic iMac 24" - 3.06Ghz - Nvidia GeForce 8800 GS

My iMac 24" (Early 2008) - 3.06Ghz - Model A1225 with the Nvidia GeForce 8800 GS card does not work properly.
I purchased my machine in September of 2008 and the issues began about four years later, in late sprin of 2012.
When the screen/display/video problems started, I got blue or pink screen startup failures, beachballing, crazy static lines through the screen, sometimes beeps or screen flickers. All of this started four years after buying it—and it is NOT unreasonable to expect a $3200 machine to last far more than four years.
When my machine stopped working I spent hours over doing diagnostics, reseating the RAM, a reinstall of the OS, all to no avail.
Digging for information on the Internet pointed to so very many other owners of this machine type having the same problem! But the cost to repair the card, as reported time time again, was close to $900. Angry and bitter, I boxed up my machine and started saving—and went back to using my 20” white G5 iMac (no problems with this machine, thank heavens!).
Is there any recall movement in effect? I don’t want to have to pay 900 or so dollars to repair a video card that is inherently defective!
Nvidia recently admitted to having produced lots of faulty Geforce cards for their laptops but also stated that there could be other products with similar faults (http://www.sec.gov/Archives/edgar/data/1045810/000119312508145974/d8k.htm). They have set aside about $150 million to redress the matter.
There is a UK forum dedicated to helping laptop owners with problematic Nvidia cards get help and they have started fielding quesitons from iMac owners, as well (
http://www.nvidiadefect.com/apple-imac-24-early-2008-imac8-1-defect-geforce-8800 -gs-t3813.html).
Is anyone else an unhappy owner of an early iMac 24" (Early 2008) - 3.06Ghz - Model A1225 with the Nvidia Geforce 8800 GS?

After a lengthy long-distance call to Apple Tech Support, both agents I spoke to told me that this is the first time they have heard about this issue. There are no repair protocols in place for this make and model of iMac with these issues.
I asked the senior of the two again, just to clarify, if this was the first time he heard about such a problem and he said yes. I then asked him if he knew the subject was being discussed here on the Apple Support Communities forum and he said that this forum is for users and is not used by them. I asked him if he thought it would make sense for Apple Techs to be up to date about common repair issues being discussed on Apple's own forums, and he said that he can't speak for Apple. I then asked him his opinion about the matter and he said, "I suppose so."
The "suppose so" line told that that I would get nowhere with him. I just hope the authorized repair center I visit is more up to date about this problematic iMac build that Apple's own Tech Support staff are.
Shame on you, Apple!

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I just purchased a new 2009 3.06 iMac (stock) and upon hooking up the Mini DisplayPort to DVI adapter to a DVI to HDMI cable and plugging it into the HP w2338h it comes up at the proper 1920x1080 resolution but the iMac will only drive it Interlaced and there is no option for Progressive. Plugging this same monitor into a much older Macbook Pro via just the DVI-HDMI cable brings the display up at the proper 1920x1080 progressive.
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Message was edited by: The Doctre

I found a cheaper solution than buying a Dvi kvm. Like you I also only got the interlaced option in system preferenceS; lets just say that it looked really bad. The solution is to go into the display settings and change to a resolution like 1600 x 900 that has progressive support. Now choose "Show displays in menu bar" option. Once that is done go the menu bar and choose the display icon (it looks like a monochrome fullscreen display) click on it. and choose 1920x1080 60Hz. Whoa-la, it is now in progessive.
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Message was edited by: SDark

Imac i7 32gb ram nvidia 680 mx for AE color grading etc?

I am considering The new Imac, 3.4GHz quad-core Core i7 Nvidia GeForce GTX 680MX with 2GB mem.
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I will be using mostly hdslr .h264 footage.
Thanks in advance.

680MX
http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-680mx/specifications
1536CUDA Cores
720Processor Clock Tester(MHz)
92.2Texture Fill Rate (billion/sec)
Memory Specs:
2500 MHzMemory Clock
GDDR5Memory Interface
256-bitMemory Interface Width
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GTX 680 GPU Engine Specs:
http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-680/specifications
1536CUDA Cores
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1058Boost Clock (MHz)
128.8Texture Fill Rate (billion/sec)
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2048MBStandard Memory Config
256-bit GDDR5Memory Interface Width
192.2Memory Bandwidth (GB/sec)
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what did it cost??
just curious

"Being that is not a user upgradeable part, I'd avoid doing it until after my warranty ran out."
Yep I know! Apple service can change the graphic card without avoiding warranty
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Scott is correct -- this is not normal for the '09 i7 (I have one and it's very quiet). As for the i3 the speed depends on what you intend to do. The i7 is a great machine for apps that require a lot of horsepower like video encoding. If you are doing mostly web surfing and document prep the i3 is probably more than enough.

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I would be so thankful of anyone who can tell me where i can get the RAM bc the store that sells it does not have it.
I have had universally poor results when trying to get Mac RAM from brick-n-mortar stores. I've never been disappointed with RAM I bought on-line from resellers that get good marks around here. I've used Data Memory Systems for about four years and the only problem I had was with a weird RAM module incompatibility issue with an old PowerBook. They satisfactorily resolved that.
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My iMac is too obsolete to use anymore.
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I am trying to find out what is the best system for me and would appreciate any feedback that anyone can give me!
Basically I am looking for a mac that will run Final Cut 5 quickly and well, but am unable to afford a high end G5 powermac. Therefore I need to look at macs around the £1000 or lower mark.
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Intel-based products is all that Apple sells now. They ceased to manufacture PowerPC- based Macs with the intro of the Intels in JAN 2006. The only PPC Macs for purchase today would be very old stock from a 3rd party seller, used or possibly refurbished.

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I'm having trouble installing windows 7 ultimate (64 bit) on my imac. it's the 20 inch model from early 2007 (EMC 2133) if that helps.
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Does anyone have any ideas?

I was having trouble myself with my iMac regarding a black screen and a blinking cursor after installation where the iMac would just stay idle. Below are solutions for all iMacs that have a problem with their graphics cards (ATI & NVIDIA).
Some people complained that they can't find the "repair your computer" from windows DVD. In all cases repeat steps below:
*Solution 1:*
If you have a secondary monitor, connect the monitor to the computer before you install Windows 7. Then, you will be able to complete the setup process. After Windows 7 is installed, you can install an updated driver that corrects the eDP issue through Windows Update, Boot-camp or Snow Leopard DVD.
*Solution 2*
When doing the repair windows step, it didn't work asking to provide a repair disk or something. I then clicked install driver, browsed to the C:\Windows\System32\Drivers folder and then renamed the ati*.sys file (only one file!) to ati*.renamed (NVLDDMKM.SYS or ATIKMDAG.SYS depending on your iMac)
Once installed, pop in the Snow Leopard OS DVD and run setup to get all the drivers working.
This can also be done with an NTFS plug-in (Tuxera, NTFS-3G, Paragon, MacFuse, etc.) that will allow you to see the files on BOOTCAMP on OS X. Follow the same path and rename the file.
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1. Put the Windows 7 installation disc in the disc drive, and then start your computer.
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Code: Bootrec.exe /FixBoot
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Video became corrupted, and underneath the garbled sceen appeared the grey "restart your computer" message.
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The only errors I see before that:
"GFX0: family specific matching fails"
"Previous shutdown cause: 3"
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Update:
Booting in verbose mode showed no obvious hints about the crash.
Booting in safe mode (shift key at boot) made no difference.
Ran the apple Hardware Test, no failures neither in basic or extended tests.
Screen remained and is garbled.

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Message was edited by: morph21

The server and type of connection are also important. I get pretty bad latency over WiFi, for example, and the Gul Dan server has been really slow of late. I have 20M down / 5M up to the house and 801.11g router. With my 2007 MBP over wireless (good connection), I generally get in the mid 40's to 50's in the Outlands, but got 6 when I logged in last night (by the time I logged out, it had crept up to about 35).
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Distinct Vibration on 24" imac 2.93 w/ nVidia

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