Currently Being ModeratedMay 29, 2013 2:04 PM (in response to SurreyWeb)
Have you tried booting into Safe Mode? Or Target Disk Mode? This might tell if it's a bad drive or not.
Currently Being ModeratedMay 29, 2013 2:21 PM (in response to Old Toad)
In safe mode it took 40 minutes to boot and was very slow.
My macbook doesn't have a firewire port so i was unable to try Target Disk Mode.
Thanks for replying,
Currently Being ModeratedMay 29, 2013 4:16 PM (in response to SurreyWeb)
Have you run all available updaters that Software Update indicates that are needed. Why I ask is this topic: iPhoto gets beachball for 20 seconds...: Apple Support Communities. May be way off base but check to see if there are any listed.
Also, do you have any anti virus software installed?
Currently Being ModeratedMay 29, 2013 6:08 PM (in response to SurreyWeb)
does the S.M.A.R.T. status of your hard drive return an OK verification?
Does anything show up during hard drive tests that indicate that your iMac's hard drive maybe failing?.
How many applications do you run simultaneously in the background while working in another application?
Do you run any antivirus software on your Mac? Antivirus software can slow down the normal operation of OS X.
Do you run any "crapware" like Mackeeper or any other type of so called hard drive "cleaning" apps?
Also, have you considered installing more RAM?
Your iMac model can take a max. RAM amount of 6 GBs
OS X 10.6, 10.7 and 10.8 use more and more CPU, GPU, RAM and hard drive resources.
OS X 10.8, alone (no other third party applications running) can use between 2-4 GBs of RAM, easily.
Correct and reliable Mac RAM can be purchased from online Mac RAM sources Crucial memory or OWC (macsales.com).
Currently Being ModeratedMay 29, 2013 6:49 PM (in response to MichelPM)
Since my iMac of this vintage died I've noticed a lot of this model having problems. I think this model is dropping at a fast rate. Sorry.
Currently Being ModeratedMay 29, 2013 7:13 PM (in response to George Chapman)
I see a lot of the aluminum style iMacs ( model and model year doesn't matter) having a variety of hardware issues and failures. It isn't limited to just your make and model year iMac.
I believe a lot of these issues and failures are due, primarily, to internal heat issues inherit in all of the aluminum case style iMacs.
While I will acquiesce to the fact that perhaps maybe these failures represent a low percentage of purchased iMacs that have these failures occur. And that perecntage is more or less represented in these support forums. The percentage could still mean tens of thousands ( or even slightly more) of iMacs affected.
Currently Being ModeratedMay 29, 2013 7:20 PM (in response to MichelPM)
If its heat, I wonder how our new very thin ones will handle it.
Currently Being ModeratedMay 30, 2013 1:28 AM (in response to MichelPM)
thanks for your responses over night.
-The mac has no updates
-SMART status is verified
-Ran the 'Apple Hardware Test' last night. Although meant to take 30 minutes. Took 1 hour and a half. When testing the logic board fans were running flat out for a minute. Before completing the test and returning...
-While in use the iMac doesn't feel that much hotter than usual.
-No antivirus installed as its a clean install of OS
-Nothing shows up to say any HDD failures
-That was just running Safari with 4 tabs and trying to launch the 'app store'. This is what i mean by after 15 minutes it just freezes all the time.
-4GB RAM is surely enough for that?! Theres always at least 1GB free and idle doing nothing! (i thought it only supported 4gb?)
Currently Being ModeratedMay 30, 2013 5:49 AM (in response to SurreyWeb)
Holds 4 but only uses 3 I think.
Currently Being ModeratedMay 30, 2013 5:56 AM (in response to SurreyWeb)
Regardless of the hardware test, if all the information you've given is accurate, and if you get the same behavior with all non-essential peripherals disconnected, the machine has a hardware fault. Make a "Genius" appointment at an Apple Store to have it tested more thoroughly. Back up all data before you go.
Currently Being ModeratedMay 30, 2013 6:07 AM (in response to George Chapman)
Tthe OP has 2008 iMac model. OWC had confirmed quite awhile ago that 6 GBs of RAM is the maximum RAM amount for these iMacs.
Only the later 2006 models could take 4 Gb of RAM and that year model could only recognize about 3.1 or 3.2 of that 4 GBs.
Currently Being ModeratedMay 30, 2013 6:10 AM (in response to Linc Davis)
I would have to agree.
The Mac isn't reporting any errors of any kind, yet based on what the OP describes, seems to be some sort of hardware related issue.
Currently Being ModeratedMay 30, 2013 6:15 AM (in response to SurreyWeb)
Your iMac model can take 6 GBs of RAM per the link I posted.
Have you tried running Activity Monitor in your Applications>Uitlities folder to see if there are any processes or runaway processes eating up all of your iMacs CPU and/or RAM resources?
That may tell us something, also.
If you do not find anything there, then I am in complete agreement with Linc Davis. You'll have to make an appointment to bring your iMac to Apple or Apple authorized repair center for a diagnosis of your issues.
Currently Being ModeratedMay 30, 2013 8:06 AM (in response to George Chapman)
I think this model is dropping at a fast rate.Like the WW II veterans.