I have an Imac 2.8 GHZ Intel core duo, a month ago during booting instead of the apple, appear a world picture, since Is this normal?? also i feel the computer much slower since then, does any body know what is this?

I have an Imac 2.8 GHZ Intel core duo, a month ago during booting instead of the apple picture appears a world picture and takes a lot of time to start, Is this normal?? also I feel the computer much slower since then, does any body know what is this? How can I fix this? Thanks

Gomtomsyetm preferencs and make sure that you HDD is selected as the start up disk. Then start up using your install disc and run disk utility and repair the drive just in case something has gotten corrupt.

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I have an iMac 1.83 ghz Intel Core Duo. The sound is suddenly intermittent, the magic mouse erratic. I'm running OS X 10.6.8. How do I correct this? Will Lion run on this machine?

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Will Lion run on this machine?

Unless you have an intel core 2 duo processor or greater, you can not run Lion
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Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor
2GB of memory
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I have an old imac 1.83 GHz Intel Core Duo, that still runs on OS X 10.4.11, can I upgrade to Mountain X lion? Is my Iphone with Ios6 will work on it?

1. No.
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(70502)

My Imac 2.0 GHz Intel Core Duo keeps powering off

Hi all,
I have a 20inch 2.0 GHz Intel Core Duo (Imac 4.1), Over the last few weeks the Mac would just power off on the odd occasion when using Apeture, I put this down to being the just overworked for processing picture. This seems to have been getting worse and kept occurring more and more often. Light Internet browsing was fine..
I decided after some time to replace the 2gb memory i had to see if that would fix the issue, this seemed to work for a few days then the same issues returned.
I now seeing this issue occured just by opening Safari and decided to rebuild the Imac, I completed the Snowleopard install and all seemed ok for a day then it re-occurred again and seemed to be worse, I then removed the 2gb memory and just kept with the 512mb as when bought... Still it keeps powering off. I have moved to different power sockets and still see the same issues.
Please note in order to power the Imac backup up I have to leave the power out for about 20-30 minutes, If i leave the power plugged in it never boots backup up.
I now decided to even revert back to Lion OS, but it just powers off during the install...
I thinking it sounds like a Power supply issue but would like confirmation before I take it to a repair shop..
cheers
Dan.

As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
You are now in a perfect position to do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
It is the 5 second timing that initiates the reset.
Here is a link to a Widget to monitor your temps and other operations:
http://islayer.com/apps/istatpro/

I have a mac book 2 GHz Intel core Duo can i update that so i can buy mountian lion

Hi there
Hope this doesn't sound silly. I have a mac book 2 GHz Intel core Duo can i update that so i can buy mountian lion.
am i able to do this?

Core duo, not core 2 duo? Not with a core duo.
Upgrading to Mountain Lion - http://www.apple.com/osx/how-to-upgrade
Mac OS X: System requirements for Mountain Lion (10.8) - http://www.apple.com/macosx/specs.html
Lion and Mountain Lion application compatibility - http://roaringapps.com/apps:table
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Imac 2.4 ghz intel core duo identification 7,1,

I want to upgrade my hard drive. what is the largest one I can get?

Sidney,
I have the same iMac 7,1 and have upgraded the internal drive to 3TB.
Yes, you will need suction cups. You can source them from an auto parts store. The suction cups used to pull out dents from car panels will work to lift the glass from your iMac. This is the most daunting task, but in the end was simple enough with suction cups.
You can search google for instructions on installation of the HD once you have lifted the glass.
Good luck.
Sam.

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you computer is too old, it can not run 10.7., 10.6.8 is the limit.

IMac CPU3.06 GHz Intel Core 2 Duo, 8GB, Extremely slow and repeatedly "out of Memory" since migration from Mountain Lion to Mavericks

Dear Apple Support Community.
As mentioned by a number of users reporting the same problem, my 2009 iMac CPU3.06 GHz Intel Core 2 Duo, 8GB RAM, has become extremely slow and repeatedly "out of Memory" since it was migrated from Mountain Lion to Mavericks (OS 10.9 then OS 10.9.1).
I have already run CleanMyMac, deleted 5GB of useless stuffs, which did not translate into any improvement. Following the advices collected in other Apple Support Community threads, I have applied EtreCheck the outcome of which is provided below.
For information, I have also upgraded my 2011 MacBook CPU2.3 GHz Core i7, 8GB which became only a bit slower than before, sometimes freezing which it almost never did before. However, I am used to the fact that Mac get usually slower and more prompt fo freeze after upgrading to a more recent OS.
Both my 2009 iMac and my 2011 MacBook have F-Secure installed. So the problem with the 2009 IMac is unlikly to be due to the presence of F-Secure. Interestingly, the few abnormalities found by Etrecheck were exacly identical before I ran CleanMyMac. There are two more findings (mentioned below) since I ran CleanMyMac on the 2009 iMac, which again didn't improve the problem.
So please find below the details of the EtreCheck experience and some additional measurements made with iStat while running EtreCheck:
Hardware Information:
iMac (24-inch, Early 2009)
iMac - model: iMac9,1
1 3.06 GHz Intel Core 2 Duo CPU: 2 cores
8 GB RAM
Video Information:
ATI Radeon HD 4850 - VRAM: 512 MB
Audio Plug-ins:
BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
AirPlay: Version: 1.9 - SDK 10.9
AppleAVBAudio: Version: 2.0.0 - SDK 10.9
iSightAudio: Version: 7.7.3 - SDK 10.9
System Software:
OS X 10.9.1 (13B42) - Uptime: 0 days 2:40:57
Disk Information:
WDC WD1001FALS-40K1B0 disk0 : (1 TB)
EFI (disk0s1) <not mounted>: 209.7 MB
XooS5 HD (disk0s2) /: 999.35 GB (189.85 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
OPTIARC DVD RW AD-5670S
USB Information:
Apple Inc. Built-in iSight
Canon CanoScan
Apple Computer, Inc. IR Receiver
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
FireWire Information:
WD My Passport 071D 800mbit - 800mbit max
EFI (disk1s1) <not mounted>: 209.7 MB
disk1s2 (disk1s2) <not mounted>: 2 TB
Boot OS X (disk1s3) <not mounted>: 134.2 MB
Thunderbolt Information:
Kernel Extensions:
com.f-secure.kext.fsauth          (1.0.0d1)
Problem System Launch Daemons:
[failed] com.apple.wdhelper.plist [REMARK: this abnormality appeared only after running CleanMyMac. It does not appear on my 2011 MacBook]
Problem System Launch Agents:
Launch Daemons:
[loaded] com.adobe.fpsaud.plist
[invalid] com.bjango.istatlocaldaemon.plist [REMARK: this abnormality pre-existed to running CleanMyMac. It appears also on my 2011 MacBook]
[loaded] com.f-secure.fsavd.dbhelper.plist
[loaded] com.f-secure.fsavd.plist
[loaded] com.f-secure.fsmac.firewall.plist
[loaded] com.f-secure.fsmac.fsupdated_guts2.plist
[loaded] com.f-secure.fsmac.licensetool.plist
[loaded] com.macpaw.CleanMyMac2.Agent.plist
Launch Agents:
[loaded] com.babylon.activation.plist
[loaded] com.bjango.istatlocal.plist
[loaded] com.f-secure.relauncher.plist
[loaded] com.f-secure.trasher.plist
User Launch Agents:
[loaded] com.adobe.ARM.[...].plist
[loaded] com.google.keystone.agent.plist
[loaded] com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist
[loaded] com.macpaw.CleanMyMac2Helper.scheduledScan.plist
[loaded] com.macpaw.CleanMyMac2Helper.trashWatcher.plist
User Login Items:
iTunesHelper
Dropbox
F-Secure Anti-Virus for MAC
3rd Party Preference Panes:
Flash Player
Internet Plug-ins::
FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6
Default Browser: Version: 537 - SDK 10.9
AdobePDFViewerNPAPI: Version: 11.0.04 - SDK 10.6
AdobePDFViewer: Version: 11.0.04 - SDK 10.6
DivXBrowserPlugin: Version: 2.1
Flash Player: Version: 11.9.900.170 - SDK 10.6
OfficeLiveBrowserPlugin: Version: 12.2.8
Google Earth Web Plug-in: Version: 6.1
QuickTime Plugin: Version: 7.7.3
iPhotoPhotocast: Version: 7.0
User Internet Plug-ins::
Picasa: Version: 1.0
Bad Fonts:
None
Old applications:
None
Time Machine:
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
XooS5 HD: Disk size: 930.71 GB Disk used: 753.90 GB
Destinations:
XooS5 TM [Local] (Last used)
Total size: 2
Total number of backups: 32
Oldest backup: 2013-09-15 01:11:39 +0000
Last backup: 2013-12-07 12:48:45 +0000
Size of backup disk: Too small. Backup size 2 < (Disk used 753.90 GB X 3)
Time Machine details may not be accurate. All volumes being backed up may not be listed.
REMARK: The above finding is unlikely to be accurate. In fact, my Time Machine is supported by a 2TB WD My Passport Studio external HD connected with a Firewire 800. As mentionned, only 754GB of the 2000GB are used.
Top Processes by CPU:
5%          backupd
5%          Mail
5%          WindowServer
3%          Finder
3%          Dropbox
Top Processes by Memory:
1.60 GB          mds_stores REMARK: this item was marked in red in the outcome of EtreCheck, so I assume there is something wrong there
82 MB          Finder
74 MB          Mail
49 MB          softwareupdated
49 MB          Dropbox
Virtual Memory Statistics:
97 MB          Free RAM
1.21 GB          Active RAM
1.19 GB          Inactive RAM
1.21 GB          Wired RAM
1.83 GB          Page-ins
36 MB          Page-outs
Please find now some additional measurements collected with iStat while running EtreCheck:
Practically:
The iMac can work slowly with only one software e.g. either Mail or Safari or Firefox, but still the below "out of Memory" message occurs about every 3 minutes.
Aperture has becomre to slow to be useable
If trying to write a mail (with Mail) while Safari or Firefox is open, then the "out of Memory" message occurs about every 20 seconds so I need to check on "Resume" several times per minute.
Conclusions
From the above, unless anyone in the Apple Support Community proves to be able to identify a specific problem leading to a way to find a cure, I tend to conclude that Mavericks is not suitable for computers operating with a Core 2 Duo CPU even with a 8GB of RAM.
Unless I missed something, I did not see any warning from Apple Computer Inc. informing their customers they should refrain from upgrading Core 2 Duo Computers.
The only solution I see so far is to downgrade from Mavericks to Mountain Lion. And the Apple Support Community would confirm that it is the only solution, I would appreciate to get your guidance on how to proceed.
Intended action plan
Migrate the above 2009 iMac to a 2014 Mac Mini Server operating on Mavericks to ensure that no data may be lost while downgrading to Montain Lion.
Provided the above downgrading operation is successful, assign this 2009 iMac to partial retirement e.g. Mail, Skype, iTunes and DVD player.
In advance, I would like to thank the Apple Community for helping me either i) finding a cure to the problem, ii) or confirming that Mavericks cannot operate properly on Core 2 Duo computers, iii) and in such a case, guiding me on how to downgrade to Mountain Lion.
Yours sincerely
Core

... what anti-virus would you recommend using?
Use what is already included with OS X. It already includes everything it needs to protect itself from viruses and malware. Keep it that way with software updates from Apple.
A much better question is "how should I protect my Mac":
Never install any product that claims to "speed up", "clean up", "optimize", or "accelerate" your Mac. Without exception, they will do the opposite.
Never install pirated or "cracked" software, software obtained from dubious websites, or other questionable sources. Illegally obtained software is almost certain to contain malware.
Don’t supply your password in response to a popup window requesting it, unless you know what it is and the reason your credentials are required.
Don’t open email attachments from email addresses that you do not recognize, or click links contained in an email:
Most of these are scams that direct you to fraudulent sites that attempt to convince you to disclose personal information.
Such "phishing" attempts are the 21st century equivalent of a social exploit that has existed since the dawn of civilization. Don’t fall for it.
Apple will never ask you to reveal personal information in an email. If you receive an unexpected email from Apple saying your account will be closed unless you take immediate action, just ignore it. If your iTunes or App Store account becomes disabled for valid reasons, you will know when you try to buy something or log in to this support site, and are unable to.
Don’t install browser extensions unless you understand their purpose. Go to the Safari menu > Preferences > Extensions. If you see any extensions that you do not recognize or understand, simply click the Uninstall button and they will be gone.
Don’t install Java unless you are certain that you need it:
Java, a non-Apple product, is a potential vector for malware. If you are required to use Java, be mindful of that possibility.
Disable Java in Safari > Preferences > Security.
Despite its name JavaScript is unrelated to Java. No malware can infect your Mac through JavaScript. It’s OK to leave it enabled.
Block browser popups: Safari menu > Preferences > Security > and check "Block popup windows":
Popup windows are useful and required for some websites, but popups have devolved to become a common means to deliver targeted advertising that you probably do not want.
Popups themselves cannot infect your Mac, but many contain resource-hungry code that will slow down Internet browsing.
If you ever see a popup indicating it detected registry errors, that your Mac is infected with some ick, or that you won some prize, it is 100% fraudulent. Ignore it.
Ignore hyperventilating popular media outlets that thrive by promoting fear and discord with entertainment products arrogantly presented as "news". Learn what real threats actually exist and how to arm yourself against them:
The most serious threat to your data security is phishing. To date, most of these attempts have been pathetic and are easily recognized, but that is likely to change in the future as criminals become more clever.
OS X viruses do not exist, but intentionally malicious or poorly written code, created by either nefarious or inept individuals, is nothing new.
Never install something without first knowing what it is, what it does, how it works, and how to get rid of it when you don’t want it any more.
If you elect to use "anti-virus" software, familiarize yourself with its limitations and potential to cause adverse effects, and apply the principle immediately preceding this one.
Most such utilities will only slow down and destabilize your Mac while they look for viruses that do not exist, conveying no benefit whatsoever - other than to make you "feel good" about security, when you should actually be exercising sound judgment, derived from accurate knowledge, based on verifiable facts.
Do install updates from Apple as they become available. No one knows more about Macs and how to protect them than the company that builds them.
Summary: Use common sense and caution when you use your Mac, just like you would in any social context. There is no product, utility, or magic talisman that can protect you from all the evils of mankind.

I have recently purchased a refubished imac 3.06 ghz intel core 2 duo and I'm trying to install logic 7.2 on this machine. I get half way through the content install and it crash's . I have it installed on an older Imac and it works fine. Is there any e

I have recently purchased a refubished imac 3.06 ghz intel core 2 duo and I'm trying to install logic 7.2 on this machine. I get half way through the content install and it crash's . I have it installed on an older Imac and it works fine. Is there anybody out there that can help me figuire outhow to make this work?

See:
Mac Maintenance Quick Assist,
Mac OS X speed FAQ,
Speeding up Macs,
Macintosh OS X Routine Maintenance,
Essential Mac Maintenance: Get set up,
Essential Mac Maintenance: Rev up your routines,
Maintaining OS X,
Five Mac maintenance myths, and
Myths of required versus not required maintenance for Mac OS X for information.

IMac 3.4 GHz Intel Core i7, running Lion 10.7.3, won't recognize external speaker jack, any suggestions?

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Thanks "a brody," my mistake, I was mistaking the "audio in" jack for a speaker output jack. I have some Klipsch ProMedia 2.1 speakers with a built in amplifier that I am using and they sound beautiful. I do have them plugged into the correct jack, but was thinking there was a speaker out put and headphone out put.
Thanks again for correcting me, I feel much better now that I know my brand new iMac isn't defective, lol.

IMac 3.06 GHz Intel Core 2 Duo with 12gb of RAM running very very slow.

My late 2010 iMac 3.06 GHz Intel Core 2 Duo with 12gb of ram is running very slow. It takes a very long for the computer to boot with the desktop taking ages to fully load. Applications are also taking an unholy amount of time to load with the spinning wheel always appearing through out use, and they often crash or don't respond and close during use. I'm talking applications like Word taking 3 minutes to load and getting the spinning wheel when font size is tried to be changed and crashing and closing if a large volume of text is attempted to be pasted into a document.The computer is also failing to shut down properly just staying on a blue screen. I recently wiped and completed a fresh install however the issues came back.
As you can imagine after spending so much on the computer I'm not best pleased about these issue, I've spoken to the apple staff in my local store by they weren't very helpful and seemed to no little about computers and the so called "Genius" who I spoke to about my issue was a joke, repeating himself and talking utter rubbish, while I understand you need to look at a computer to get a real picture of an issue, some advice could of been provided. I haven't got time to take the computer to the store at the moment and get a technician to look a it, so I was wondering if anyone else had experienced these issues and knew what caused the fault, and that way if possible I can repair the issue myself.
Thanks in advance for any help on the issue it’s much appreciated. At the moment I'm pretty close to ditching the thing and buying an Alienware!

See:
Mac Maintenance Quick Assist,
Mac OS X speed FAQ,
Speeding up Macs,
Macintosh OS X Routine Maintenance,
Essential Mac Maintenance: Get set up,
Essential Mac Maintenance: Rev up your routines,
Maintaining OS X,
Five Mac maintenance myths, and
Myths of required versus not required maintenance for Mac OS X for information.

My iphone 4 doesn´t connect thorugh Wi-Fi, apple replaced my phone for a new one and it has the same problem. I have an ipod and it doesn´t have this problem. Does any one know what to do?? Thanks

My iphone 4 doesn´t connect through Wi-Fi, Apple replaced my phone for a new one, but the new one has the same problem. I have an ipod third generation and it doesn´t have this problem. Having compared both working at the same time, the iphone alsways lags behind or doesn´t even connect to the internet via Wi-Fi. Does any one know what to do?? Thanks

Have you ever checked to see if there is an update for your router? If yes, then power off router. Then on iPhone go into settings and do a reset network settings. Power router back on, and try connecting phone to router.

HT5429 For the new Map in ios 6 , for United Arab Emirates ... Directions Not Available , whenever you make route between 2 places .. Does any body know how we can get the Update work ??

Does any Body know how we can solve this problem ...
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Thanks for your interest.
Excuse my ignorance as I'm not sure what you meant by "1 of 5" optimization. Did you mean median of 5 ?
Regarding swapping pointers, yes it is common sense and rather common among programmers to swap pointers instead of swapping large data types, at the small price of indirect access to the actual data through the pointers.
However, there is a rather unobvious and quite terrible side effect of using this trick. After the pointer array is sorted, sequential (sorted) access to the actual data throughout the remaining of the program will suffer heavily because of cache misses.
Memory is being accessed randomly because the pointers still point to the unsorted data causing many many cache misses, which will render the program itself slow, although the sort was fast!!.
Multi-threaded qsort is a good idea in principle and easy to implement obviously because qsort itself is recursive. The thing is Multi-threaded qsort is actually just stealing CPU time from other cores that might be busy running other apps, this might slow
down other apps, which might not be ideal for servers. The thing researchers usually try to do is to do the improvement in the algorithm it self.
I Will try to look at your sorting code, lets see if I can compile it.

I have an Imac 2.8 GHZ Intel core duo, a month ago during booting instead of the apple, appear a world picture, since Is this normal?? also i feel the computer much slower since then, does any body know what is this?

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