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The other commenters are correct. With an iMac you need to try an external monitor to determine if it is the screen or the GPU. An Apple Genius appointment would cost you nothing and they could test it for you if you don't have access to another monitor and/or the right cables.


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Despite what Weird Al would have you believe, it is no longer "All about the Pentiums" (jury is out regarding whether the 'Benjamins' are still a relevant unit of currency). The answer depends very heavily on the exact specs of each system, but I would expect you to notice better performance out of the laptops for a few reasons: The Core i series all ...


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If the hard drive replacement method has continued to fail, I'd guess that either: A) The hard drive is not actually broken, or B) The computer somehow makes the hard drive go bad. I've taken that model of iMac apart before, and the inside is fairly cramped for space. That leads me to think that your processor may overheat and "hang", causing it to go black, ...


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Open up the terminal and type man getloadaverage To quote the man page: The getloadavg() function returns the number of processes in the system run queue averaged over various periods of time. Up to nelem samples are retrieved and assigned to successive elements of loadavg[]. The system imposes a maximum of 3 samples, representing averages ...


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This question is a year old but I am going to answer it incase someone else runs into this same issue. I just bought a mid 2011 27" refurb iMac from IBM and they scrubbed the HD completely. This eliminated pretty much every option there was for installing an OS on the Mac. The problem is that when these models shipped they had either Lion (10.7) or at ...


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Looks like your Keychain has corrupted. Do you get this error "Preferences Error: Could not load Accounts preference pane." I have a solution here Search for "Keychain Access" and a window as shown in the picture above would appear. Select the account which is troubling you. Delete it/them and restart. Moreover you can review any used accounts and remove ...


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My solution was the following. Yosemite 10.10.3 7/15 Goto System Preferences / Displays Menu up to select "Window" - select the display you wish to rotate. On my Dell Monitor - (model 1908FP) there was an option to "Rotate" toward the bottom.


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Your machine is now 10 years old, so there's definitely the risk that your PRAM backup battery has "worn out" and is nearly dead now. The life expectancy for these kinds of "coin cells" is normally about 10 years. So if you disconnect your Mac from the power supply for an "extended time" you risk that it fails to back up the PRAM. A battery loses its charge ...


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The "update" from MadCatz didn't help, the most recent version of their driver supports OS X 10.9 (not 10.10). I believe that driver is version 1.1.69. Whatever it is, the most recent version does not work at all on 10.10 and doesn't even install on 10.11.


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It should be possible to add a microphone, you just need the correct adapter. See this answer I posted to a similar question - I believe the same will apply in this case.


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You may write this script and it will work for not big number of files, but entire external hard drive backup to ftp server only using bash is a hard task. Because of possible connection problem, because of namespace problem. (Some file names on Mac ) may be impossible to store on your ftp server. If you backup small number of files ~100mb just zip them and ...


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Apple says it does: iMac (21.5-inch, Late 2009) - Technical Specifications Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display A well made Mini DisplayPort to DisplayPort cable should work just fine.


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This may not answer your question directly, but it is a solution.... I am not a fan of doing dev work on my production Mac. I also don't see any value in setting up a MAMP server because it will be a very rare occurrence that you get a hosting provider with MAMP setup. Chances are it will be LAMP and by a very small margin, WAMP. Why not set up a LAMP ...


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This is a workaround. I have a similar problem to the OP. I found that I can make the display sleep and stay asleep via the command line: pmset displaysleepnow In contrast, the external display wakes immediately after sleeping when I use the hot-corner method. Since display sleep problems can have many causes, my general advice is to try different ...


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What worked for me was to go to Store>Sign Out Once I was signed out, I was able to sign back in and purchase/install apps correctly. Not sure why this happened, but it fixed it for me.


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Try this ( http://blog.krzysztof-turek.com/apple-imac-8-1-freeze-problem-solution-en/ ) I had the same issues ; display frozen but pointer moving but no kernel panic on a mid 2007 imac 2.0 ghz and running osx 10.8 Mountain Lion. the kext swap worked for me . Good Luck


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I installed 2x 2GB DDR3 1333 PC3-10600 into a late 2009 mac mini. Running 10.10.2, which struggles on the default 2GB. It started up fine, and apps were so snappy, but then the crashes started. The machine is completely unstable, with kernel panic errors every 30 odd seconds forcing a restart. Sadly the original 2GB RAM has gone back in. I'd recommend ...


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Just for grins and giggles... Did you verify that your cable and network port are good? First thing to try is moving your connection from whatever port on the switch it is on to another. Sometimes a port on the switch just may be bad. You will also want to verify the cable. If you have access to another computer or a laptop, remove the patch cable ...


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I agree with bmike that since we don't know what the nefarious people have you do, it's next to impossible to diagnose the problem here. However, I am going on the premise that you can turn on your computer but you just cannot log in - meaning enter your username/password - as you described. To reset your OS X password without an CD you need to start up in ...


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At first glance, I am wondering why you are using an HD 4000 driver for an AMD Radeon HD 6970M chip. Have you tried downloading and installing the AMD Drivers? http://www.amd.com/en-us/products/graphics/desktop/6000/6970


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In addition to the above, other software solutions are Jinx, who offers a product called ScreenRecycler. Couple this with a VNC client like TightVNC or JollysFastVNC (from Jinx), you pay once for the main computer, and can use any number (one at a time) of other computers as a remote display. This software is currently in Beta, and I found that after 5-10 ...


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Without knowing the steps you did, it's hard to guess what the villains had you do to your computer. Why not power it off and then get some help. You'll need to know the following things to make a good decision on what's next: When is the last time you backed up your Mac and is that backup still viable? How much time/budget do you have to learn how to ...



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