Ok here goes nothing i have a late 2009 iMac 27  11.1 intel bought it refurbished and they installed mountain lion 10.8.4 on delivery w/o disks i think ran lion orig. idk & its been all problems 10.8.5 M.L so tried Maverick 10.9 now worse please help me

ok here goes nothing i have a late 2009 iMac 27  11.1 intel bought it refurbished and they installed mountain lion 10.8.4 on delivery w/o disks i think ran lion orig. idk & its been all problems 10.8.5 M.L so tried Maverick 10.9 now worse please help me.....i still have backups of software for mountain lion 10.8 however i need to throw everything on a usb toshiba 1TB external storage for backup, plus from what ive read being i needed to try to go back and update the efi and frimware for my original model but when i found the right one it wont accept it.....and now i just tried to reinstall my mountain lion probably shoud have left in the cloud til i got backed up ...which i now needed to move my previous backed up stuff off the drive to reformat it properly as i read it being toshiba needs to be guid hard drive mac im relatively new to the whole mac thing and im just as ****** off as i was with PC ....lol i just wanna record music and have a steady workflow i do have a new 4s iphone and cloud storage but i believe my computers hacked or got malware or just ****** from incompatiable software ......and keychains not working for admin either PLEASE tell ,me what to do thx .....i will be so grateful im good with recording software and stuff bad with computers programing lol HELP me

Hardware Overview:
  Model Name:          iMac
  Model Identifier:          iMac11,1
  Processor Name:          Intel Core i7
  Processor Speed:          2.8 GHz
  Number of Processors:          1
  Total Number of Cores:          4
  L2 Cache (per Core):          256 KB
  L3 Cache:          8 MB
  Memory:          16 GB
  Processor Interconnect Speed:          4.8 GT/s
  Boot ROM Version:          IM111.0034.B02
  SMC Version (system):          1.54f36
Message was edited by: lnwko

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      MusicManager  Support
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          2% WindowServer
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      137 MB iTunes
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      82 MB Microsoft Word
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      766 MB Wired RAM
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    The short answer is maybe. How tech savvy are you? It would require disassembling the iMac, removing the LCD panel and installing your replacement components. The job is primarily complicated by the wiring being very short and needing at least 4 hands to get things neatly unplugged and replugged. There are lots of YouTube vids of these teardowns, it is doable because people do it, the question remains can you?
    http://www.youtube.com/watch?v=P70WzU0ABBs

  • HT3913 how do i add a second monitor to a late 2009 iMac 27"

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    Depends on the monitor, many support more than one connection.
    Also note that: VGA is analog, DVI is digital and HDMI is full HDMI technology. 
    For a VGA supported monitor, you will need a > Mini DisplayPort to VGA Adaptor and a VGA cable.
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    For a DVI supported monitor over 24" you will need a > Mini DisplayPort to Dual-Link DVI Adapter and a DVI cable.
    For a HDMI supported monitor, you will need a > Belkin Mini DisplayPort to HDMI Adapter and a HDMI cable.

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