====== iMac reparieren (iMac Intel 27" A1312 EMC 2429 Mid 2011) ======

  * [[https://www.youtube.com/watch?v=9vPM41ZmLos|Video: iMac 2011 Grafikkarte reparieren]]
  * https://de.ifixit.com/Store/Mac/iMac-27-Inch-Mid-2011-Graphics-Card/IF174-054-2
  * https://www.youtube.com/watch?v=PaRtza6h9mQ
  * https://www.macuser.de/threads/imac-27-2011-ati-radeon-hd-6970m-2gb-defekt.795888/page-1
  * https://www.macuser.de/threads/bootprobleme-mit-display-problemen-17er.797714/
  * https://agile-websites.de/artikel/der-mac-ist-tot-der-mac-ist-tot.html

:!: Fix für Macbook Pro 2011 (internal Graphics), funktioniert nicht auf dem iMac 2011:
  * https://apple.stackexchange.com/questions/267581/gpu-problem-boot-hangs-on-grey-screen/295805#295805

:!: andere MXM-Grafikkarte im iMac (Geforce GTX 765m)
  * https://www.ebay.com/itm/9R3F5-DELL-ALIENWARE-M17X-M18X-NVIDIA-GTX-765M-2GB-GRAPHIC-CARD-VIDEO-CARD/162776542264
  * https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/page-28#post-24436097
  * https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/page-30
  * https://www.macuser.de/threads/imac-mid-2011-27-grafikkarten-upgrade.827855/page-2

  * https://de.ifixit.com/Anleitung/iMac+Intel+27-Inch+EMC+2429+Display+Austausch/7551
  * https://de.ifixit.com/Anleitung/iMac+Intel+27-Inch+EMC+2309+or+2374+Grafikkarte+Austausch/9553

  * https://www.die-oswalds.de/blog/2019/10/06/der-2011er-imac-und-das-leidige-thema-mit-der-grafikkarte/
  * https://www.die-oswalds.de/blog/2019/12/20/der-2011er-imac-und-das-leidige-thema-mit-der-grafikkarte-teil-2/

:!: VBIOS ändern (?)
  * https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/page-90?post=27485731#post-27485731
  * https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/page-152?post=28046843#post-28046843
  * https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/page-144?post=28011314#post-28011314
  * https://hardforum.com/threads/nvidia-firmware-flashing-utility-for-linux.1838661/
  * https://www.reddit.com/r/linuxquestions/comments/74d3bx/update_gpu_bios/
  * https://computeco.de/DyingLight.html
  * https://de.ifixit.com/Antworten/Ansehen/296157/What+GPU's+are+compatible+with+iMac+27%22+2011#answer420333

==== Reparaturshops ====
  * http://www.smartmod.de/shop/smartphone-iphone-ipad-kaufen/gebrauchte-macs-kaufen.html
  * http://apfelstudio.net/amd-grafikkarten-bug-apple-macbook-imac-2011
  * https://www.apfelwerk.de/apple-werkstatt/
  * technikfreund
  * TMC TEC Berlin
  * Witcomp
  * http://dtec24.de

==== Apple Hardware-Test ====

Sofort nach dem Neustart des Systems die Taste ''D'' drücken:

Fehlercodes:

  * 4ETH: Ethernet controller
  * 4IRP: Main Logic board
  * 4MLB: Logic board controller
  * 4PRC: Processor
  * 4HDD: Hard disk
  * 4MHD: External disk
  * 4YDC: Video card
  * 4SNS: System sensor
  * 4MOT: Fan motor
  * 4MEM: Memory module
  * 4AIR: AirPort wireless card

Bei Sensor-Fehler: "I" -Strom, "T" -Temperatur, oder "V" -Spannung

  * A: Ambient air sensor
  * B: Battery
  * C: Central processors (CPU)
  * D: DC (direct current)
  * e: PCI-express slot
  * F: FireWire port
  * G: Graphics processor (GPU)
  * H: Hard disk
  * h: Heat pipe (heat sink)
  * L: LCD display
  * M: Memory or memory riser boards
  * m: Misc. (i.e., battery chargers)
  * N: North bridge (motherboard controller)
  * O: Optical drives
  * P: Power bus
  * p: Power supply
  * s: Palm rests for laptops
  * W: Airport Wi-Fi card

4SNS/1/1/4000000 TL0P-130: Sensorfehler im LCD Temperatur Sensor eines Laptops