iMac 24 "(2006) begins with Pink/White pixelated screen"

Hi, my iMac 24 "2006 frozen while watching a YouTube video. Its done but the video froze. Had to force a shutdown. Handed on to a screen to Pink/White pixelated patterns. It starts, Apple logo, spinning wheel, then a blip, but just a pixelated pink and white screen blank. He went 3 - 4 (screen pixelated) Apple hardware test, 4 passes a Memtest, I got in Single User Mode (screen black green pixelated), Verbose Mode (screen pixelated), Disk Mode target (no problems in this mode) and Boot Mode target (no problems in this mode) with an another iMac. Fix problems with the HARD drive and also repaired permissions. All my files are intact and my OS x (Snow Leopard) seems well intact. It won't start any disk inserted in the drive Superdrive. I can eject the disc with a re - start to hold the eject button on the keyboard or the mouse. I get the startup chime, no beeps, no codes and only get the kernel panic when I try to boot from a CD/DVD disc. Do NVRAM/PRAM rested and reset the SMC have swapped the RAM with new RAM without result. It shows a ZERO GPU issues or fail before that. But he began to act more slow when t switched to firefox as my browser. With only 3 GB of Ram, not surprising. Other odd and random questions like losing all my personal settings one night a week earlier, as well as all my applications at rest again. As when I opened iTunes I got the Welcome screen and start again with iTunes. My files were intact, but even some of my emails had to be searched and imported again. Things like this. I thought of something was about to give... and it was probably the case. I'd hoped to Ram instead of the GPU problem. I do not suspect the GPU at the moment, even if many tell me that it's probably the GPU.  The only thing I found was under "Graphics" bad Apple hardware test it reads 'Unknown Video' in the profile section. No other beeps, errors, codes, etc. other than the screen pixelated and don't pretend to begin the OSX. I know it's 10 years old, obsolete, etc... but he has run nearly impeccable and had a very easy life so far.  My next step is to try an external monitor and see what happens. I need to find and get the right adapter for this first. It's a bit frustrating that I read some say HDD, another RAM, many GPU, some the OSX... but it has passed all Tests of material thin Apple. No error codes, beeps, blinking, nothing. Any other ideas? Thank you.

DWD

To connect an external monitor to this iMac, you'll need a Mini DVI to... Adapter (DVI, VGA, or HDMI) .

See > https://www.google.com/search?q=mini+dvi+adapters

Tags: Mac

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