Hello, I have a problem with an iMac 2017 21 inch , the imac stratet very hard after 3 - 4 times try he boots through otherwise the hangs at the loading bar (****-----------) (1/4) and then comes a black screen but the iMac is still on her hear the fan and and hard drive running. If he is then on and I play 4K videos 10 min has the GPU 58 *C. Where is the problem here?
After each restart I always have the same problems
I have also already performed a PRAM NVRAM CMS reset the OSX is also freshly installed. Other HDD & Ram I have also already tried
I have also taken out the bios/mainboard battery for 5 minutes.
And this image also comes sometimes but it stays there
After each restart I always have the same problems
I have also already performed a PRAM NVRAM CMS reset the OSX is also freshly installed. Other HDD & Ram I have also already tried
I have also taken out the bios/mainboard battery for 5 minutes.
And this image also comes sometimes but it stays there
Attachments
Last edited: