Imac 2013 wont boot anymore

[Fietsbel]

Hi,

Last week my iMac 2013 27” crashed. Out of the blue the screen froze and didn’t respond to anything.
When I power cycled the Imac it gave an error during boot up :
“ Your computer restarted because of a problem, Press a key or wait a few seconds to continue starting up.”

i tried the recovery via the internet, but wont continue after the white loading screen and it stops responding.
I have swapped the memory with different modules , but didn’t helped either. Also changed the internal SSD and tried an external SSD with the same results.

Also tried to make a bootable USB drive , via windows (used guides) , none of them works.

I have no clue what to try next? Anyone ?

Thanks in advance

 

[Nguyen Duc Hieu]

Hi,

Last week my iMac 2013 27” crashed. Out of the blue the screen froze and didn’t respond to anything.
When I power cycled the Imac it gave an error during boot up :
“ Your computer restarted because of a problem, Press a key or wait a few seconds to continue starting up.”

i tried the recovery via the internet, but wont continue after the white loading screen and it stops responding.
I have swapped the memory with different modules , but didn’t helped either. Also changed the internal SSD and tried an external SSD with the same results.

Also tried to make a bootable USB drive , via windows (used guides) , none of them works.

I have no clue what to try next? Anyone ?

Thanks in advance

This is a hardware failure and not fixable by you.

 

[Fietsbel]

This is a hardware failure and not fixable by you.

that was not the answer i was hoping for. Do you have any idea what it could be?
Guess i have to start looking for a different iMac

 

[Nguyen Duc Hieu]

that was not the answer i was hoping for. Do you have any idea what it could be?
Guess i have to start looking for a different iMac

I understand your disappointment.
I do wish I was wrong in my statement.
When a computer went down, the user prefers it is a software issue and he/she can fix it by resetting or re-installing OS, etc.
It's not always the case. Harwares do fail from time to time.

For your symptom, it's often a failing GPU chip, which is soldered on the logicboard.
It's also maybe a blown power controlling chip on the logicboard, which powers the GPU. They fail under graphic load when the GPU chip require more current but the logicboard can't supply it enough, or when the GPU chip heats up and breaks some solder joints.

If you have the skill and equipment to do the re-work of the solder, and/or detect the failed components and replace it, you can try.

Otherwise, accept your loss and move on. If a clean USB installer can't boot your iMac completely, it's not a software/OS issue anymore.

Your LCD panel seems good and can be recycled to a stand-a-alone monitor. You can sell the PSU to buy the LCD driver.

 

[Fishrrman]

At 9 years old, it's not worth putting too much money into. I wouldn't.

Probably time to start shopping for a replacement.

If you put a new SSD into it, I would suggest that when you get the replacement you take the SSD back OUT OF the old one. Re-purpose it as a backup drive and re-coup some of your money.