imac 21 2011 109-C29557-00 vga common issue

[rookieme]

So I've noticed that some imac 21" 2011 vga has a common issue that make the system reboot of just shut down.
This is not a gpu chipset issue, cannot be fixed by replacing chipset and sometimes it appears after replacing chipset [due to usually faulty 216-0810005].
So far I have tried reballing vrams, replacing Q601,Q611 & C838.
Has anyone faced and fixed this issue?

[piernov]

Re: imac 21 2011 109-C29557-00 vga common issue

Did you confirm it is indeed caused by the graphics card?
https://logi.wiki/index.php/iMac_A13..._Graphics_card

[rookieme]

Re: imac 21 2011 109-C29557-00 vga common issue

Yes as I've seen the issue to follow the card to a second imac

[thodoris10]

Re: imac 21 2011 109-C29557-00 vga common issue

Yes as I've seen the issue to follow the card to a second imac

Did you manage to fix the problem ?
I 'm just facing the same issue for a second time with this specific card

[rookieme]

Re: imac 21 2011 109-C29557-00 vga common issue

this kind fix is waste of time, no hope when issue occurs
after so much time no progress with figuring out the issue