Hi guys hope u all doing fine . I was hoping you can help me out to repair my bios with maybe a clean me region .The Imac chimes but i get no post or picture.
imac A1418
Serial D25K70EXDNCT EMC: 2544
Model: Imac 21.5 '' A1418 MD094LL/A
Board Model: 820-3302 EMMC: A1418...

Hi, i have this iMac issue
I've checked temperature by using macfans with no results
techtool pro shows me AMBIENT AIR TEMP FAULT
i'm going crazy, the mac runs very slowly
where i can find this sensor on motherboard?
thanks in advance

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Hi guys, I need your help again.
I have this iMac from a customer that shut down during a storm along with all the other devices in the house. In particular, the router, connected via Ethernet to the iMac, caught fire.
When I removed the screen from the iMac to check the status of the LEDs, I noticed that none of them were lit. I had a perfectly compatible and working power supply, so I tried it right away, but the problem remained the same (no LEDs). With the thermal camera, I noticed only a slight warming (32 degrees) of the NCP1605BG chip on the power supply. The rest was completely...

Hi there

An iMac A1418 late 2013 (but same problem on an A1419 too).

It works but very slow. Fan start to run after few second you turn on the iMac.

I've spoke with a friend in Apple, and he tell me about a sensor defective, but they usually replace the motherboard to fix the problem.

This iMac have no sensor (only one on the display), so I presume he means about a sensor on the motherboard.

Anyone have same problem? any idea about to solve?

Thanks and best regards.

Luke

Apple iMac A1418 21.5" Logic Board 820-3172 820-3172-A Schematic...