iMac in reboot loop black screen and chime, keyboard not recognize.
Hi,
First of all, I have to thanks the all community on Ifixit. So many Topics helped me so much. Now I guess it is my time to ask you guys some help, please.
My iMac (VM831NV60KM) suddenly stopped working while I was using it.
Now, it’s rebooting in loop with black light, chime, fan but no keyboard recognized .
LED Diagnostic showed 4 LED lights are working. all ON, I mean.
I’m wondering if the problem can be the CPU, Logic Board, or power supply? CPU and power supply should work if the all 4 LED lights are on, isn’t? So it’s the Logic Board?
Thanks for your help.
cheers
Jim
Questa è una buona domanda?
3 Commenti
Hi @mayer any chance to have your expertise on that please ? I have read many many of your expertises and you’ve always been meticulous and pro. Some articles close to my issue have been checked for you, so I am wondering if you can help me a bit please ?
thank you jim
da Jim
What type of keyboard are you using?
da mayer
Hi @mayer thanks for replying.
I use a USB apple one. I plugged a USB computer mouse, I have seen its light. but couldn't see any lights from the keyboard, I tried with a another keyboard but not a apple one, no light as well.
so I did all the commands like, ALT, D, Cmd + R, alt + Cmd + P + R, obviously it didnt worked.
I tried to boot the imac with a usb key. everything was the same. It is just rebooting in loop.
da Jim