You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

iMac won't boot up at all, fans running at full speed only.

My 2006 24" iMac simply refuses to start, all it does is the white LED turning on and the fans going full speed immediately after pressing the power button. No boot chime nor screen turning on either.


I'm not sure if I can reset the PRAM with a Windows keyboard, since I don't have an Apple keyboard in my possession.


Any other suggestions?

Posted on Nov 12, 2021 9:34 AM

Reply
Question marked as Top-ranking reply

Posted on Nov 13, 2021 1:34 AM

This link may help.


https://support.apple.com/en-gb/guide/mac-help/cpmh0152/mac

2 replies

iMac won't boot up at all, fans running at full speed only.

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.