Skip to main content

Help! My mac 'Pops' off at switch on!

My white un-web cam iMac takes four attempts to start up, making a 'pop' noise when failing, but then works well although can 'pop off' when woken from a long sleep.

Is it a bad power unit?

Please help!

Answered! View the answer I have this problem too

Is this a good question?

Score 1
Add a comment

2 Answers

Chosen Solution

Yes, My first guess would be the power supply. Lay it down flat on its screen.. remove the back.. usually if a power supply is "popping" it will have a distinct smell.. also looks for any buldging or swollen capacitors.

Was this answer helpful?

Score 4

2 Comments:

I'm pretty sure it's the power supply because the original power supply that comes with this model is notorious for failure after long use.

by

Add a comment

Could be, but could also be a bad hard drive, use disk utility to verify your hard disk if that's failing, a failing drive can make popping noises.

Was this answer helpful?

Score 0
Add a comment

Add your answer

Big Dan will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 2,128