Fix Your Stuff Community Store

A1418 / EMC 3069 / 2017 / 3.0 GHz quad-core i5, 3.4 GHz quad-core i5 or 3.6 GHz quad-core i7 Processor. Released June 8, 2017.

174 Questions View all

Options

My iMac lags (Freezes) a lot while using.

Hi Guys,

I am a repair technician and i have an iMac 2017 4K 21.5”.

It freezes a lot, like every-time i use it starts lagging, every 3-5 seconds it gets freeze for 1 second and mouse pointer gets freeze to one position and after a second it find it somewhere else.

I have replaced the Main Logic Board and also tried checking with another Known Good HDD, this is happening in recovery mode also and also when i try to do the internet recovery mode.

I am not really able to understand whats the problem.

Answered! View the answer I have this problem too

Is this a good question?

Yes No
Score 0
Add a comment

1 Answer

Filter by:
Most Helpful Newest Oldest
Chosen Solution

Options

You could have either a software level issue or your system is running in Safe mode as a sensor is telling SMC to go into this condition.

I would run the built-in diagnostics to see if anything shows up their. Reboot the system and hold the D key. If an error pops tell us what is said.

If this is a software issue you could have malware or you have some app consuming the processor threads. Open Activity Monitor and see what the top %CPU load is by clicking on that column.

Was this answer helpful?

Yes No
Score 3

1 Comment:

Thanks Dan,

I even installed the latest OS and checked it was the same, i have checked with Known good HDD and Memory and still the issue was the same. But then i replaced the wifi card and issue is resolved now.

Anyways great Thanks for your answer.

by

Add a comment

Add your answer

Chetan Jain will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 1

All Time: 248