Fix Your Stuff Community Store

Model A1312 / Mid 2010 / 3.2 GHz Core i3 or 2.8 & 3.6 GHz Core i5 or 2.93 GHz Core i7, ID iMac11,3

382 Questions View all

Options

Head Scratcher CPU & ODD fans racing with SSD replacement

This one has me stumped but it’s late in the day.

Apple iMac "Core i3" 3.2 27-Inch (Mid-2010) Specs Mid-2010 - MC510LL/A - iMac11,3 - A1312 -  2390 16GB RAM

Installed a Samsung 860 1TB EVO

OWCINSIMACHDD09 Hard Drive thermal sensor

Blew it all out, not bad dust for one this old.

Everything worked great no problems, very fast. No fan issues. Buttoned her up. Cleaned exterior correctly.

Zapped the PRAM for final delivery. Now have racing CPU & ODD fans, hard drive fan is fine. It is not coming to me why this is happening.

Block Image

@danj any thoughts?

UPDATE 9/23/19

Opened it back up and ensured all connectors were secure. Booted up several times and no problems. Run youtube videos for two hours. Delivered machine. Customer says TG Pro reporting racing CPU & ODD fans, hard drive fan is fine.

Answer this question 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
Most Helpful Answer

Options

@mayer - Did you take the logic board out? Could you have plugged in the sensor into the wrong connector?

Block Image

Was this answer helpful?

Yes No
Score 1

2 Comments:

Logic board was not taken out. Will go back and check it both plugs are firmly inserted, This one is tough. The cables are not long enough to misplace.

by

@mayer - Very odd to say the least! This series has two independent heat sinks for the CPU & GPU so having both fail/or need fresh thermal paste would be like hitting the PowerBall twice!

I'm thinking one of the voltage sensors on the logic board is firing off telling SMC to go into Safe Mode. See if enabling TG Pro fully is able to give you any additional data or run Apple Service Diagnostics to see if something pops.

by

Add a comment

Add your answer

mayer will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 1

All Time: 71