Macbook Pro CPU Temperature Sensor Error

mmurdock95

Honorable
Apr 8, 2012
7
0
10,510
So I just bought a broken Macbook Pro 13" 2.3ghz i5 2011 thinking it was just running extremely slow and having glitchy graphics because of a failed hard drive, but after verifying the hard drive, that does not seem to be the problem. I also checked the RAM, by switching out the memory with another set, and reinstalled OSX. So then I finally ran the Apple Hardware Test, and received this error:

4SNS/ 1 /C0000008: TC0D--124

Which I looked up and it's the CPU Temperature Sensor. So I ran Fan Control and I got this read out:
left fan:6,196 RPM
Right fan:-1 RPM
Temp: -198 F

So I've reset the PRAM and SMC, and nothing has worked. Do you guys have any ideas? Is there anyway to replace this sensor? Is this the reason why my Macbook Pro would be running so extremely slow & glitchy?

Thanks!
Michael
 
Solution

abCasPeRR

Honorable
Jun 6, 2012
888
0
11,160


It is only just a "sensor" it shouldnt be causing any problem with the hardware persay. But if the sensor isnt reading the correct temps, and the CPU is overheating that could be the problem. But its definitely not at -180F.
 
Solution

mmurdock95

Honorable
Apr 8, 2012
7
0
10,510


Is there no way to override the sensor or replace it? I'm thinking it may be the sata cable to the hard drive.

I just checked the cable, no luck, still runs slow. Any ideas?
 

kronicpt

Reputable
Jun 10, 2014
1
0
4,510
Hello there.
I dont know if the original poster still has the problem, but i have it also and cant fix it..
Can you tell me the sotulion?
Thank...


 

Kclemente

Reputable
Apr 18, 2014
2
0
4,510
What I did to fix this problem is to install Macs Fan Control. It is a great app that allows you to control the speed of your fans manually or automatically based on the temperature of the sensor you choose. Once you install the app, right click on your fan and click "change control" Then chose "Sensor - Based Value" and choose a sensor. I recommend using CPU Diode, but if you cant, then something like CPU Proximity would be the next best thing. After you choose a sensor, you will now be able to change the temperature that the fan will start to increase from and the Maximum temperature your computer will go to before revving the fans up to 6200 Rpm. This is where you experiment with the temperatures until your likings. My fans start to increase from 113 F and the max temperature is 131 F. Good Luck.