MacBook Pro Early 2011 High CPU Temp. and Screen Flicker Problem

[domdom83]

Hi,
I am having an issue with my MacBook Pro since last week. My CPU runs up to 95-96 degrees and when I try to launch an application the app freezes due to this high temp.
When I restart I sometimes have the grey start screen with the apple logo that shows up some scan lines... After displaying this grey apple logo I remain stuck in the grey screen. The fans then run at high speed and the mac shuts down 2 minutes later.
Then when I restart there is no problem. It starts perfectly and really quickly too.
For the moment I have a CPU temp of 56.
When I use a software as Webex the screen starts to flicker and I have to restart then.
Is it a problem with the logic board? Do I need to apply some thermal paste.
For the moment I am using my mac without any problem.
What could it be?
That would be great if I could get some help to solve this out

DC

 

[negativzero]

Hi,
I am having an issue with my MacBook Pro since last week. My CPU runs up to 95-96 degrees and when I try to launch an application the app freezes due to this high temp.
When I restart I sometimes have the grey start screen with the apple logo that shows up some scan lines... After displaying this grey apple logo I remain stuck in the grey screen. The fans then run at high speed and the mac shuts down 2 minutes later.
Then when I restart there is no problem. It starts perfectly and really quickly too.
For the moment I have a CPU temp of 56.
When I use a software as Webex the screen starts to flicker and I have to restart then.
Is it a problem with the logic board? Do I need to apply some thermal paste.
For the moment I am using my mac without any problem.
What could it be?
That would be great if I could get some help to solve this out

DC

Looks like a heat problem. Take it in for AppleCare service.

 

[domdom83]

Looks like a heat problem. Take it in for AppleCare service.

Thanks for the reply negtivezero but do you think applying some thermal paste could help?
Some guy told me I should change the logic board.

 

[justperry]

Thanks for the reply negtivezero but do you think applying some thermal paste could help?
Some guy told me I should change the logic board.

If you startup from a *cold boot* does this ever happen.
I mean the grey screen at startup.

*cold boot* = startup from minimum 1 hour off.

If the above is true you have hardware issues, reapplying thermal paste could help but I doubt it.

Do you have kernel panics, if so post a kernel panic log.

 

[negativzero]

Thanks for the reply negtivezero but do you think applying some thermal paste could help?
Some guy told me I should change the logic board.

You could try swapping the thermal paste, but personally I wouldn't bother if you have AppleCare. Just bring it in and let Apple fix it.

 

[domdom83]

If you startup from a *cold boot* does this ever happen.
I mean the grey screen at startup.

*cold boot* = startup from minimum 1 hour off.

If the above is true you have hardware issues, reapplying thermal paste could help but I doubt it.

Do you have kernel panics, if so post a kernel panic log.

I don't have any problems when I do a cold boot.
Where can I find those kernel panics logs?

Thanx justperry

 

[domdom83]

If you startup from a *cold boot* does this ever happen.
I mean the grey screen at startup.

*cold boot* = startup from minimum 1 hour off.

If the above is true you have hardware issues, reapplying thermal paste could help but I doubt it.

Do you have kernel panics, if so post a kernel panic log.

Here are the panic logs: Last occured on the 04/22.
My mac had the problem I described earlier this morning.

 

[justperry]

Here are the panic logs: Last occured on the 04/22.
My mac had the problem I described earlier this morning.

One of them seems to be Graphic (GPU) related, not this does not necessarily mean it is hardware, I do see quite a few of these lately, could be OS X graphic driver related.
The best way to test out if it is indeed the OS which causes this problem is to install a temporary OS on an external and boot from it.
The best way is to install a different OS version than you have now, best is the original OS since this is I think the least to cause problems.

Even a USB stick (Minimum 8 GB) would do although it will be slow.
If it is stable there it is the OS causing the panics.

 

[domdom83]

One of them seems to be Graphic (GPU) related, not this does not necessarily mean it is hardware, I do see quite a few of these lately, could be OS X graphic driver related.
The best way to test out if it is indeed the OS which causes this problem is to install a temporary OS on an external and boot from it.
The best way is to install a different OS version than you have now, best is the original OS since this is I think the least to cause problems.

Even a USB stick (Minimum 8 GB) would do although it will be slow.
If it is stable there it is the OS causing the panics.

Thank you very much! I will install Snow Leopard on my external Drive and boot on it to see if I have any problem.
I will keep you updated if it's so.

 

[justperry]

Thank you very much! I will install Snow Leopard on my external Drive and boot on it to see if I have any problem.
I will keep you updated if it's so.

Use the System disk if you have them, as far as I can see yours needs 10.6.6 minimum.

 

[domdom83]

Use the System disk if you have them, as far as I can see yours needs 10.6.6 minimum.

I will install SNow Leopard this afternoon.
I have noticed a strange behaviour on 10.8.3 though.
I turned on Photo Booth earlier and it switched to the AMD Radeon Graphics. The screen then started messing up being fractioned in 2 half.I closed Photo Booth it switched back to the Intel graphics and everything was ok then.
For the moment I have temperatures of 48-52 using safari, itunes and Skype only.

 

[justperry]

I will install SNow Leopard this afternoon.
I have noticed a strange behaviour on 10.8.3 though.
I turned on Photo Booth earlier and it switched to the AMD Radeon Graphics. The screen then started messing up being fractioned in 2 half.I closed Photo Booth it switched back to the Intel graphics and everything was ok then.
For the moment I have temperatures of 48-52 using safari, itunes and Skype only.

Kinda odd because there is no ATI entry in the log file, just try Snow Leopard later on, if it still has the same issues there you could try reapplying the thermal paste, hopefully that will do the job, but as I said before I doubt it.

 

[domdom83]

Kinda odd because there is no ATI entry in the log file, just try Snow Leopard later on, if it still has the same issues there you could try reapplying the thermal paste, hopefully that will do the job, but as I said before I doubt it.

I've installed snow leopard and I have the same problem. It only seems to happen when I switch to the discrete graphic. The only workaround I have found for the moment is to install gfxcardstatus and forcing to the main board GPU.
My GPU is certainly dying.
This is probably the same problem I am having: https://forums.macrumors.com/threads/1401436/

For the moment my CPU is at 44 degrees.

D.

 

[justperry]

I've installed snow leopard and I have the same problem. It only seems to happen when I switch to the discrete graphic. The only workaround I have found for the moment is to install gfxcardstatus and forcing to the main board GPU.
My GPU is certainly dying.
This is probably the same problem I am having: https://forums.macrumors.com/threads/1401436/

For the moment my CPU is at 44 degrees.

D.

That's a 2010 model, if that was the case you could still get it repaired free of charge.

 

[domdom83]

That's a 2010 model, if that was the case you could still get it repaired free of charge.

I will do that.
Thanx for your help.

 

[justperry]

I will do that.
Thanx for your help.

I think you misunderstood me, the link you gave is a different macbookPro, there is a link which talks about free of charge replacement of a 2010 MBP, yours is not a 2010 model.