Vaio z13 temperature and processor load problem

Hi, my name is Hendrik and I’m German, so sorry for my bad English.

I have a problem with my Sony Vaio z13 (VPC-Z13C5E) with an Intel Core I5-560M from 2010.

Normally it has a temperature of 37-42° Celsius in the idle.
But since some weeks it goes up to 60-70° Celsius. When this happens, the processor load in the windows task manager is round about 50% in the idle.
Sometimes this happens directly after a fresh boot and sometimes I can work a while and it appears suddenly.
E.g. today I was surfing in the internet and speedfan showed me a temperature of 37° Celsius and a processor load of 2-3 %. Then I started a word document with just two pages and the temperature jumps up to 57° Celsius and the processor load to 54%. The fan got loud, too. I closed the word document and the Internet browser but nothing happened.

Then I applied pressure to the chassis from below for 2 seconds and all went back to good. It is approximately the place where the cpu and the graphic card is located.

My first attempt to fix this problem, was to change the RAM, the hard disk, reinstall windows 7 -64 bit.

Yesterday I dissembled the laptop totally and renewed the thermal paste at the cpu and graphics card.
It is now a little better, but sometimes I get still high temperatures from out of nowhere.
I can fix it with the little push from underneath or from the top on the mainboard when the keyboard is taken away.

When the temperature jumps up I can hear a quiet sound which sounds like the whistling of a solenoid.

Is there anything I can do or is something on the mainboard or the cooling unit broken?

Thank you for your help, Hendrik

 

You need to find out which program kicks up the processor load to 50%.

 

Yes, it sounds like a software problem not a hardware problem. The whistling you hear is just the CPU being used (mine makes a squaky noise too). Have a look at task manager, make sure you're showing processes of all users, and pick out the one that's consuming your CPU. The try to find out what it is. When my CPU is running at 50%, I also get temperatures at 70C, so that sounds normal to me.

 

Hi, thank you for your help.
I don’t think that there is one special program which kicks up the processor load.

Yesterday it was the word document which I can start now without any problems. Sometimes it happened when I am surfing the internet sometimes when I start photoshop and sometimes when I listen to music or watch a movie. But I definitely can’t reproduce the problem.

Today I just boot my laptop and do nothing. Three minutes later I have the problem again. Then I gave it the little pressure from underneath and the last 30 minutes all works fine (working with word, firefox, photoshop and indesign CS6 at the moment).

In the windows task manager all processes shows me 00% of cpu load (99% system idle process). In the resource monitor I can see that the entire processor load is caused by the process “Systemunterbrechungen” Sorry there is no English word for that. But these are system hardware interrupts.

With the tool LatencyMon I have no high executions with deactivated nvidia geforce 330 card. When I’m going to activate the nvidia card the drivers of the card get a very high execution (over 30 ms). But they have it all the time even I can work hours without any hardware interrupts. And most of the time I work in stamina mode.

And I had the problem direct after a new install of windows too. I tested it with the original recovery and a clean install.
I installed the actual BIOS from the sony website and all original drivers. I tested it with some other drivers which I found here in the forum like the drivers for the nvidia gpu too.

 

Maybe you should consider changing the mainframe of the socket and apply some HEAT-resistant Bromine into the thermal paste mix. Use Arctic Cooling silver-based thermal paste and shun away from all mercury based ones and I'm sure you'll be dent in the game. Just hogwash isn't snowing anytime soon you know and summerheat might cause even the most awesome laptops to overheat, though my system, running at 99% load on all four physical cores 16/7 seems cool as a breeze even in this summer weather. Alternatively of course you could opt for a brainstorming session without goons from the PR department leading the show and actually present some kind of appearance of 'real life' in your queries. Sha #1 beta 0.42 / magistrate convalescence / z-19_43/justice/magsitrate_affirmed.xps

# putty 1693:8c62:1334:b598:0000:2218:g849:h147//219 -insert_mainframe command.com -autoexec_save -hidden //users/Daniel Steinberg/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/Autostart/

Hedgehog FTW!

 

When you changed the thermal paste, did you clean off the old paste? What about the thermal pad on the GPU? Did that survive, or did you just get rid of it and applied paste there too? If so, then that won't cut it - you need a shim, because the original thermal pad on the GPU is thicker than normal.

Please take a look at the thread http://forum.notebookreview.com/sony/594314-vpc-z-change-thermal-paste.html for detailed instructions and links.

 

Thanks again,
To be snowing it is not so far away at the moment. We have a temperature from 1-12° Celsius at the moment… this is german summer
I will try it with another thermal paste (arctic silver mx-4).
I have to admit that I removed the thermal pad from the gpu because it was damage. It was in a sort of a plastic-frame. I cut out the old pad and filled it with the thermal paste. I knew that is not so good but I work only in stamina mode at the moment.
Thank you for the link. I will read it and going to try it with a shim.