Weird temp in M17x R2

Hi guys,

Since I bought this machine I am thrilled, but one thing constantly annoyed me - the noise.

Now I understand that when gaming this is normal to be noisy from gaming machine, but in watching movies or browsing some heavier sites the fan hits the higher speeds (the CPU fan) and this is plain ridiculous.

I installed Hwinfo64 to check what's happening and lower the fan speed, cause I though the fan gets activated at too low temps, but it turns out it gets noisier when something passes 70 degrees C, which is kindy ok. From the screenshot there's one thing that has 15 degrees delta temps from everything else....... Can someone tell what it is???

The CPU is i7 920 XM

 

Not all cores and laptop areas have the same cooling, some components cause more heat than others. I'm not sure which component is specifically causing that raise of temperature in that sensor, but an overall dust off might do some good.

As far as none go above 90.0C everything should be just fine.

 

The difference in core temps is normal. Some apps can't use a multi-cored CPU effectively so they will divert to using only one or two cores. Those cores then get higher temps than the other six since they are in use and the others aren't. As far as the fans constantly going from low to high, I have the same problem. It doesn't happen in the winter time, but it's 95 degrees F here where I live in southern California. At those temps, my R2 has to keep the fans on high to keep itself cool. It doesn't matter if the heatsinks are completely clean, if the outside temp is high, then the notebook will have to run it's fans high to keep the internal temps down.

 

Just by the way, the CPU fan will always kick on once anything launches, at least with my R2 and a 920XM. You also have to realize, it's a 55 watt TDP Extreme quad core i7...case in point, I've never heard my R2 be quiet at all.

 

I have. In the winter, while the notebook is idling, the fans will kick off for a small amount of time. Usually no more than 10 minutes before they cycle back to low. While the fans was on low, idle temps were in the 30's. When the fan was off, 42C - 47C.

 

About the cleaning - the laptop is clean, so this is not the issue
About the cores - the reason there is a task manager is to show that there's not that much pressure on one core, but it is spread on the others as well. If only one core was stressed, then it would have made sense this temp. This is not the case.
Still, the delta is 15 C and more even, which is veeery annoying.

 

It sounds like it has always been like this for you.
When you say it is clean. Have you opened it up for cleaning?

In my case with 920 and 5870s the fans almost never ran max unless gaming or benching, always stayed about 1900 2000 rpm but after a couple of years of use I noticed the fans would max all the time even when just watching video in the browser.

Finally I decided to repaste CPU and GPU, when I opened and removed heat sinks I saw they were clogged with stuff, so I cleaned everything and repasted now fans are back to normal and temps are down.

Also after I put in the 920 a long time ago I noticed 2 cores were always hotter. after last repaste they are all almost same. It may have been bad paste previously or I didn't tighten heat sink on CPU evenly.

Now my CPU cores idle around 50 and GPU0 56, GPU1 46