i7 940xm temp?

I'm really concerned about my cpu temp,

it reaches 82/83 celsius when gaming, around 56-66 while idling/browsing after 1 hour of gaming.

since I have already re-pasted everything with Shin-Etsu X23, I don't like the results at all cos I've seen somewhere that some people said they reach only 65-75 max while gaming, and 45-50 while idling.

Here is what I get after 1 hour of gaming from HWiNFO32 in attachment, please advice what might be the problem, thanks

 

A couple of questions. What is your ambient room temperature? Ambient temps will play a part in your overall temps. Secondly, are you using ThrottleStop with the CPU? ThrottleStop is going to cause your CPU to get a good bit warmer because it is allowing the CPU to use more power. Lastly, what game are you playing? Every game uses the CPU differently. Some games hardly use it at all.

 

hi TurbodTalon, I don't know my ambient room temperature since I have no tool to find out but the outside temp is around 16 celsius at the moment, and I have never used/downloaded ThrottleStop.

The games that I played were mini ninja and oblivion (with godray + field of depth mods and etc.), and it seems that the cpu has reached 82/83 celsius with other games as well, e.g. dirt 3, nba 2k11.

 

If DR650 sees this thread he can comment on temperatures for the 940XM, but I do remember someone saying that it was a 'hot' CPU. You mentioned that you already re-pasted. Did you clean any gunk off of the heat sink and fan blades? Is your rear heat exhaust vent obstructed in any way? Put you laptop on a hard, flat surface and elevate the rear with two bottle caps. Not like the thin beer caps, but the thicker ones from a soda bottle. Report back with your temperatures after that.

 

I've used alcohol pads to clean the cpu heat sink when re-pasting, and I think there is no residue left on it, but I did see some kind of pattern left on the heat sink, it looks like what might be left by adhesive tape or original thermal paste/thermal pad, sorry for my English, it's hard to describe, I hope you can get what I mean.

Here is my screenshot of the temps after elevate the rear of the laptop by two coke bottle caps, and that is after 30 mins of nba 2k11 gaming. as you can see the temps are now better, my browsing temp is around 49-61 celsius (mostly 53 celsius) at the moment.

 

Your peak temps dropped 2° C, which is an improvement. I think that 940XM is just a hot chip, honestly. I don't know how much of an improvement you're going to see.

 

I got it, thanks a lot TurbodTalon, I really appreciate your help.

 

You're welcome, Sir. And I wouldn't worry about those temperatures. Intel CPUs can put up with a LOT of abuse. The chip will last longer than your laptop, I'm sure.

 

hehe, alright I see, that should put my mind at ease )

 

Joker5150 and DR650 have a ton of experience with that chip, and can probably quote you temperatures off the top of their heads. I haven't seen Joker around for a long time though. I think he bought an M18x.

 

Right, I think I will just bear with it for the time being, and hopefully, they can give me some advice once back.

 

my 920 idle temps are around 37-43 (26/26/24/24----tdp75-tdc62)
during gaming max 64-65'c

but i have the best thermal paste available

ic diamond 7 FTW

 

I have the 940xm cpu and have went through so many pastes because of how high the temps get. At the moment im running the Tx 4 paste which seems to have the best results for me. I idle between 45-47 and stay on that web surfing, and in gaming the highest i reach is 78, i mainly stay between 74-76.

I purchased the tx 4 twice because of the first tube i got was rock solid, was unusable. The second was pretty decent, i only placed a pea size amount in the middle of the surface of the cpu and just screwed the heatsink on it to take care of the spreading, that has given me the best results so far over manually spreading it myself.

P.S. I use a program to view movie files called "Splash Pro", when i enable a feature called "motion interpolation" my cpu temps fly up, i was seeing 88-90 easily, and now with tx 4 i never go above 76 with that program.

 

The temps you have are not terrible, but they could be better. Like Turbo said, it is a pretty hot chip at 55W.

Here is what I did, and it should help you drop your temps. Depends on if you can spend time doing it and can or are confortable taking the keyboard off.

Remove the keyboard so you have access to the CPU heatsink screws. Once thats done, you have to keep the keyboard ribbon plugged in so you can run the keyboard with it off.

Now run a program like prime95 or wPrime 1024. Run wPirme 1024 with 8 threads (advanced settings, change it to 8) This will give you 100% CPU load. Then just run that program while running real temp.

As the program runs your CPU will get to it's max temp. While monitoring temps, adjust your heatsink screws. adjust them little by little and alternate between screws. You'll notice some movements may lower temps a bit, some will make it get hotter.

What I found is that by tightening all screws down, it can cause the heatsink to warp a tiny bit, which removes some heatsink pressure and surface area from the die. Doing the screw adjustments will allow you to get maximum contact between the copper and the CPU die.

Also make sure you use the spread method with your thermal paste. This will make sure the whole die is covered. It's better then putting a round piece in the middle and letting the heatsink spread it. using the heatsink to spread will likely not result in 100% coverage. The thermal paste is there to fill any tiny imperfections between the die and the heatsink surface.

Once you have the heatsink adjusted you can download throttlestop and use that program to increase your TDP (which will give the CPU more power for turbo boost) This will increase heat, but you can run it around 80 watts, and should see the CPU level off.

Right now my 940XM is idleing on this page around 43*C-47*C. Don't quite know my ambient temp. But if I scroll a page full of google images it will get to about 65*-70*

If you decide to do this manual adjustment, let us know how it goes, it's normally pretty effective.

 

Great advice DR650SE!, i think i will do the tweak too...

 

Thanks a lot man, what is the difference between ic diamond 7 and ic diamond 24? I think I will get one of these and see if there is any improvement over temps.

 

Hi DR650SE, that's interesting, I never thought of doing that way, I think I will do it as soon as I get the ic diamond thermal paste. thanks!

On the other hand, when spreading the thermal paste, what tool I should use, e.g. plastic business card or knife? Should I keep the thermal paste layer thin or thick?

and also, is it better to use thick thermal paste for RAMs or thin/thick thermal pad?

 

I use thermal pads, .5mm for the memory chips. For the CPU die, try and keep it thick. Also put the tube in some hot water or near a light bulb so that it will warm up and make the paste easier to spread/softer.

A thin credit card should help. I perfer the spread method because it helps to ensure even coverage on the die. In this case less is more. You want thin coverage. I like to keep it so I can't see the die, but it's all across. a little too much won't hurt, as the heatsink will spread it out and thin it, but you definately don't want to dump a tennisball size amount on the CPU

To sum it up: Less is more, make sure it's even and covers the whole die. Spread it. Thats it

 

only in amount. 1.5gram for 7carat and 4.8 for 24 carat

 

okay so it is safe to say that good temps for an i7 940 extreme when just browsing the web with 1 browser open should be between 35-45 degrees farenheit?

the thermal paste i used for my last paste is antec nano diamond formula 6. so far my temps are what i described above.

the other day i was playing crysis 2 and my cpu started to throttlestop. however, i did notice the room was humid a bit.

 

lol, you'll upset people with that.

Throttle is when the cpu slows down. ThrottleStop, prevents this allowing more from the cpu.
P.

 

*Celcius not farenheit

who uses farenheit anyway?

 

oops sorry about that last post. was in a hurry when typing it.

 

how many of you actually use throttlestop?

also, do you notice an actual increase in performance whether it be gaming or whatever?

 

Actually........all m17x owners are using it. Performance increase is huge if you have an XM cpu.

 

okay so pretty much everyone is using throttlestop.....then i need to get on board.

so flingin instructions on getting throttlestop?

 

wait a sec you think there will be bottlnecking with my rig if i use throttlestop?

 

http://forum.notebookreview.com/har...arket-upgrades/531329-throttlestop-guide.html

read the whole guide, download link at the end of the first post.