Window 7 increases my cpu temperature

[superaymond]

Before I upgraded to W7 from vista, my average temperature on this laptop is around low 40s degree, but right after i install it, it jumped to as high as 53 degree with nothing running.

 

I am using speedfan at the moment, but found this other program called real temp. I used both and they are around 5 dgrees apart, real temp is lower in temperature. Real temp seem to be more of the normal temperature that I've seen in vista, but I have always used speed fan. Which one should I trust?

 

Btw did anyone else's temperature go up after w7 installation?

[Sbrideau]

Did you go from 32bit to 64bit? That's what I did when I went from Vista to 7 on my laptop and it does heat more as well.

[im1knight]

same thing here, my laptop raised by about 10C by going to 64 bit windows 7 from XP 32bit as well.

I guess 64 bit Os just use more CPU power compared to 32? lol

[Will H]

Woah, me too. I upgraded from XP x32 to 7 x64, and I had to install another fan at the side of the case to compensate. Might it have something to do with more efficient multi-core processing, or the bigger bit sizes?

[Sbrideau]

If my logic is right, it's using the full power of the 64bit processor while 32bit programs only use half of what the processor is capable of, thus making the operating system faster, but as there is more power used, what is lost (heat) is higher too.

[Will H]

If my logic is right, it's using the full power of the 64bit processor while 32bit programs only use half of what the processor is capable of, thus making the operating system faster, but as there is more power used, what is lost (heat) is higher too.

 

I suppose the ultimate test here would be to compare the temperatures of Vista x64 and 7 x64 in the same build and see if there is a noticeable difference.

[Sbrideau]

That I will do, I've been planning for a while to install 7 instead of Vista x64 on my desktop, only needed to come up with the money.

[Gandalf14141]

That I will do, I've been planning for a while to install 7 instead of Vista x64 on my desktop, only needed to come up with the money.

 

I might be able to help with this.. I'm going to upgrade here soon (within the week)

[MageUK]

If my logic is right, it's using the full power of the 64bit processor while 32bit programs only use half of what the processor is capable of, thus making the operating system faster, but as there is more power used, what is lost (heat) is higher too.

 

It's absolutely nowhere near half for 32-bit systems. The main feature of 64-bit is to allow the addressing of more memory. There's the ability to handle more information at once because of an increased bus width, and also they handle smaller numbers more efficiently. There's also the ability to use some special 64-bit instructions. None of these features, however, make it twice as fast as the same CPU in 32-bit mode.

 

Perhaps you didn't mean to phrase it to sound like that, I'm unsure.

[Sbrideau]

Quite right, but you cleared everything up in a more understadable way. I was quite tired the night I wrote this, so It's a bit normal I didn't phrase that like I should have. Thank you very much :).

[wingwinder]

If my logic is right, it's using the full power of the 64bit processor while 32bit programs only use half of what the processor is capable of, thus making the operating system faster, but as there is more power used, what is lost (heat) is higher too.

 

It's absolutely nowhere near half for 32-bit systems. The main feature of 64-bit is to allow the addressing of more memory. There's the ability to handle more information at once because of an increased bus width, and also they handle smaller numbers more efficiently. There's also the ability to use some special 64-bit instructions. None of these features, however, make it twice as fast as the same CPU in 32-bit mode.

 

Perhaps you didn't mean to phrase it to sound like that, I'm unsure.

Handling more memory means the CPU has to work harder correct?

[MageUK]

If my logic is right, it's using the full power of the 64bit processor while 32bit programs only use half of what the processor is capable of, thus making the operating system faster, but as there is more power used, what is lost (heat) is higher too.

 

It's absolutely nowhere near half for 32-bit systems. The main feature of 64-bit is to allow the addressing of more memory. There's the ability to handle more information at once because of an increased bus width, and also they handle smaller numbers more efficiently. There's also the ability to use some special 64-bit instructions. None of these features, however, make it twice as fast as the same CPU in 32-bit mode.

 

Perhaps you didn't mean to phrase it to sound like that, I'm unsure.

Handling more memory means the CPU has to work harder correct?

 

It has the ability to handle more memory because the address bus is much wider, in 32-bit a smaller address bus is used. Bear in mind this memory only needs addressing if it exists, if you're using the same amount of RAM when you moved from 32-bit to 64-bit then it's not doing any more work, or at least nothing that would cause any kind of noticeable load or temperature increase.

[The Dark Lord]

What do you do to find the temperature? This might be useful for me so that I can keep everything from overheating (does it a lot, probably because I sit my laptop on my lap).

 

Also, about how hot can it get before it shuts down?

[Sbrideau]

The shutdown temperatures varies depending on what the settings are in the BIOS and the processor you have, although it can range from 70 to 85, those are the temperatures I've seen so far. To find your temperature, you can use a free program called Speedfan. Also, as I think you already know, it's very bad on a laptop to have it on your lap as it blocks the vents that are under, where the air enters the laptop. That's why they now call them notebooks.

[Sbrideau]

Yep, using speedfan on Both Vista x64 and Windows 7 x64 on my desktop, the temperatures are staying pretty much the same, maybe a little lower with Windows 7. Mind you, my Vista installation was over one year old, so there were probably a lot more programs running on it too.