Heat For Various Power Settings

T4x series specific matters only
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rosemarycane
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Heat For Various Power Settings

#1 Post by rosemarycane » Thu May 18, 2006 8:09 am

Today I notice when my computer is set to maximum performance and plugged in, the temperature sits around 45 degrees. This is while I am surfing the web.

When set to maximum battery, it stays between 37 - 38 degrees plugged in.

Should it be 45 degrees when I am only surfing the web on maximum performance?

I should mention my processor speed is 2 GHz and I have 2gigs of ram installed.

Thanks for any input.

Sean

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#2 Post by Hanson » Thu May 18, 2006 10:30 am

Yeah, the temperatures are about similar to mine.

The only reason why the temperature is higher when on maximum performance setting is because the CPU clock is always at 2.0ghz so it uses an extra 0.376V (for me at least) of power which generates more heat.
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Proud owner of T43 (2687-D8U), PM750, 2GB RAM, 80GB 7200rpm, 14.1 SXGA+, X300, DVD-RW, Atheros A/B/G

rosemarycane
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Thanks for the Response!

#3 Post by rosemarycane » Thu May 18, 2006 1:09 pm

Thanks,

Ever since I installed more memory (from the stock 512mb), the laptop seems to be hotter to me.

Sean

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#4 Post by Riddil » Thu May 18, 2006 4:49 pm

There's no reason to EVER use "max performance". Use one of the Thinkpad default or portable / laptop schemes. They allow CPU and system bus throttling. Intel has gotten so advanced with their ability to throttle the system up when there's a legitimate *requirement* for full power that benchmarks between "max performance" and the laptop schemes are less than 1% apart.

What this means: your system runs MUCH hotter, and your battery life is MUCH shorter. All for less than a 1% performance boost.

AND add to the fact that the greatest thing that shortens the life of electical components is how hot they run for how long. So your system that may run for 7 years with no problems will start dying on you after 3.

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#5 Post by Bgradid » Thu May 18, 2006 6:57 pm

Riddil wrote:There's no reason to EVER use "max performance". Use one of the Thinkpad default or portable / laptop schemes.
Actually, there is for me when i'm running some applicaitons where I will notice a huge change when it switches profiles (real time application, such as a 3d game).

Also, unreal tournament (the original) is quite funny to start up on 'dynamic' as it will test the cpu's speed at its lowest, and then proceed to run on its fastest. The result: the game plays at warp factor 9
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Nighthinker
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Re: Heat For Various Power Settings

#6 Post by Nighthinker » Thu May 18, 2006 7:09 pm

rosemarycane wrote:Today I notice when my computer is set to maximum performance and plugged in, the temperature sits around 45 degrees. This is while I am surfing the web.

When set to maximum battery, it stays between 37 - 38 degrees plugged in.

Should it be 45 degrees when I am only surfing the web on maximum performance?

I should mention my processor speed is 2 GHz and I have 2gigs of ram installed.

Thanks for any input.

Sean
3x god already, buddy. See what I have done in order to make it ACAP(C-->COOL):
  • in BIOS, Power Mode for AC: Maximun Battery Life(in contrast with MAX Performance);
    in BIOS, AC thermal scheme: balanced(in contrast with MAX Performance);
    in BIOS, Intel SpeedStep technology Intel, Mode for AC: automatic(in contrast with MAX Performance);
    in OS, disabled powerplay, use CHC, clock directly down;
    power scheme: adaptive CPU(in contrast with highest), balance all params for optimize fan control(in contrast with MAX performance).

Result after all?! Normal surf after 1 hour turning on the PC, yes, what a coincidence: 45-46 degrees... Room temperature, approx. 18 degrees, o, and BTW, mine is 1.86G, ermmm, if you were living in the south pole, that really comforts me then.:D

Nevertheless, I love this PC, just some complaint.:P

BTW, perhaps you may try to adjust yours as what I've done to mine, let's see how C it's gonna be.
ThinkPad T43 2686-DGU / 1G RAM + BMDC IV

rosemarycane
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Yes But What About the Underside?

#7 Post by rosemarycane » Thu May 18, 2006 11:25 pm

Does the underside of your thinkpad directly underneath the touchpad get warm?

gunston
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#8 Post by gunston » Thu May 18, 2006 11:42 pm

underneath of every thinkpad will get warm no matter what setting you did.
1. T43 2668-B97 14" SXGA+ 1.5G RAM 9cells
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#9 Post by Nighthinker » Fri May 19, 2006 3:23 am

Yea, it's always warm. The highest temp parts for me are always AGP & PCI, according to FC. They're just residing around underneath the touchpad. It's a common issue among T43 anyway. So nvm. :)
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#10 Post by gunston » Fri May 19, 2006 4:08 am

yeah, PCI remain the highest temperature than other device like CPU, GPU, etc is a common scene.
therefore, you will feel bit hot when using the touchpad,
no worry. :wink:
1. T43 2668-B97 14" SXGA+ 1.5G RAM 9cells
2. X60s 1703-CA3 powerful

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