Author Topic: hot laptop on AC line  (Read 5042 times)

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Offline rejetto

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hot laptop on AC line
« on: January 09, 2009, 01:33:50 PM »
hi guys.
my laptop automatically lowers the CPU speed when i'm on battery.
this saves energy, but also lowers the noise (by stopping the fan).

when i'm on my desk (no battery, connected to the AC line) the CPU is stuck to the higher voltage, even if the usage is under 5%. It's quite noisy in my opionion. :(

do you know any solution?
i tried NHC with no luck.

Offline Mars

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Re: hot laptop on AC line
« Reply #1 on: January 09, 2009, 05:06:59 PM »
The first (funny) idea which comes to me to the spirit is that you buy quies balls ;D

You can also buy the second battery (who can replace the other one when yours will have returned the soul) and to work in alternation with the one or the other one while the second is in refill.

Otherwise is going to make a tour of the highly-rated of tone bios, you have to have a parameter which allows you to modify the percentage of the speed of the cpu when the internal temperature exceeds one certain value, more you can make turn your processor slowly, less often your ventilator can start.

Other possibility: in the parameters system of Windows you have a material tab with various profiles, in which you must be able to force the functioning in autonomous mode) (genre setting in a stand-by mode of the hdd at the end of some minutes.......), to you to look more forward in this direction because I have no laptop at disposal to make out a will

Offline rejetto

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Re: hot laptop on AC line
« Reply #2 on: January 09, 2009, 05:26:35 PM »
quies balls?  :-X
i cannot always use battery, for many reasons.
there's nothing in BIOS to specify how to act when on power cable.
and i found nothing in Windows settings to specify the CPU behaviour, it's automatic.
:(

Offline Mars

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Re: hot laptop on AC line
« Reply #3 on: January 09, 2009, 05:45:32 PM »
Quote
quies balls? 

earplug  ;D

You can also wrap yourself the head in two kilograms of cotton wool ;D

Offline parade

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Re: hot laptop on AC line
« Reply #4 on: January 09, 2009, 06:49:47 PM »

and i found nothing in Windows settings to specify the CPU behaviour, it's automatic.
:(

What about Powercfg and the parameter processor-throttle-ac and the specifications constant or degrade or adaptive

http://technet.microsoft.com/de-de/library/cc772692.aspx

Offline bacter

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Re: hot laptop on AC line
« Reply #5 on: January 09, 2009, 07:28:51 PM »
Normally balanced power-profile works with processor-throttle-ac:adaptive if processor/mainboard support it (acer-lowcost with celeron for example do). When balancesd is selected, cpuclock and voltage are regulated depending for processor load, no matter if battery is present or not.
If it does not work on your laptop, perhaps a biosupdate is available and may help.
your computer has no brain - use your own !

Offline rejetto

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Re: hot laptop on AC line
« Reply #6 on: January 10, 2009, 08:56:27 PM »
very interesting infos, thank you.
sadly, i tried "adaptive" and "degrade" but nothing changed.
:(

Offline parade

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Re: hot laptop on AC line
« Reply #7 on: January 10, 2009, 09:29:04 PM »
sadly, i tried "adaptive" and "degrade" but nothing changed.
:(
Di you use the right syntax?
You habe to specify your selected power scheme.

powercfg /change powerscheme-name /processor-throttle-ac adaptive

Offline bacter

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Re: hot laptop on AC line
« Reply #8 on: January 10, 2009, 10:59:37 PM »
Quote
sadly, i tried "adaptive" and "degrade" but nothing changed.

Seems that your hardware/bios does not support processor-throttle-ac.
your computer has no brain - use your own !

Offline MarkV

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Re: hot laptop on AC line
« Reply #9 on: January 11, 2009, 09:41:07 PM »
I'm using this software, maybe it's something for you.

http://cpu.rightmark.org
http://worldipv6launch.org - The world is different now.

Offline TSG

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Re: hot laptop on AC line
« Reply #10 on: January 12, 2009, 10:52:56 AM »
My laptop is a Toshiba and it has a Toshiba Power Saver Utility, with like 6 different profiles and the ability to create more. While I don't like to run too many processes on boot, I find its a handy utility over the built in windows settings.

From memory your laptop is a HP? or not, I cant remember. Does your laptops manufacturer provide a power saving utility?

Mine is actually the opposite, for some reason the cpu fan kicks in more when its on battery lol, i think its to cool the battery or something.

Offline Fysack

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Re: hot laptop on AC line
« Reply #11 on: January 12, 2009, 06:34:42 PM »
Maybe a laptop cooler powerd by the usb would help:
http://www.zalman.co.kr/Eng/product/Product_Read.asp?idx=280

..or/and a cpu cooler:
http://www.silverstonetek.com/products/p_contents.php?pno=nt07-pro
Support Intel mobile Intel MoDT Socket 478, 479 up to Core 2 Duo T7700 & above

..but this is just guessing from my point of view, so if your case fan just keeps spinning while your on AC, its a software thing..
If its a harware thing, maybe some soldering would do the thing  :-\ ;)

GOD CAN READ YOUR MIND

Offline ge2001

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Re: hot laptop on AC line
« Reply #12 on: January 12, 2009, 11:08:58 PM »
Hi Rejetto,
it is not only cpu depended, it is also gpu related.
So if you are a lucky guy with a separate grafic card the drawback is the extra heat.
The room temperature is also important.

If your cpu is an amd one you should install amd power now utility.
I don't believe that there exist any software that can fix the fan noise problem, but i'm not sure.

Some notebooks, like mine, has an hardware key to slow down the cpu speed.
But in my case without a significant effect.

One way you can try is to open system control, enery options, tab ==> energy schema.
I just noticed that in the dropdown box there is an option called 'minimum energy consumption'.
I never tried this option, maybe that helps.

In any case, some notebooks are realy noisy ...
The notebook manufactors seems not to be able to handle that correctly.

Play some cool sound with your stereo equipment and you will never here the cooling fan anymore.  ;)

good luck


Warp

Offline rejetto

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Re: hot laptop on AC line
« Reply #13 on: January 13, 2009, 12:55:29 PM »
my laptop is an HP/Compaq 2510P
my GPU is an integrated intel (i never run recent games).
i can't use a laptop cooler because i use a docking station.
the "max battery" default schema doesn't help.
i'll try with this RMclock utility. it seems quite powerful (and hard to use).

thank you very much guys :)

Offline rejetto

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Re: hot laptop on AC line
« Reply #14 on: January 16, 2009, 04:03:55 AM »
If it does not work on your laptop, perhaps a biosupdate is available and may help.

since i updated the firmware the problem disappeared.
this will cool it down a bit.
thank you :)

Offline Fysack

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Re: hot laptop on AC line
« Reply #15 on: January 18, 2009, 09:20:17 PM »
welcome to the hfs community, there will always be someone there that could help you ;-)
GOD CAN READ YOUR MIND