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Overheated laptop

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Anonymous
a b D Laptop
a b à CPUs
August 26, 2004 12:57:34 AM

Archived from groups: comp.sys.laptops,comp.laptops (More info?)

It's 6th time My dell insipron 1100 laptop was damaged from overheating
reporting touch pad not working keyboard not working, and funkies with AC
plugged. All later working good. Yup back to normal a day or two later.
Overheat isn't produced with battery powered since it limits cpu clock.
I wish I could limit Cpu clock even with AC plugged. Does anyone knows to
limit the cpu clock or speed?
I found limit the display brightness but not the cpu.
And does anyone know troubleshoot infor with USB ports? cuz My portable
mp3 and digital sin't come up where usb mouse and keyboard working normal.

More about : overheated laptop

Anonymous
a b D Laptop
a b à CPUs
September 3, 2004 6:17:21 PM

Archived from groups: comp.sys.laptops,comp.laptops (More info?)

Aiehce wrote in message...
> It's 6th time My dell insipron 1100 laptop was damaged from overheating
> reporting touch pad not working keyboard not working, and funkies with AC
> plugged. All later working good. Yup back to normal a day or two later.
> Overheat isn't produced with battery powered since it limits cpu clock.
> I wish I could limit Cpu clock even with AC plugged. Does anyone knows to
> limit the cpu clock or speed?
> I found limit the display brightness but not the cpu.
> And does anyone know troubleshoot infor with USB ports? cuz My portable
> mp3 and digital sin't come up

Try Christian Diefer's SpeedswitchXP. My laptop's at home and I don't
remember the fine details but you can set a parameter "Forced Throttle"
which will limit the maximum peformance state without forcing you to the
minimum state so you can still use dynamic performance control. It's on one
of the options pages but I can't remember which.

Google for SpeedswitchXP to find it.

David
Anonymous
a b D Laptop
a b à CPUs
September 4, 2004 12:29:03 PM

Archived from groups: comp.sys.laptops,comp.laptops (More info?)

Aiehce <hmm@no.spam> wrote in message news:<pan.2004.08.25.16.46.43.759585@no.spam>...
> It's 6th time My dell insipron 1100 laptop was damaged from overheating
> reporting touch pad not working keyboard not working, and funkies with AC
> plugged. All later working good. Yup back to normal a day or two later.
> Overheat isn't produced with battery powered since it limits cpu clock.
> I wish I could limit Cpu clock even with AC plugged. Does anyone knows to
> limit the cpu clock or speed?
> I found limit the display brightness but not the cpu.
> And does anyone know troubleshoot infor with USB ports? cuz My portable
> mp3 and digital sin't come up where usb mouse and keyboard working normal.

You can buy a laptop cooler at www.microcenter.com Here's the direct
link to the item: http://www.microcenter.com/single_product_results.phtml...
It's $40 bucks. If you don't like that price, try Froogling for a
cheaper one.

Some things you can do to avoid overheating is like don't use the
laptop on the bed (generates more heat), stay in a cool place (an A/C
room), don't leave your laptop on 24/7, etc.

------------------------------------------------------------------
Motherboard: Asus P5AD2 Premium
PSU: Antec 550 Watt
CPU: Intel Pentium 3.2Ghz 1MB L2 Cache /w HT
Hard Drive: Western Digital 36.7GB SATA 10K-RPM
Memory: OCZ Enhanced Bandwidth DDR2 PC2-4200 533Mhz
1GB (2x512MB) Dual Channel (4-3-3-12)
Audio: Integrated 7.1 channel C-Media
Video Card: ASUS ATI RADEON X800 XT PCI-Express (not Platinum
Edition)
OS: Windows XP Pro /w SP2 + all updates, DirectX 9.0c
CD-Drive 1: Asus 52x CD-ROM
CD-Drive 2: Sony DVD/CD 4x-R+R-RW+RW Combo Drive
Related resources
Anonymous
a b D Laptop
a b à CPUs
September 4, 2004 8:23:13 PM

Archived from groups: comp.sys.laptops,comp.laptops (More info?)

"David Lee" <davidlee_malvern@dont.use.this.bit.hotmail.com> wrote in
message news:ch9r0r$7on$1@hamble.qinetiq.com...
> Aiehce wrote in message...
>> It's 6th time My dell insipron 1100 laptop was damaged from
>> overheating
>> reporting touch pad not working keyboard not working, and funkies
>> with AC
>> plugged. All later working good. Yup back to normal a day or two
>> later.
>> Overheat isn't produced with battery powered since it limits cpu
>> clock.
>> I wish I could limit Cpu clock even with AC plugged. Does anyone
>> knows to
>> limit the cpu clock or speed?
>> I found limit the display brightness but not the cpu.
>> And does anyone know troubleshoot infor with USB ports? cuz My
>> portable
>> mp3 and digital sin't come up
>
> Try Christian Diefer's SpeedswitchXP. My laptop's at home and I don't
> remember the fine details but you can set a parameter "Forced
> Throttle"
> which will limit the maximum peformance state without forcing you to
> the
> minimum state so you can still use dynamic performance control. It's
> on one
> of the options pages but I can't remember which.
>
> Google for SpeedswitchXP to find it.
>
> David
>
>

Are you sure that there is not setting for throttling as part of BIOS
power management? Some vendors also supply their own power management
applet which does offer CPU throttling on AC whereas the Windows power
management does not. If your notebook has a Phoenix BIOS, this is
likely since other vendors with this BIOS do have the special throttling
applet, supplied by Phoenix. If there is a Dell-supplied power panel
applet, it must be running to do the throttling.

Q
Anonymous
a b D Laptop
a b à CPUs
September 6, 2004 3:45:36 PM

Archived from groups: comp.sys.laptops,comp.laptops (More info?)

Quaoar wrote ...
> Are you sure that there is not setting for throttling as part of BIOS
> power management? Some vendors also supply their own power management
> applet which does offer CPU throttling on AC whereas the Windows power
> management does not.

Not true. AFAIK the "Portable/Laptop" and "Minimal Power Management"
schemes both apply dynamic power management under both battery and AC power.
"Presentation" and "Max Battery" apply dynamic power management under AC
power but run the CPU in its lowest power state (with extra throttling in
theory) when running on battery power.

In principle you can set your own custom power schemes within Windows XP
based upon the standard ones but my impression has been that this only
applies to time-out and standby settings etc and that power policies are not
copied - I may be wrong.

As I previously posted, SpeedswitchXP will allow you to totally customize
your settings (within the power states defined in BIOS). There is also a
number of utilities available that allow the selection of ANY available CPU
clock rate or voltage setting (even ones that will crash your system so take
care!) I can't remember the names but I found them all via a Google search.

David
Anonymous
a b D Laptop
a b à CPUs
September 6, 2004 3:45:37 PM

Archived from groups: comp.sys.laptops,comp.laptops (More info?)

"David Lee" <davidlee_malvern@dont.use.this.bit.hotmail.com> wrote in
message news:chhf7v$8t4$1@hamble.qinetiq.com...
> Quaoar wrote ...
> > Are you sure that there is not setting for throttling as part of
> > BIOS
>> power management? Some vendors also supply their own power
>> management
>> applet which does offer CPU throttling on AC whereas the Windows
>> power
>> management does not.
>
> Not true. AFAIK the "Portable/Laptop" and "Minimal Power Management"
> schemes both apply dynamic power management under both battery and AC
> power.
> "Presentation" and "Max Battery" apply dynamic power management under
> AC
> power but run the CPU in its lowest power state (with extra throttling
> in
> theory) when running on battery power.
>
> In principle you can set your own custom power schemes within Windows
> XP
> based upon the standard ones but my impression has been that this
> only
> applies to time-out and standby settings etc and that power policies
> are not
> copied - I may be wrong.
>
> As I previously posted, SpeedswitchXP will allow you to totally
> customize
> your settings (within the power states defined in BIOS). There is
> also a
> number of utilities available that allow the selection of ANY
> available CPU
> clock rate or voltage setting (even ones that will crash your system
> so take
> care!) I can't remember the names but I found them all via a Google
> search.
>
> David
>
>

This is interesting. It's been my belief, based on reviewing BIOS
settings, that CPU throttling, while available in P4M chips by design,
is controlled by the BIOS, not Windows. In some Phoenix BIOSes,
throttling is "unavailable" in BIOS setup, not functional in Windows
power management, but is functional in the Phoenix-supplied power
management applet when it is running only. AFICS from actual operation,
the temperature/fan speed behavior is completely different in the two
modes, and is the only difference between the two modes. The CPU
throttling is not apparent in the CPU frequency reported by Windows,
only indirectly by observing the fan speed/temperature and noting the
decrease in responsiveness in operation. This is because the CPU
throttling is based not on an actual reduction in the CPU frequency, but
by skipping instruction cycles. Also, none of the third-party fan
control/speed control apps seem to function with the Phoenix BIOS with
the power management applet.

Q
!