So, is running Cool n Quiet a good thing?

  • Thread starter Thread starter Larry Hodges
  • Start date Start date
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Larry Hodges

What does it do exactly? Is it really beneficial, or just wasted overhead?

Thanks,
-Larry
 
When the cpu is loafing it cuts its speed and power. So, less heat, less
energy waste. cpu voltage has to be on auto in the bios. amd driver has to
be loaded. Or you can use CrystalCPUID.


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Larry said:
What does it do exactly? Is it really beneficial, or just wasted overhead?

Thanks,
-Larry
Click to expand...
Cool n Quiet if it is enabled on the motherboard slows down the fan and
even stops the fan when there is not load on the CPU. Because the fan is
not running or is running slow the fan is producing less noise. The fan
is only slowed when the cpu is generating low levels of heat and the CPU
does not require a fan running at full speed.
 
Ken said:
Cool n Quiet if it is enabled on the motherboard slows down the fan and
even stops the fan when there is not load on the CPU. Because the fan is
not running or is running slow the fan is producing less noise. The fan
is only slowed when the cpu is generating low levels of heat and the CPU
does not require a fan running at full speed.
Click to expand...

I'm pretty sure that that is a component of some motherboards, and not cool
n quiet.


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Ken said:
Cool n Quiet if it is enabled on the motherboard slows down the fan and
even stops the fan when there is not load on the CPU. Because the fan is
not running or is running slow the fan is producing less noise. The fan
is only slowed when the cpu is generating low levels of heat and the CPU
does not require a fan running at full speed.
Click to expand...

When the CPU fan is running slower, the heatsink accumulates less dust
and doesn't require cleaning as often.
 
Cal said:
When the CPU fan is running slower, the heatsink accumulates less dust
and doesn't require cleaning as often.
Click to expand...
It is one of many features of the AMD 929 CPU and details can be found
on the AMD web site
 
What does it do exactly?
Click to expand...

It's basically Powernow with a new marketing name. By itself, it does
nothing. Using software hooks in it, it allows the cpu to run at lower
speeds and voltages depending on how you set it up. You can set it up for
manual control, or automatic control. Manually for instance, I can tell
mine to run at [email protected], [email protected], or [email protected] (the max rated
speed of the cpu). Or I can set it for automatic scaling from a
configurable file. Here's an example.

[General]
pidfile=/var/run/cpufreqd.pid
poll_interval=2
pm_type=acpi #(acpi, apm or pmu)
# Uncomment the following line to enable ACPI workaround (see cpufreqd.conf(5))
# acpi_workaround=1
verbosity=4 #(if you want a minimal logging set to 5)

[Profile]
name=hi_boost
minfreq=2000000
maxfreq=2000000
policy=userspace

[Profile]
name=medium_boost
minfreq=1800000
maxfreq=1800000
policy=userspace

[Profile]
name=lo_boost
minfreq=800000
maxfreq=800000
policy=userspace

[Rule]
name=cpulow
cpu_interval=0-3
profile=lo_boost

[Rule]
name=cpumedium
cpu_interval=3-80
profile=medium_boost

[Rule]
name=cpuhigh
cpu_interval=80-100
profile=hi_boost

[Rule]
name=crackattack
programs=crack-attack
cpu_interval=90-100
profile=lo_boost

# full power when watching DVDs :
[Rule]
name=dvd_watching
programs=xine,mplayer,avidemux,totem
cpu_interval=0-100
profile=medium_boost
Is it really beneficial, or just wasted overhead?
Click to expand...
I'll leave that up to you.:-)
 
It is one of many features of the AMD 929 CPU and details can be found on
the AMD web site
Click to expand...

Then the AMD website is wrong (more likely you just misinterpreted it).
CnQ has no fan control. By itself, it really does nothing. Now, used in
conjunction with a MB that's capable of fan control compared to temps, a
lower cpu speed and voltage will bring down the temps, and so the Mb fan
control will lower the fan speed. But that really has nothing to do with
CnQ (Powernow). I sure wish it did have some magic way of changing the
voltage to the fan since my MB doesn't have fan control.:-)
 
Ken said:
It is one of many features of the AMD 929 CPU and details can be found on
the AMD web site
Click to expand...

Actually, Cool n' Quiet/Power now is *NOT* a fan control program. It allows
the system to monitor activity and throttle both the frequency and the
voltage of the processor in accordance with the system demand. When demand
is low, the voltage and frequency drop dramatically, producing less heat,
thus your fans don't have to spin as fast (or as loud) to keep the system
cool.

The information posted by Ken is inaccurate. It does not control the fan.


Bobby
 
Cool n Quiet if it is enabled on the motherboard slows down the fan and
even stops the fan when there is not load on the CPU. Because the fan is
not running or is running slow the fan is producing less noise. The fan
is only slowed when the cpu is generating low levels of heat and the CPU
does not require a fan running at full speed.
Click to expand...

what E light said + AMD's boxed fan has a thermal control built in, it
spins 3000 to 6000 rpm depending on case temp basically.
 
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