QUOTE (Lepy @ Jan 14 2005, 07:44 PM) Does Zalman 7000B-AlCu have thermally controlled fan?? Will Cool ‘n’ Quiet work fine with it??
No, but it will work just fine.
QUOTE "If an AMD Athlon 64 Processor-In-A-Box package is not used, an appropriate 3rd party heatsink with a thermally controlled fan must be used." I think this statement (though technically correct) can easily be mis-understood.
The Fan has to be "thermally controlled" to get the Quiet bit. Many A64 Mobos do the thermal controlling, so the Fan itself rerquires no extra features.
Let me explain:
CnQ is actually just C - Cool. When the CPU is idle CnQ drops the CPU speed and Voltage, so less heat is produced.
You get less noise because you can then allow the CPU fan to run more slowly, while maintaining the same CPU temperature.
But for this to work you need the fan to be thermally controlled.
On my MSI Kn8 Neo there are bios setting to do this and it works well. You specify the target CPU temp and it adjusts the fan speed to try to keep the CPU at that temp.
Actually, this also works fine with CnQ disabled, which emphasizes the fact that CnQ is actually just the C bit.
I have built several machines which idle with the CPU at c. 45C and CPU fan speeds of 800 rpm. That's without CnQ.
I don't use CnQ because I have found that it does not always revert to full performace mode when a CPU intensive task fires up. Indeed, it always fails to revert to full performance mode when I start up Prime95. I think this problem exists with apps that immediately use all 100% of the CPU.
Does Asus A8V board have that bios setting for adjusting the cpu fan speed too?? And one more question...which cooler will do a better job on A64 3200+ (Winchester) - stock (boxed) cooler or Zalman 7000B-AlCu??
I have the zalman 7000b cu and I can't hear it at all even at full speed. It is quieter than most graphics card fans so chances are you'll never hear it .(I have to open the case and get within a foot of it to hear it)