Dead CPU fans

[Sasq]

ok, I've got a little project that I'll tell all of you about in a while, but in the mean time, how long would you feel comfortable with your cpu fan being shut down.

I realize that not at all is the usual answer, but how long would your cpu be perfectly happy without its fan.

Thanks for the input

Dan

[dZeus]

inifinite time

though it does get inconveniently hot.... within thermal specifications but it probably does shorten the lifespan drasticly

[cbman]

Mine will do about 37 seconds (after some experimentation)

[CHHAS]

I wouldn't run my Athlon or Duron without fan although they would probably survive a few seconds :P
My old Katmai is perfectly happy running without a fan if I clock it down a bit and skip on the heavy loads.

[Fat Tone]

I think I know where you are going...

let me guess...turn fans on and off (maybe case & cpu in anti-phase) to reduce system noise?
Nice idea, but I bet thats one hell of an annoying cyclic sound.

Good Luck

If I'm wrong, and if I'm not, I'm all ears ...

[Liquid Snake]

Quite a long time. My P3-750 (Slot 1) is a horrible overclocker but it can sure survive 70 degrees C temperatures for a few hours. A while ago, while installing some RAM, I had to disconnect the CPU fans since the cables kept getting in the way. I forgot to plug them back in. The system was pretty unstable of course, and after a few hours I decide to check Motherboard Monitor and then I see 70 degrees C on the CPU monitor Don't know if it was accurate, as I doubt that any CPU can survive that long at 70 degrees C.

[orangejulius]

Two words: <a href="http://www.dansdata.com/c3.htm">VIA C3</a>

[Sasq]

All I can say Tony is keep listening

few hints ....

4 fan circuits (maybe more or less), more temp sessors then your need and a bunch of other stuff

still in alpha testing phase atm so can't say much more

Regards

Dan

[Technoid]

My cpu fan can die any time as I have a external fan with a shroud that is controlled by a digitaldoc5 pointed at my SK6....

The SK6 is still only beaten by the latest alpha....

[Pace]

Does the SK6 need a copper shim for FCPGA1 CPUs?

[[GDI]Raptor]

I use the SK6 on a AthlonXP processor. The fan is a SanyoDenki fan, it's quiet, and it runs rety cool. Im satisfied with it. I haven't tried to remove the fan yet, and I have no plans of doing so either... But my ASUS A7V266-E should suport the on-chip thermal sensor.....

[DentyCracker]

My Duron has had it's fan shut off on a few occasions while running at 700 and 850 without problems. I have a Globalwin WBK38 on it so I suppose the HS plus the airflow saved it. If it were running at 950 it might not have survived. (at 700 and 850 voltage is 1.65V, at 950 it is 1.775 V)

[VJ]

Sasq,

You might want to check out

http://www6.tomshardware.com/cpu/01q3/010917/index.html

This sums it up : "We wanted to find out how well the latest processors from AMD and Intel are able to cope with the worst-case scenario - a sudden complete removal of the heat sink. " They actually remove the CPU's heatsink while the computer is operating , and then they just wait and see what happens...

Very interesting, yet somehow I also found it quite amusing.

Jörg

[Sasq]

Been there seen that, the question is in reference to how long the fan can be powered down, which is vastly different to a heatsink falling off.

I should have stated in the original question - how long can your fan power down with your CPU at standard clocking.

Has something to do with wanting to know minimum start up voltage for the fan

Dan

[VJ]

@Sasq: Sorry, I misread the question...
@Greebe: Well, it is friday-evening...

Jörg