how can i get the max rpm from cpu fan ??

[enginekhaled]

how can i get the max rpm from my cpu cooler regarding that i don't have a speed controller attached to the cpu fan ,,, ??

 

[ejsmith2]

Ummmmmmmmm.

Put it across the +12 and -5 volt rails?

That's 17v, right?

If that doesn't max it out, then that fan is failing and needs to be replaced.

P4's @ 3600Mhz ()wNz J00 4LL!!!!!!

 

[Bardic]

Or even better, I just looked at our power supply here, and there is a +12 and a -12. An entire 24 volts if you really get the urge. Probably not good for the fan though.

 

[ejsmith2]

That's why I only said 17v. Nearly every fan will run at that, but the vast majority will just melt down, or schrapnel, at 24v.

Damn these limitations!!!!!

[Jedi mind trick] You LOVE Palladium. [/mind trick]

 

[CMRvet]

Fan OVERVOLTING?

Read <A HREF="http://www.overclockers.com/tips808" target="_new">this</A> complete "how to" guide.

<b>(<font color=yellow>as good as it looks</font color=yellow>)</b>

 

[lhgpoobaa]

Good god! Imagine a Delta Ultra high speed fan @ 17V 😱

<b> 😎 I think :frown: I'm :redface: addicted to 😱 these 😡 ever 😱 so :tongue: cute 😎 smiley :lol: faces! </b>

 

[ejsmith2]

Remember that part in "Caddy Shack", where Bill Murray cleans up the place with a gas-powered blower?

Just like that. Aim the fan around the room.

[Jedi mind trick] You LOVE Palladium. [/mind trick]

 

[CMRvet]

Actually my 6CU+ runs at 7400 rpm @ 12V and 9200 rpm @15V

<b>(<font color=yellow>as good as it looks</font color=yellow>)</b>

 

[lhgpoobaa]

Thats just sick.
You would be able to hear that fan across 3 suburbs!

and doesnt the motor overheat?
and have u tried 24v yet?

<b> 😎 I think :frown: I'm :redface: addicted to 😱 these 😡 ever 😱 so :tongue: cute 😎 smiley :lol: faces! </b>

 

[CMRvet]

In fact I’m running it now at 4000 rpm. I just raise the speed for gaming or watching movies.

I feed the fan with an external source (regulated) so I can change the voltage easily.

You would be able to hear that fan across 3 suburbs!

At 9000 rpm it sound like a hair dryer, but didn’t try that speed for a long time, so don’t know about motor overheat.


<b>(<font color=yellow>as good as it looks</font color=yellow>)</b>

 

[lhgpoobaa]

mmmm ditto. 80mm 5000rpm delta on dual serial rheostats. I get 2800 to 5000 rpm.

<b><font color=red>He who bargains with a dragon is either a fool or a corpse.</font color=red></b>

 

[CMRvet]

If you were using an external source you could raise the voltage even more than 12 V in order to get rpm’s higher than 5000. …… and also remove some load from the PSU.

In my case this source is 1.5 to 15 V.


<b>(<font color=yellow>as good as it looks</font color=yellow>)</b>

 

[lhgpoobaa]

LOL i dont want 17volts!
hehehe

<b><font color=red>He who bargains with a dragon is either a fool or a corpse.</font color=red></b>