Just a Quickie... 7500RPM Coolermaster?

[gangstawrapper]

I have two coolermaster units fitted sandwich style on to my 300/450a. I have a BX-6 mobo and it reports the fan to be running as 7500+RPM. Is this normal? The other fan runs as 5500...

[gangstawrapper]

Guys! Is my system gonna blow up or what? The fan is making a lotta noise...
any help much appreciated http://www.sysopt.com/forum/smile.gif

[cobain1crt]

if it is running that fast, it means that it detects that there is to much heat and has switched into overdrive. This is very bad for the fan! You will have to alter the fan to stop this. Below are the steps...

1. turn off computer

2. Pull out the celery sandwich.

3. Cut the connector off of the cable from the fan that is messing up.

4. Strip the ends of the wire you just cut, do not cut the yellow wire, leave it totaly insilated.

5. strip a small amount of the wire off of both of the wires for the other fan, but do not cut the wires.

6. Wrap the Red wire around the stripped part of the other red wire, the black wire around the stripped part of the other black wire.

7. Tape up the exposed wires with an elastic tape (duct/electrical)

You are now running the entire fan set off of the power supply, and they should work fine now. I did the same for the one I made myself, when I was making mine I acidently broke the thermomiter. Try it out, and tell me how it goes.

[gangstawrapper]

Thanx for the advice cobain, but even if I connect the fan to the chassis/power fan headers I still get the same speed. If I put my second fan (I have one on each side of the sandwich) on the cpu header it runs at 5500 like normal...
Also, I like to run at least one fan off the cpu header because my BX-6 can turn it off whenever the sys goes into standby. Also, the MB peaks at 31c with one fan on 2.1v so it's not exactly burning (like my Klamath 233/350 used to http://www.sysopt.com/forum/smile.gif )

[GibsonXXI]

Don't forget the vacumn factor...

sandwitching two fans mean x2 the airflow is passing between them, this will force both fans to speed up as a vacumn is created between the two.

this is obviously the same principle as a jet engine http://sysopt.earthweb.com/forum/smile.gif

[alpha]

I wouldn't complain if mine ran that quickly! I got a fan to go about 26000rpm once - I used a vacume cleaner though http://sysopt.earthweb.com/forum/smile.gif