• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

Fan reversal???

S

Sideroxylon

Gawd
Joined
Jun 7, 2004
Messages
734
I'm something of a control freak. So the other day I decided that I wanted to be able to control and monitor all the fans in my comp. Everything went smoothly until I rewired my Arctic Cooling VGA Silencer. This unit comes with a 2 wire fan connected to a 2 position switch for high and low speeds. Long story short, I ended up frying the fan motor when I rewired it incorrectly. For those of you who haven't tried this particular unit, it kicks ass. It does a great job of cooling your video card and it's quiet too when on low speed. Being that it comes with a 2 wire fan I wouldn't be able to monitor the rpm's anyways, so I figured I'd just replace the fan motor with one that fits and has a 3 wire connection. After disecting several fans I finally found one the right size in a slim 70mm fan I had lying around. Only problem is that the motor turns backwards for the blades on the fan of the VGA cooler. After further research it looks like almost all fan motors turn the same way. I was hoping that if I just reversed polarity to the fan motor it would turn backwards...wrong. So, now that all you people who know what your doing know that I don't, I pose these questions to you. Is there an easy way to make a fan motor turn backwards? And if so, will my Fan Master still register rpm's correctly?
 
zer0signal667 said:
No, pretty much all of them will only work in one direction.
Click to expand...

Yeah, that's the "gist" of it. Each unit is acctually pretty motor specific, but there are exceptions. You could find a fan motor that would work, but in the end, it is usually easier to buy a new one of what is really needed. I had that happen on my northbridge fan, and know how that goes...later:)
 
Just turn the diode in the moter 180 degrees and reverse the polarity.

...or remove the diode completely and put a wire or solder where it was, both solutions kinda require a soldering iron and some electronics skills.
 
Thanks guys. I knew I posted in the right forum. Just to update you all, it turns out that the fan was actually turning the right direction. The blades of the fan just look like they should be going the other direction (at least in my mind :rolleyes: ). I ended up buying another VGA Silencer to replace the one I fried in case I couldn't get it working correctly. When I got the new one last night first thing I did was check the rotation of the fan and it's turning the same way as my recently 'modded' one. So now I have a VGA Silencer that I can adjust from 1500 rpm to about 5000 rpm. Thats some cooling goodness right there. :D Thanks again for all your help guys.
 
OC_GORK said:
Just turn the diode in the moter 180 degrees and reverse the polarity.

...or remove the diode completely and put a wire or solder where it was, both solutions kinda require a soldering iron and some electronics skills.
Click to expand...

both are better than just buying another $5 fan :D ;)
 
I put one of those damn VGA silencers on my nameless 9100, the 2 pin fan connector fit fine.

It was only 1 week later i realised the fan wasnt spinning, this damn card hard the wires the opposite way to the norm, so i had to pay round to unclip the little wires and put them in the plug the right way, and now it works fine.

So dont take anything for granted !

Rob
 
You must log in or register to reply here.
Back
Top