Fans aren't working?

[xhazy]

I have an antec 900 case and none of the fans built in seem to work.. the LED lights do though.

They are all plugged in and I have tried changing the fan speeds but no matter what they will not run, everything else is working great and the CPU fan is working.
Can anyone help with this?

 

[Nenu]

Try them on another PSU.
If that doesnt work, it looks like there might be a faulty batch of fans.

 

[xhazy]

Hmm.. I got them running but the speeds do not show in bios or fanspeed... they both say the fans are running at 0 rpm but they are clearly running

 

[biztyke]

most antec tricool fans that come with cases are two wire, not three......hence, no speed sensor. if you have 2 wire fans, that would be your explanation.