I have read that some motherboard circuit board trace "wires" will burn up when the fans are hooked to them. I would consider that, and also that the MB has some sort of problem. Rick Glazier From: "nasrull" <[log in to unmask]> > Now all the fans are not running, including CPU fan. I checked the power > supply 12 volts and it is there giving 12.5 volt. But the pin on any fan > connectors on mobo does not have any voltage. PCBUILD's List Owners: Bob Wright<[log in to unmask]> Drew Dunn<[log in to unmask]>