notebook cooling pad

I got one these notebook cooling pads, but it seems not to be very
effective. My notebook (Toshiba A40) blows the air out on the rear side and
sucks it in from below, there where the cooling pad is placed. But the
cooling pad also sucks from there and blows out at the rear side. Makes it
any sense, or shoud I reverse the connectors of the fans to let them rotate
in the other direction?

Eggert
.