I just upgrade the family computer's fan to a golden orb and now I have an extra generic fgpga hsf. It's on of those plain square-ish $4 hsfs but it's almost 5 times the size of the hsf on my GeForce 1 DDR. The base of the heatsink is roughly 2x1.9 inches (5.1x5.0 cm) so it's wider than the geforce hsf. Would it matter if the hsf is bigger than the chip so that it hangs over? Also, the fan blades are cupped downwards toward the heatsink. That means that the fan blows into the heatsink, right? Should I reverse the fan? Thanks.