What Conumdrum is asking is if you have other components being cooled by the HS other than the GPU...like RAM, MOSFETs, etc.
And BTW, that cooling fan isn't going to cool your 9800GT...at all. It was designed for like a GeForce 3/4 series and Radeon 8000/9000 series about 7-8 years ago. Your GPU will roast with that thing on it. Compare it to trying to cool a dump truck engine with hand-held misting fan. Besides, I highly doubt the mounting holes come close to lining up.