Meron pero delikado. I strongly advise against it. May chance kasi na hindi maactivate yung pipelines and damage your existing ones.

You just have to download the ROM for the vidcard. For yours, dapat 9800/9800 PRO ROM.

Sabi sayo mag 9800Pro ka na eh! hehehe

Pero yun nga, i-overclock mo CPU mo. It's quite safe. the worst that could happen is that your system will hang.