Graphic card oc

Hello,
i have a query....
i have an xfx hd 4650 1gb ddr2(600/500) gc
i oced it successfully to (740/575)
would it possible to oc it to (750/620) by changing the pcie bus speed(100mhz)...and would it risk data on hdd.......
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  1. Nonono, do not OC the PCI-Express. You're already getting an amazing overclock out of yours (Mine only went to 660/560), and I wouldn't expect to get much more.

    It only increased bandwidth too, IIRC, which your HD4650 is not consuming even half of.
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