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4650 overclocking

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Jan 12, 2010
Hello!Im new on this forum and i overclock my graphich card.I have gigabyte ati radeon hd 4650 1gb.Stock speeds are core 650mhz mem 800mhz.I overclocked core to 760 and memory to 1100mhz and i would like to go more.My core can go to 800 i tried but after some playing time my compyter restarts.How can i increse the gpu voltage?Is there a volt mod for this graphich card( for memory(ram)):sly:
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