VGA memory clock problem

mar4e

Distinguished
May 14, 2010
13
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18,510
I just bought a new VGA it's a geforce 9500GT,
but the memory clock is 400Mhz instead of 800Mhz.
When i try to overclock it back to normal it starts to malfunction when i get it up to 450Mhz.
Please help how to fix this problem.
Thanks!