hey, i'm a newbie. I have and ASUS GeForce FX 5700 256MB (V9570TD) video card (425/500). I can't seem to oc this card. I've tried coolbits and rivatuner. Changing the core and memory clock does an opposite effect on the card. It actually slows the card down in terms of FPS. No artifacts, snow, etc., core temps are around 57 C, under load with core clock OCed to 450. Increasing the core by 5 Hz goes well, but as soon as i increase the mem clock from 500 to 505 Hz, the FPS drops. What's up with that??? If anyone out there has the same card and had success in OCing it please give my some advice. Thanks in advance.