I just bought the power color 1900xtx video card. My core clock in the cataclystic screen( I don't think I spelt that correctly) says that its at 500mhz and that the memory is at 594mhz. When I do the auto clocking it gets to 80c and then says do you want to save these changes. I save them and it stays the same. The only thing I think of its a bad card. But the other thing is I have only have 512mb of ram because g.skill tends to suck on shipping good memory. Which by the way I didn't know. Can any one help me. My pc setup is a amd 3800x2 proc, mobo is the Asus A8R32-MVP Deluxe Radeon Xpress 3200 CrossFire, and of course the power color 1900xtx. The power supply antec x connect 550 watt power supply. I am returning the memory to newegg to get a new pair of dual channel memory.