I had built my computer last october, and i had placed the Visiontek ATI Radeon 4850. And today I just won a new 4850 GPU, but the cards look different from the one that is placed in my computer. can i still crossfire them?! they are both visiontek and both 4850s. please let me know since this was going to be my next project and am wanting to do this asap. Thanks in advance.