Ok, I just came from vacation and my cpu had attracted dust so before turning it on I cleaned my gpu(ati 5870) first. I tried booting it up and I get no display but the gpu fan still runs. What does that mean? Did I break my gpu or my psu has wore out? Unfortunately, I don't have an extra cpu to test my graphics card but I do have an old 8800GT and it booted up fine. Also, I've contacted XFX and they already sent me an RMA. How is their service?