Every so often when I boot up I get one long and three short beeps, which I've found out is a graphics card error message, but it always boots and runs fine afterwards. I'm just wondering if I should worry about the cause of the beeps or if the fact that everything's running fine means I can ignore it?
I'm using a Sapphire x1950xt 256 which I have overclocked using ATI tray tools if it helps.
Have you looked at the Asus support site to see if this is an issue in either their forums or in BIOS updates? Do you have the latest BIOS installed? If there's a MB error, that might clear it up. No offense intended, but it might also be that Sapphire card; my experience with that company is they are prone to hardware errors. It might be worth an RMA, just so you don't have something crop up in the future, after your warranty expires.