I recently received a Sapphire 9800pro 128mb from Newegg. I was plesantly supprised when I took of the stock heatsink to find the it was in fact a R360 core. I have since replaced the stock heatsink with a vga silencer. I am a little reluctant to overclock because I have no idea what temp it is running at. How can I tell if the core that I received is capable of on-die temp monitoring? Also, what is the best XT bios to flash this card with?