This is not a "Windows on the Mac" question, it's a general Windows question. Unfortunately, this is the only forum I'm a part of, so I hope you'll be able to help me! I run Windows XP on my file server, and I recently replaced the Athlon 64 in it with an Opteron. Everything has booted up fine, but for some reason it will only run things on one core of the dual-core Opteron (the Athlon 64 was a single-core chip). I've been told that I need to reinstall Windows to fix this problem. The problem is... I have a RAID 5 array with all my files and info on it in this machine, and I'm terrified that a reinstall of Windows could harm it somehow. Can anyone tell me it won't? It's a hardware RAID, supported through the motherboard, but I had to install drivers in Windows for it to see it. Soooo.. any advice? Other fixes?