Brand new system with Asus A7N8X-X mobo, AMD Athlon processor. The first hard drive was a western digital. It immediately started making loud clicking noises when I powered it up. I returned it and bought a Maxtor diamond Max 80GB drive. This one allowed me to install windows, etc, and then started making clicking noises and locking up. Powermax reported that the drive was failing. Returned it and got an identical Maxtor drive. Everything worked perfectly for a few days. Since I actually got the pc to boot, and some software installed, I discovered that the system was very unstable. A memory test revealed that the memory stick was bad. After replacing it, all was well. I sent the computer home with its rightful owner, and he called me almost immediately. As soon as he powered it on, the hard drive started making loud clicking noises and locked up. Powermax revealed that the drive was failing. How likely is it that this computer destroys three hard drives? Is there any possibility that the mobo or power supply is frying these drives? I've been carefully watching heat, and it seems withing tolerable ranges. HD is about 100 degrees, CPU around 115 degrees. The case has two big fans on it, and the cpu has another. Am I doing something wrong?