I just finished building my own PC yesterday. These are the parts that I used...
Biostar Tforce 6100 1024 MB Corsair VS PC3200 AMD Sempron 3400+ Maxtor 40 GB hard drive IBM CD-RW IBM DVD-Rom IBM Floppy drive Rosewill case w/ 20 pin 400W PSU
All brand new and ordered from Newegg.com
When I boot up the computer, the fan's start spinning, but there is no system beep or anything like that. The LED indicators show that there is power running through the motherboard, but there is a chipset/cpu error. So I unplugged the whole thing and let it drain overnight. This morning, I started with the bare essentials....CPU, Heatsinks, RAM just to see if it would detect the CPU then, still it didn't. Any ideas on what to do?