With a noisy or under-rated power supply, a circuit board is an expensive piece of garbage.
| Family | Primary Reference |
|---|---|
| Virtex™ 5 FPGA | Virtex 5 PCB Designer's Guide |
| Virtex 4 FPGA | Virtex 4 PCB Designer's Guide, Virtex 4 User Guide |
| Virtex II, Virtex II Pro | XAPP623 |