May I use a Pentium 4 powersupply with a AMD based system?
Certainly. A Pentium 4 powersupply/Pentium4 ready powersupply can be used just fine with an AMD based system. These types of powersupplies support P4, but they do not require you to use a P4. Pentium4 ready powersupplies have one extra connector on them, a 2×2 12v connector. When using a P4 ready powersupply with a non-P4 system you simply do not use the extra connector.