leukippos01

Hello everyone. I've recently bought a new graphics card for my pc. Specifically the NVIDIA GTS 250(GV-N250-1GI/PCI-E 2.0 1GB GDDR3/256 bit). The problem is that during the installation a warning message appears saying that the graphics card doesn't use all of its power and is in safe mode otherwise my system will be at risk. Also says that i need an additional electric connection. The model of the motherboard is : Gigabyte GA-946-S3 - motherboard - ATX - i946GZ. if anyone can help me understand what's the problem i will be glad to know.