I dont think 2/0/3.0 pcie differences whould be the problem, but I can't find how much power Gigabyte GA-P55-UD4 provides per pcie slot as that might be the problem? Can someone help me?
The PCI slot will provide up to 75W for either 2.0 or 3.0, you will need to insure that your PSU has an 8 pin PCIe power connector or use a suitable adapter.
The PCI slot will provide up to 75W for either 2.0 or 3.0, you will need to insure that your PSU has an 8 pin PCIe power connector or use a suitable adapter.