MSI R7770-PMD1GD5 problem

thegamerx8469

Honorable
Oct 12, 2013
42
0
10,530
I bought MSI R7770-PMD1GD5 and I plugged my VGA cable into the DVI-VGA adapter then plugged it in to my video card but my monitor couldn't detect it, it says no signal. my PSU came with the case and it isn't powerful enough to start the PC and the new gpu is in. because when I start my PC and the VGA cable is plugged into the onboard and the GPU in, my onboard graphics stops working and it only works when I remove the pci-e power cable or remove the gpu. but I'll get my cx430 soon. so I need help, and will the new PSU solve the problem?