Gpu fan not spinning

[soXIDID]

Hi guys I have a computer and I have just changed motherboards and something has happened, I have plugged everything in well and my CPU fan is spinning but my graphics card is not, however after running it for a bit I could feel it getting hotter, I have re applied thermal paste twice, checked my CPU power cable and my 24 pin power cable as well. I have also reseated RAM, all in their proper places. All cables have been accounted for also when I turn on the computer the CPU power phase led light jumps to four when I boot, here are my specs
MSI 970A-G46
AMD Fx 4130
Radeon HD 7750
Windows 7
2 sticks 4gb each
Antec Vp 450

Thank you guys so much for your help

 

[pyr0_m4n]

So unless you manually shut off the fans, it sounds like they failed. I mean, I can plug my card into my board with only power through the pcie slot and still get the fans to spin.

 

[soXIDID]

Well the graphics have worked just an hour before I tried again and I didn't do much with it, a weird thing is that my motherboard still powers on even though I don't have the 8 pin CPU power and the 4 pin main power connected, only the 20 pin is plugged in, that makes me think hardware relayed to the motherboard