Have a read of this:
Electro-magnetic interference on M2A-VM HDMI Motherboard
That sounds like a nail on the head right there.
Now not being a hardware guru with pcs, i can make a comp but im by no means a pro. My mobo has 2 x PCIEx16 and 2xPCIEx1, GPU is in 16 slot 1 and DVB was forced into 1 slot 2 due to fan on GPU etc and is very very close to one another
Can i put my GPU in 16 slot 2 and then put my tv card in 1 slot 1? or wil a 1x pcie card still work in a 16 time slot and i could drop it down a slot.
Mobo pic attached for reference. Have also updated my specs as best as i can remember while im at work.
** Ok it seems i can run my x1 in a x16 slot, all i need to do is find out if I can run my GPU from 16 slot 2 and that will give me the greatest distance between the 2 cards (GPU & DVB-T)