recommended PSU

There is a really good deal right now on a used r9 290x Tri-X (it's around 40-50 $). However the seller advertises it as faulty. He tried it with a 400W psu. The PC started up as it should, but no signal. I've read, that the recommended psu for this card is 750 W, but it needs at least like a...

It is for my brothers PC and they have more than enough power and ports to do it and the two monitors are the same model, size, and resolution. Is it possible to combine the monitos as if they were sayyyyyy a 2560x1024 resolution? I doubt that resolution exists lol but i would love for them to...

I have A10 58k Processor, 1Tera WD and ASUS F2A55-M LK2 PLUS. So yeah I think you can go figure that it can handle 8gb ram, which it did before. It started earlier when my mobo had a black out, I decided to clean it maybe it was getting too dusty and I even removed the fan and CPU to apply new...