Can upgrading an all-around pc like the type you pick up from wal-mart damage the motherboard or gpu, or otherwise cause problems?
I was playing some Project M a while back, when this guy who said he was a hardware engineer or an electrician or something along those lines says in the global chat lobby that upgrading prebuilts is a recipe for disaster.
He said that it could completely ruin components beyond repair. This is a problem because my 3 year old ASUS M51AC-US004S is really underpowered for games past 2011, and I was planning on upgrading it. From what I heard, the real bottleneck is the graphics card, so I opted to replace it with a GTX 970, and by extension replace the psu with a 550W XFX TS Series P1550SXXB9 to keep it running.
Does this really have a chance of ruining my pc, or any other pc?
I would really rather not spend ~$400 and potentially waste it along with any of the original components.
Thanks