I would agree. It sounds like they knew something was wrong with that part of the board from either testing or experience. I'm surprised they changed a PCIE slot and not just give you a new board. I would approach them again and tell them it isn't fixed.
I wouldn't like to say what's wrong with the motherboard but replacing the pcie slot sounds very unusual. Let's see what they say first before choosing another..
No not at all.. It means that it's stopped using the hardware to accelerate the graphics. It doesn't give a reason why and could be down to either the driver, gpu or gpu slot. (which really you kinda knew already)
Unfortunately yes. Microsoft considers the changing of a motherboard means the system has changed so much it's basically a new computer and Windows will need either re-installing or re-activation..
okay.. I will take this to repair PC shop and lets see what is the faulty thing.
Can the PSU be bad?
What ever forum I am visiting with same problem says the keyboard jamming / off is happen because of mobo.