A:AnswerIt seems to me like your heat circulation inside your case is not enough. I would invest into more fans if possible. Also check your GeForce Experience software and make sure it is on the right fan settings to keep your card cool enough.
A:AnswerOff the top of my head I would say no and I would not recommend this gpu for that upgrade. Your HP is 10.5 inches deep, this gpu is 9.8 inches long, basically a very tight fit. The GPU your HP came with was selected to fit a particular component configuration. But it can be done, you'd probably have to remove a brace or bracket to squeeze it in there. I'm just saying this may not fit, so keep your receipt.
A:AnswerThe motherboard shouldn’t have any problems fitting the graphics card, or any graphics card for that matter. But you do want to make sure that you have a big enough power supply and a decent enough CPU to handle this card.
A:AnswerI'm not sure about your cpu but I have a ryzen 5 2600 with 16gb ram and a b450 max mb and I haven't had any issues, I've been using this card for about a month
A:AnswerYou must be looking at the wrong card, newegg has a promo on it but the regular listing price there is currently $424.50
https://www.newegg.com/msi-geforce-rtx-2060-super-rtx-2060-super-gaming-x/p/N82E16814137440?Item=N82E16814137440