A:AnswerHello,
This PC has a 650 watt 80plus gold rated power supply. We've shipped some stock out to Best Buy, but in limited quantities, so you would have to check with them to see if it's in stock near you.
A:AnswerHello,
Depending on which 30 series card you get, you may need to make changes. If you get 3080 or higher, you would have to upgrade the power supply. Also, some 3090 models may not fit in this case. The rest of the hardware would work fine.
A:AnswerHello,
Bubbles are not abnormal, but if you think you are starting to see more and more, you may need to refill the loop. Please contact our technical support if you think that is the case.