A:AnswerThis desktop has HDMI but no VGA port. Acer has not tested adapters so we cannot one will work. You might also post your question on the Acer Community where there are many users that post questions and offer help and advice on Acer products. The link is: https://community.acer.com/
A:AnswerAcer has not tested or qualified Windows 7 on our currently shipping products. You may be able to install it, but Acer does not offer Windows 7 drivers for this model.
A:AnswerThis is not something we would assist with, but you might post your question on the Acer Community where there are many users/gamers that post questions and offer help and advice on Acer products. The link is: https://community.acer.com/
A:AnswerThe power supply can be upgrade but 300 watts is more than enough for the size of graphics card you can install.
The motherboard is too small to for any card over one fan.
I have found that anything over 6gb is too large to fit and would need a power supply of at least 600 watts.
