Will my build be good enough

[huanwu26]

Hi, I will soon be upgrading my HP pavilion p6631p to a gaming rig. I will be upgrading to graphics card to a AMD ATI Radeon HD 7870, adding two more sticks of memory, and putting in a new PSU (Rosewill Hive Series 650W). First, I want to know if the graphic card will and if yes, how comfortably will it fit? Secondly, if you know if I will get good airflow out of it? Lastly, how much space must a you have in your computer to maintain good airflow?

Here is the specs of my current computer as it stands:
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02481324&lang=en&cc=us&contentType=SupportFAQ&prodSeriesId=4269976&prodTypeId=12454

Mid-size ATX
Height: 38.7 cm (15.23 inches)
Width: 17.5 cm (6.89 inches)
Length: 41.4 cm (16.29 inches)

 

[nvalhalla]

Stock card is 9.5 inches, should be ok for your Mid Tower. Stock cooler is exhausting, so it shouldn't warm up the case. Look to see if you can add a front fan to increase fresh air and it'll be fine.

 

[huanwu26]

Best answer selected by huanwu26.