So I just installed my new GPU a MSI radon r9 270 and I ran BF3 as a test and the performance was grate! but I left the side panel open just for the test and after playing for about 20 minutes I put my hand next to it and I fell it is a little warm so I go into my after burner and it said the max was 42 degrees Celsius GPU temp, So is that to hot? is it OK to get that warm?