Hi, Most cases today come with a fan port in the front. You should see a perforated round hole maybe covered with a plastic square about the size of a fan. Look under the front of the face of the case and you should see an opening for the fans exhaust or intake. No need to mess with the HD covers. Suggestion: half your fans, including the Power Supply fan, should blow out and half in to move the most fresh air through the case. Hope this helps a little, Jim