Hi I have a older G5 dual 1.8GHz. It's had some heating issue for the last years when I'm really putting it to work. It get up to 130 degrees F. I was wondering if anyone has any suggestions to cool it down or even add another fan. I've never had to add a fan so I was hoping to get some feedback on opinions from other ppl if they have heard anything as a good fix. Thanks for you time.