right i know this will vart from diffrent set up and ther are many other factors that determine a good safe running temp but as a round figure what is a safe tem to try and keep them from going over, currently mine whilst running a game with all settings maxed out are running about 65-70 under load and around 40-45 on idle , i know obvisously add fans to allow better cooling will bring these temp down bu just as a guideline what is a safe temp to try and avoid going over