Hi I have a HD radeon 5870 that I have gotten off my friend. When my friend had this, he was able to run games such as star craft, bf, in high and ultra graphics with average heat of 60~70. After getting the exact card I'm having trouble running the same games in lower quality as it heats up very fast. I run StarCraft on medium and it takes me to 80 half way through the game. Same with payday 2 I have to run the game in low resolution and low graphics but still it heats up to 90+ in about 30 minutes. Any ideas?